Tiffany Lillian Cheng

  • San Mateo, CA
  • Emergency medicine physician
NPI1932561396PAC ID0042559593
Medicare services, 2024
75
Medicare patients, 2024
72
Part D claims, 2024
81
Publications
6
MIPS score, 2024
97
Practice address
222 W 39th Ave, San Mateo, CA 94403
Practice phone
Call (650) 573-2222
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

San Mateo Medical Center

Hospital · San Mateo, California

See all 4 affiliations

Find Tiffany Cheng'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

Tiffany Lillian Cheng is an emergency medicine physician in San Mateo, California

Tiffany Cheng practices at San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California.

Tiffany Cheng's NPI, 1932561396, was assigned on March 24, 2016. Tiffany Cheng graduated from WashU Medicine in 2016. Tiffany Cheng holds California license A153486.

NPI and contact details
Medicare PAC ID
0042559593
NPI enumeration date
March 24, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(650) 573-2222
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
36
Medical school graduation
2016

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

Tiffany Lillian Cheng practices at San Mateo Medical Center in San Mateo, California

Tiffany Cheng's primary practice is San Mateo Medical Center, at 222 W 39th Ave, San Mateo, CA 94403 in San Mateo County. The practice phone is (650) 573-2222.

Source: Dmand AI Affiliation Data

Tiffany Lillian Cheng is affiliated with 3 sites of care and 1 medical group

Tiffany Cheng's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. Tiffany Cheng is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is Vituity. Dmand AI also links Tiffany Cheng to 1 more skilled nursing facility, named with a free account.

See all 4 affiliations for Tiffany Cheng

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

Dmand AI tracks the EHR system at Tiffany Lillian Cheng's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Tiffany Cheng practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
San Mateo Medical CenterAvailable with a free account
+2 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 Tiffany Cheng practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across County of San Mateo, California and 6.2K+ hospitals, with verified contacts in the same login.

Tiffany Lillian Cheng is one of 7,423 emergency medicine physicians in California

Emergency medicine is Tiffany Cheng's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Tiffany Cheng is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Tiffany Cheng's licenses on file in 2 states: California and Northern Mariana Islands.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A153486 · 2018 to 2026 · taxonomy 207P00000X
  • Northern Mariana Islands license2020 to 2022

Emergency medicine physicians near Tiffany Cheng

Counts of emergency medicine physicians 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

Tiffany Lillian Cheng billed Medicare for 75 services in 2024

CMS data shows 75 Medicare services from Tiffany Cheng across 3 procedure codes in 2024, for 72 Medicare patients. Medicare paid $7,692 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202475
Medicare patients72
Paid by Medicare$7,692
Procedure codes3

Tiffany Cheng's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 782024: 6023%
Tests and treatments
2023: 122024: 1525%

Tiffany Cheng compared with the California median for emergency medicine physicians, 2024

  • Tiffany Cheng
  • California median
Medicare services
75vs 26572% below
Medicare patients
72vs 24370% below
Part D claims
13vs 6279% below

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Tiffany Cheng'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 Tiffany Cheng

Need commercial claims for Tiffany Cheng?

Medicare shows one payer. Book a meeting to get commercial claims data for Tiffany Cheng and other emergency medicine physicians in California.

Book a meeting

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

Tiffany Lillian Cheng treated 72 Medicare patients in 2024, average age 68

CMS counts 72 Medicare patients who saw Tiffany Cheng in 2024. The largest group is 65 to 74, with 33 patients. 75% of them have high blood pressure, and 58% have high cholesterol. Their average risk score is 1.77, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Tiffany Cheng's median patient age at 39, with 53% women.

Medicare patients, 202472
Average age68
Average risk score1.77

Tiffany Cheng's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Tiffany Cheng's Medicare patients by sex, 2024

  • Women3853%
  • Men3447%

Chronic conditions among Tiffany Cheng's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol58%
  3. Diabetes39%
  4. Mood disorders38%
  5. Anxiety36%
  6. Depression35%
  7. Arthritis33%
  8. Chronic kidney disease28%

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

Tiffany Cheng's patients across all payers

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

Patient panel by age, all payers

Median age 39

Patient panel by sex, all payers

  • Women53%
  • Men46%

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

Tiffany Lillian Cheng wrote 81 Medicare Part D claims in 2024

In 2024, Tiffany Cheng wrote 81 Medicare Part D claims for 60 patients. 90% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $80 in total drug cost.

Part D claims, 202481
Drugs named by CMS1
Total drug cost$80
Part D patients60

Tiffany Cheng's Part D claims by kind of drug, 2024

  • Generic73 claims90%
  • Brand-name and other8 claims10%

Tiffany Cheng'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 Tiffany Cheng's Part D claims, 2024

  • Antibiotics30%24 of 81 claims

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

See all prescribing by Tiffany Cheng

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

Tiffany Lillian Cheng scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Tiffany Cheng for performance year 2024, reported as part of a group. Tiffany Cheng accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Tiffany Cheng's MIPS scores, performance year 2024

  • 97of 100Final score
  • 90of 100Quality
  • 40of 100Improvement Activities
  • 78of 100Cost

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

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

For MedTech and pharma teams

Find emergency medicine physicians like Tiffany Cheng 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.

Tiffany Lillian Cheng has 6 publications on record

Dmand AI links 6 papers to Tiffany Cheng, published from 2011 to 2015. 2013 was the busiest year, with 3. The most frequent topics are Chondrogenesis, Cartilage, Articular and Cattle. Tiffany Cheng has published most often in J Orthop Res. Tiffany Cheng's most frequent co-authors are David M. Jablons, MD, Alfred C. Kuo, MD and Natalie Shaubie Lui, MD.

Papers6
Years published2011 to 2015

Tiffany Cheng's papers by year, 2011 to 2015

Topics Tiffany Cheng writes about most

  • Chondrogenesis
  • Cartilage, Articular
  • Cattle
  • Cell Differentiation
  • Cell Line, Tumor
  • Cell Proliferation
  • Cells, Cultured
  • Chondrocytes

Tiffany Cheng's most frequent co-authors

Recent publications by Tiffany Cheng

See all 6 publications and co-authors

See who Tiffany Cheng researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Tiffany Cheng works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

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

Tiffany Lillian Cheng graduated from WashU Medicine

Tiffany Cheng graduated from WashU Medicine in 2016.

  1. Medical schoolWashU Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Tiffany Lillian Cheng accepts plans from 3 insurance carriers

Tiffany Cheng is in network with 3 carriers, including United Healthcare, CMS Medicare and DentaQuest. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • United Healthcare
  • CMS Medicare
  • DentaQuest

Plan types Tiffany Cheng accepts, by number of carriers

  1. Medicare2
  2. HMO1
  3. POS1
  4. PPO1

Source: Dmand AI Insurance Network Data

Sources for Tiffany Lillian Cheng'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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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 Tiffany Lillian Cheng

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

What is Tiffany Lillian Cheng's NPI number?

Tiffany Lillian Cheng's NPI number is 1932561396. It was assigned on March 24, 2016, and it is active in the NPI Registry.

What does Tiffany Lillian Cheng specialize in?

Tiffany Lillian Cheng is an emergency medicine physician in San Mateo, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Tiffany Lillian Cheng practice?

Tiffany Cheng practices at 222 W 39th Ave, San Mateo, CA 94403. Tiffany Cheng's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. Dmand AI also links Tiffany Cheng to 1 skilled nursing facility.

What is Tiffany Lillian Cheng's office phone number?

The practice phone on file for Tiffany Cheng is (650) 573-2222.

What is Tiffany Lillian Cheng's medical license number?

Tiffany Cheng holds California license A153486, one of the licenses on file in 2 states.

Which states has Tiffany Lillian Cheng been licensed in?

Dmand AI has state licenses on file for Tiffany Cheng in California (2018 to 2026) and Northern Mariana Islands (2020 to 2022).

Which hospitals is Tiffany Lillian Cheng affiliated with?

Tiffany Cheng practices at San Mateo Medical Center in San Mateo, California. Tiffany Cheng is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights.

What medical group is Tiffany Lillian Cheng part of?

Tiffany Cheng is linked to Vituity.

Does Tiffany Lillian Cheng accept Medicare?

Yes. CMS data shows Tiffany Cheng billed Medicare for 75 services in 2024, and Tiffany Cheng accepts Medicare assignment.

What is Tiffany Lillian Cheng's MIPS score?

Tiffany Cheng's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Tiffany Lillian Cheng see?

CMS counts 72 Medicare patients who saw Tiffany Cheng in 2024, with an average age of 68.

Is Tiffany Lillian Cheng board certified?

Yes. Tiffany Cheng is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Tiffany Lillian Cheng bill to Medicare?

In 2024, Tiffany Cheng's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and heart test or procedure (93010).

Where did Tiffany Lillian Cheng go to medical school?

Tiffany Cheng graduated from WashU Medicine in 2016.

What drugs does Tiffany Lillian Cheng prescribe most?

In 2024 Medicare Part D data, Tiffany Cheng's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass.

How long has Tiffany Lillian Cheng been practicing?

Tiffany Cheng graduated from medical school in 2016, 10 years ago.

Does Tiffany Lillian Cheng do research?

Dmand AI links 6 publications to Tiffany Cheng, published from 2011 to 2015.

Who does Tiffany Lillian Cheng publish with?

Tiffany Cheng's most frequent co-authors are David M. Jablons, MD (3 shared papers), Alfred C. Kuo, MD (3 shared papers) and Natalie Shaubie Lui, MD (3 shared papers).

What insurance does Tiffany Lillian Cheng accept?

Tiffany Cheng is in network with 3 carriers, including United Healthcare, CMS Medicare and DentaQuest. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

Selling to emergency medicine practices?

See emergency medicine physicians 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)