Dr. Simon Anthony Humphries, MD

  • Los Gatos, CA
  • Internist
NPI1023149440PAC ID1254510530
Medicare services, 2024
1,843
Medicare patients, 2024
333
Part D claims, 2024
2,602
MIPS score, 2024
24
Hospital affiliations
1
Practice address
700 W Parr Ave Ste A, Los Gatos, CA 95032
Practice phone
Call (408) 871-3400
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

EL CAMINO HEALTH MEDICAL NETWORK, LLC

Urgent Care - Additional Location · Los Gatos, California

See all 7 affiliations

Find Dr. Humphries' 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. Simon Anthony Humphries is an internist in Los Gatos, California

Dr. Humphries practices at EL CAMINO HEALTH MEDICAL NETWORK, LLC in Los Gatos, California.

Dr. Humphries' NPI, 1023149440, was assigned on March 8, 2007. Dr. Humphries graduated from Medical College Of Wisconsin in 1987. Dr. Humphries' California license number on file is G067109.

NPI and contact details
Medicare PAC ID
1254510530
NPI enumeration date
March 8, 2007
NPI status
Active
Offers telehealth
Yes
Practice phone
(408) 871-3400
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
65
Medical school graduation
1987

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

Dr. Simon Anthony Humphries practices at 2 locations in Los Gatos, California

Dr. Humphries' primary practice is EL CAMINO HEALTH MEDICAL NETWORK, LLC, at 700 W Parr Ave Ste A, Los Gatos, CA 95032. The practice phone is (408) 871-3400. Dr. Humphries also practices at El Camino Health Medical Network, 973 University Ave, Los Gatos, CA 95032.

  • EL CAMINO HEALTH MEDICAL NETWORK, LLCPrimary
    700 W Parr Ave Ste A, Los Gatos, CA 95032Phone(408) 871-3400
  • El Camino Health Medical Network
    973 University Ave, Los Gatos, CA 95032 · Santa Clara CountyPhone(408) 871-3400

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data

Dr. Simon Anthony Humphries is affiliated with 6 sites of care and 1 medical group

Dr. Humphries' primary practice is EL CAMINO HEALTH MEDICAL NETWORK, LLC in Los Gatos, California. Dr. Humphries is also affiliated with El Camino Health - Mountain View Hospital. The medical group on file is El Camino Health Medical Network. Dmand AI also links Dr. Humphries to 2 more home health agencies and 2 urgent care centers, each named with a free account. Dr. Humphries' employer is on file too: an urgent care center.

See all 7 affiliations for Dr. Humphries

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Simon Anthony Humphries' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Humphries practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
EL CAMINO HEALTH MEDICAL NETWORK, LLCAvailable with a free account
+5 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 site where Dr. Humphries practices

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

Dr. Simon Anthony Humphries is one of 16,751 internists in California

Internal medicine is Dr. Humphries' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Humphries is board certified in internal medicine by the American Board of Internal Medicine. Dr. Humphries has a license on file in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G067109 · 1989 to 2025 · taxonomy 207R00000X

Clinical focus

Dmand AI lists acid reflux, acute mini-stroke (TIA), acute sinusitis, acute skin infection, adjustment disease, alzheimer's disease, anemia and aneurysm among the conditions Dr. Humphries treats.

Internists near Dr. Humphries

Counts of internists 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. Simon Anthony Humphries billed Medicare for 1,843 services in 2024

CMS data shows 1,843 Medicare services from Dr. Humphries across 19 procedure codes in 2024, for 333 Medicare patients. Medicare paid $171,261 for them.

Medicare services, 20241,843
Medicare patients333
Paid by Medicare$171,261
Procedure codes19

Dr. Humphries' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,7852024: 1,34225%
Other services
2023: 1782024: 19912%
Tests and treatments
2023: 1942024: 1961%
Surgery
2023: 492024: 106116%

Where Dr. Humphries' Medicare services took place, 2024

  • In an office1,52683%
  • In a facility31717%

Dr. Humphries compared with the California median for internists, 2024

  • Dr. Humphries
  • California median
Medicare services
1,843vs 3615.1 times
Medicare patients
333vs 1512.2 times
Part D claims
2,149vs 4215.1 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Humphries' 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. Humphries

Need commercial claims for Dr. Humphries?

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

Book a meeting

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

Dr. Simon Anthony Humphries treated 333 Medicare patients in 2024, average age 80

CMS counts 333 Medicare patients who saw Dr. Humphries in 2024. The largest group is 85 and over, with 115 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.33, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Humphries' median patient age at 70, with 38% women.

Medicare patients, 2024333
Average age80
Average risk score1.33

Dr. Humphries' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Humphries' Medicare patients by sex, 2024

  • Women16650%
  • Men16750%

Chronic conditions among Dr. Humphries' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis47%
  4. Ischemic heart disease36%
  5. Diabetes32%
  6. Osteoporosis29%
  7. Cancer26%
  8. Mood disorders25%

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

Dr. Humphries' patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women38%
  • Men61%

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

Dr. Simon Anthony Humphries wrote 2,602 Medicare Part D claims in 2024

In 2024, Dr. Humphries wrote 2,602 Medicare Part D claims for 286 patients. 88% of them were for generic drugs. CMS names the drug for 2,149 of them, across 66 drugs with 11 or more claims each, at $120,353 in total drug cost. In 2023, CMS named 3,146 claims across 82 drugs.

Part D claims, 20242,602
Drugs named by CMS66
Total drug cost$120,353
Part D patients286

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

  • Generic2,279 claims88%
  • Brand-name312 claims12%
  • Other11 claims0%

Dr. Humphries' 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. Humphries' Part D claims, 2024

  • Opioids2%47 of 2,602 claims
  • Antibiotics5%141 of 2,602 claims
  • Antipsychotics, patients 65 and over2%48 of 2,602 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: 3,1462024: 2,14932%

Drugs named by CMS: 66 in 2024, 82 in 2023.

See all prescribing by Dr. Humphries

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. Simon Anthony Humphries scored 24 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 24 out of 100 for Dr. Humphries for performance year 2024, reported individually. CMS lists Dr. Humphries as offering telehealth. CMS counts 82 procedures of removal of skin lesions by Dr. Humphries, more than 74% of the clinicians it reports for that procedure.

Offers telehealth
Yes

Dr. Humphries' MIPS scores, performance year 2024

  • 24of 100Final score
  • 0of 100Quality
  • 0of 100Improvement Activities
  • 80of 100Cost

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

Where Dr. Humphries ranks in Medicare procedure volume

Removal of skin lesions
74th percentile82 procedures

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

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 internists like Dr. Humphries 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. Simon Anthony Humphries received $2,415 in industry payments from 2016 to 2025

CMS Open Payments shows 138 general payments to Dr. Humphries from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $338.

General payments to Dr. Humphries by program year, 2016 to 2025

Companies that paid Dr. Humphries the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Humphries

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

Dr. Simon Anthony Humphries graduated from Medical College Of Wisconsin

Dr. Humphries graduated from Medical College Of Wisconsin in 1987.

  1. Medical schoolMedical College Of Wisconsin
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Simon Anthony Humphries accepts plans from 6 insurance carriers

Dr. Humphries is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Humphries accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Simon Anthony Humphries'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation 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)
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. Simon Anthony Humphries

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. Simon Anthony Humphries' NPI number?

Dr. Simon Anthony Humphries' NPI number is 1023149440. It was assigned on March 8, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Simon Anthony Humphries?

Dr. Simon Anthony Humphries is an internist in Los Gatos, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Simon Anthony Humphries practice?

Dr. Humphries practices at 700 W Parr Ave Ste A, Los Gatos, CA 95032. Dr. Humphries also practices at 973 University Ave, Los Gatos, CA 95032. Dr. Humphries' primary practice is EL CAMINO HEALTH MEDICAL NETWORK, LLC in Los Gatos, California. Dmand AI also links Dr. Humphries to 2 home health agencies and 2 urgent care centers.

What is Dr. Simon Anthony Humphries' office phone number?

The practice phone on file for Dr. Humphries is (408) 871-3400.

What is Dr. Simon Anthony Humphries' medical license number?

Dr. Humphries' California license number on file is G067109.

Which hospitals is Dr. Simon Anthony Humphries affiliated with?

Dr. Humphries is affiliated with El Camino Health - Mountain View Hospital.

What medical group is Dr. Simon Anthony Humphries part of?

Dr. Humphries is linked to El Camino Health Medical Network.

Does Dr. Simon Anthony Humphries accept Medicare?

Yes. CMS data shows Dr. Humphries billed Medicare for 1,843 services in 2024.

Does Dr. Simon Anthony Humphries offer telehealth?

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

What is Dr. Simon Anthony Humphries' MIPS score?

Dr. Humphries' MIPS final score for performance year 2024 is 24 out of 100, reported individually.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Simon Anthony Humphries see?

CMS counts 333 Medicare patients who saw Dr. Humphries in 2024, with an average age of 80.

Is Dr. Simon Anthony Humphries board certified?

Yes. Dr. Humphries is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Simon Anthony Humphries bill to Medicare?

In 2024, Dr. Humphries' most billed Medicare services were office visit, established patient (99214), infusion or chemotherapy administration (96372) and hospital inpatient care (99232).

Where did Dr. Simon Anthony Humphries go to medical school?

Dr. Humphries graduated from Medical College Of Wisconsin in 1987.

What drugs does Dr. Simon Anthony Humphries prescribe most?

In 2024 Medicare Part D data, Dr. Humphries' most prescribed drugs by claims were Atorvastatin Calcium, Trazodone HCl and Levothyroxine Sodium.

Has Dr. Simon Anthony Humphries received payments from drug or device companies?

CMS Open Payments shows $2,415 in general payments to Dr. Humphries from 21 companies from 2016 to 2025. The largest total came from Sunovion Pharmaceuticals Inc.

How long has Dr. Simon Anthony Humphries been practicing?

Dr. Humphries graduated from medical school in 1987, 39 years ago.

What insurance does Dr. Simon Anthony Humphries accept?

Dr. Humphries is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

Selling to internal medicine practices?

See internists 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)