Dr. Alan Eih Chih Thong, MD

  • Stanford, CA
  • Urologist
NPI1689835738PAC ID4082921820
Medicare services, 2024
1,103
Medicare patients, 2024
605
Part D claims, 2024
235
Publications
35
MIPS score, 2024
89
Practice address
300 Pasteur Drive, Stanford, CA 94305
Practice phone
Call (650) 723-4000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Stanford Hospital at 300 Pasteur Drive

Hospital · Stanford, California

See all 5 affiliations

Find Dr. Thong's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Dr. Alan Eih Chih Thong is a urologist in Stanford, California

Dr. Thong practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Thong's NPI, 1689835738, was assigned on June 21, 2008. Dr. Thong graduated from Pritzker School of Medicine in 2008. Dr. Thong holds California license A109039.

NPI and contact details
Medicare PAC ID
4082921820
NPI enumeration date
June 21, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 723-4000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Alan Eih Chih Thong practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California

Dr. Thong's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Source: Dmand AI Affiliation Data

Dr. Alan Eih Chih Thong is affiliated with 4 sites of care and 1 medical group

Dr. Thong's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dr. Thong is also affiliated with Stanford Health Care Tri-Valley. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Thong to 2 more hospitals, each named with a free account. Dr. Thong's employer is on file too: a hospital.

See all 5 affiliations for Dr. Thong

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Alan Eih Chih Thong's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thong practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stanford Hospital at 300 Pasteur DriveAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Thong practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Stanford University and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Alan Eih Chih Thong is one of 1,395 urologists in California

Urology is Dr. Thong's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Thong is board certified in urology by the American Board of Urology. Dmand AI has Dr. Thong's licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Urology, CaliforniaPrimaryLicense A109039 · 2009 to 2027 · taxonomy 208800000X
  • New York licenseLicense 274598 · 2014 to 2017

Clinical focus

Dmand AI lists bladder removal, enlarged prostate, enlarged prostate transurethral surgery (TURP), erectile dysfunction, kidney cysts, kidney removal surgery, prostate cancer and prostate surgery among the conditions Dr. Thong treats.

Urologists near Dr. Thong

Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Alan Eih Chih Thong billed Medicare for 1,103 services in 2024

CMS data shows 1,103 Medicare services from Dr. Thong across 15 procedure codes in 2024, for 605 Medicare patients. Medicare paid $141,201 for them.

Medicare services, 20241,103
Medicare patients605
Paid by Medicare$141,201
Procedure codes15

Dr. Thong's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5392024: 5302%
Surgery
2023: 2742024: 37035%
Other services
2023: 112024: 1501264%
Imaging
2023: 762024: 5330%

Where Dr. Thong's Medicare services took place, 2024

  • In an office69263%
  • In a facility41137%

Dr. Thong compared with the California median for urologists, 2024

  • Dr. Thong
  • California median
Medicare services
1,103vs 1,0505% above
Medicare patients
605vs 34675% above
Part D claims
195vs 64270% below

Medians across 1,310 urologists in California with Dmand AI profiles that report each measure.

Dr. Thong's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Thong

Need commercial claims for Dr. Thong?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thong and other urologists in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Alan Eih Chih Thong treated 605 Medicare patients in 2024, average age 74

CMS counts 605 Medicare patients who saw Dr. Thong in 2024. The largest group is 65 to 74, with 321 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Thong's median patient age at 68, with 19% women.

Medicare patients, 2024605
Average age74
Average risk score1.41
Also on Medicaid18%

Dr. Thong's Medicare patients by age, 2024

Dr. Thong's Medicare patients by sex, 2024

  • Women10918%
  • Men49682%

Chronic conditions among Dr. Thong's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure70%
  3. Cancer55%
  4. Arthritis33%
  5. Ischemic heart disease31%
  6. Diabetes30%
  7. Chronic kidney disease28%
  8. Atrial fibrillation20%

Share of Medicare patients with each condition. A patient can have several.

Dr. Thong's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women19%
  • Men80%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Alan Eih Chih Thong wrote 235 Medicare Part D claims in 2024

In 2024, Dr. Thong wrote 235 Medicare Part D claims for 72 patients. 97% of them were for generic drugs. CMS names the drug for 195 of them, across 5 drugs with 11 or more claims each, at $3,203 in total drug cost. In 2023, CMS named 286 claims across 5 drugs.

Part D claims, 2024235
Drugs named by CMS5
Total drug cost$3,203
Part D patients72

Dr. Thong's Part D claims by kind of drug, 2024

  • Generic229 claims97%
  • Brand-name and other6 claims3%

Dr. Thong's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Thong's Part D claims, 2024

  • Antibiotics5%11 of 235 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2862024: 19532%

Drugs named by CMS: 5 in 2024, 5 in 2023.

See all prescribing by Dr. Thong

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Alan Eih Chih Thong scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Thong for performance year 2024, reported as part of a group. Dr. Thong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Thong as offering telehealth. CMS counts 12 procedures of prostate resection by Dr. Thong, more than 63% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Thong's MIPS scores, performance year 2024

  • 89of 100Final score
  • 87.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Thong ranks in Medicare procedure volume

Prostate resection
63rd percentile12 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

Find urologists like Dr. Thong by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Alan Eih Chih Thong has 35 publications on record

Dmand AI links 35 papers to Dr. Thong, published from 2008 to 2024. 2022 was the busiest year, with 6. The most frequent topics are Prostatic Neoplasms, Prostatectomy and Arthroplasty, Replacement, Hip. Dr. Thong has published most often in J Arthroplasty. Dr. Thong's most frequent co-authors are Pejman Ghanouni, MD, PhD, Geoffrey Alexander Sonn, MD and Benjamin Inbeh Chung, MD.

Papers35
Years published2008 to 2024

Dr. Thong's papers by year, 2012 to 2024

Topics Dr. Thong writes about most

  • Prostatic Neoplasms
  • Prostatectomy
  • Arthroplasty, Replacement, Hip
  • Postoperative Complications
  • Robotics
  • Arthroplasty, Replacement, Knee
  • Kidney Neoplasms
  • Magnetic Resonance Imaging

Dr. Thong's most frequent co-authors

Recent publications by Dr. Thong

See all 35 publications and co-authors

See who Dr. Thong researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thong works with, so you can find a warm path to the right urologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Alan Eih Chih Thong received $27,057 in industry payments from 2017 to 2025

CMS Open Payments shows 74 general payments to Dr. Thong from 5 drug and device companies from 2017 to 2025. Education make up the largest share, 37% of the total. Intuitive Surgical, Inc. paid the most, $20,332.

General payments to Dr. Thong by program year, 2017 to 2025

General payments to Dr. Thong by kind, 2017 to 2025

$27.1Kin total
  • Education$10,01837%
  • Travel and lodging$8,08830%
  • Speaker and faculty fees$4,70017%
  • Food and beverage$4,25116%

Companies that paid Dr. Thong the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Thong

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Alan Eih Chih Thong graduated from Pritzker School of Medicine

Dr. Thong graduated from Pritzker School of Medicine in 2008. Dr. Thong is a member of ACS.

  1. Medical schoolPritzker School of Medicine
  2. Board certified in urologyAmerican Board of Urology

Source: Dmand AI Professional Profile Data

Dr. Alan Eih Chih Thong accepts plans from 7 insurance carriers

Dr. Thong is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare

Plan types Dr. Thong accepts, by number of carriers

  1. Medicare5
  2. PPO4
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Alan Eih Chih Thong's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Alan Eih Chih Thong

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Alan Eih Chih Thong's NPI number?

Dr. Alan Eih Chih Thong's NPI number is 1689835738. It was assigned on June 21, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Alan Eih Chih Thong?

Dr. Alan Eih Chih Thong is a urologist in Stanford, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).

Where does Dr. Alan Eih Chih Thong practice?

Dr. Thong practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Thong's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Thong to 2 hospitals.

What is Dr. Alan Eih Chih Thong's office phone number?

The practice phone on file for Dr. Thong is (650) 723-4000.

What is Dr. Alan Eih Chih Thong's medical license number?

Dr. Thong holds California license A109039, one of the licenses on file in 2 states.

Which states has Dr. Alan Eih Chih Thong been licensed in?

Dmand AI has state licenses on file for Dr. Thong in California (2009 to 2027) and New York (2014 to 2017).

Which hospitals is Dr. Alan Eih Chih Thong affiliated with?

Dr. Thong practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dr. Thong is also affiliated with Stanford Health Care Tri-Valley. Dmand AI links Dr. Thong to 2 more hospitals.

What medical group is Dr. Alan Eih Chih Thong part of?

Dr. Thong is linked to Stanford Health Care.

Does Dr. Alan Eih Chih Thong accept Medicare?

Yes. CMS data shows Dr. Thong billed Medicare for 1,103 services in 2024, and Dr. Thong accepts Medicare assignment.

Does Dr. Alan Eih Chih Thong offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Thong as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Alan Eih Chih Thong's MIPS score?

Dr. Thong's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

How many Medicare patients does Dr. Alan Eih Chih Thong see?

CMS counts 605 Medicare patients who saw Dr. Thong in 2024, with an average age of 74.

Is Dr. Alan Eih Chih Thong board certified?

Yes. Dr. Thong is board certified in urology by the American Board of Urology.

What services does Dr. Alan Eih Chih Thong bill to Medicare?

In 2024, Dr. Thong's most billed Medicare services were office visit, new patient (99204), surgery: urinary system (52000) and medicare service (G2211).

Where did Dr. Alan Eih Chih Thong go to medical school?

Dr. Thong graduated from Pritzker School of Medicine in 2008.

What drugs does Dr. Alan Eih Chih Thong prescribe most?

In 2024 Medicare Part D data, Dr. Thong's most prescribed drugs by claims were Alfuzosin HCl ER, Finasteride and Tamsulosin HCl.

Has Dr. Alan Eih Chih Thong received payments from drug or device companies?

CMS Open Payments shows $27,057 in general payments to Dr. Thong from 5 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Alan Eih Chih Thong been practicing?

Dr. Thong graduated from medical school in 2008, 18 years ago.

Does Dr. Alan Eih Chih Thong do research?

Dmand AI links 35 publications to Dr. Thong, published from 2008 to 2024.

Who does Dr. Alan Eih Chih Thong publish with?

Dr. Thong's most frequent co-authors are Pejman Ghanouni, MD, PhD (8 shared papers), Geoffrey Alexander Sonn, MD (8 shared papers) and Benjamin Inbeh Chung, MD (6 shared papers).

What insurance does Dr. Alan Eih Chih Thong accept?

Dr. Thong is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

Selling to urology practices?

See urologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)