William Will Nham
Adult Medicine Physician · San Jose, CA
William Will Nham is an adult medicine physician with a practice address in San Jose, California, and NPI 1265061154, issued on Apr 3, 2020. Check the license (California 186953, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Will Nham
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License numbers
- 186953 CA
25600 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1870 Lundy Ave, San Jose, CA 95131
- Phone
- (415) 391-9686
- Enumerated
- Apr 3, 2020
- Record last updated
- Jul 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20240808004471); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 1870 Lundy Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Will Nham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 186953Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average adult medicine physician in 2024
1,974 Medicare Part D claims for 325 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium192 claims
- Losartan Potassium186 claims
- Amlodipine Besylate167 claims
- Rosuvastatin Calcium97 claims
- Alendronate Sodium66 claims
- Metformin Hcl60 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $23.01
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 664 providers of this specialty with any payment received $1,405.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North East Medical ServicesLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Will Nham among 386 adult medicine physician records in California
William Will Nham is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 84% of them.
- NPI issued2020 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2019 · median 2005 among the 187 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in San Jose → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Lien-Huong Nguyen, MDSan Jose, CA 951191841222197
- Johnny PhuSan Jose, CA 951191437682531
- Kindchia WongSan Jose, CA 951191326741679
- Pacifico Santos, M.D.San Jose, CA 951161265547608
- Hung Trinh, M.D.,San Jose, CA 951161558336743
- Robert Letamendi, M.D.Watsonville, CA 950761356341671
- Sharon Gehringer, PA-CSanta Cruz, CA 950601053423608
- James Sepiol, M.D.Stockton, CA 952031780857474
Common questions
What is William Will Nham's NPI number?
William Will Nham's National Provider Identifier (NPI) is 1265061154, issued on Apr 3, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William Will Nham located?
The NPPES record lists a practice address at 1870 Lundy Ave, San Jose, CA, 95131. Phone: (415) 391-9686. Providers update this record themselves, so call before visiting.
How can I verify William Will Nham's license?
NPPES lists California license number 186953, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Will Nham prescribe under Medicare Part D?
In 2024, William Will Nham had 1,974 Medicare Part D claims for 325 beneficiaries; the average among adult medicine physician prescribers was 3,002. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.