Amer A. Budayr, MD
Endocrinology, Diabetes & Metabolism Physician · Castro Valley, CA
Amer A. Budayr, MD is an endocrinology, diabetes & metabolism physician with a practice address in Castro Valley, California, and NPI 1700958451, issued on Nov 15, 2006. Check the license (California A41703, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Amer A. Budayr
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A41703 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20700 Lake Chabot RD Ste 107, Castro Valley, CA 94546
- Phone
- (925) 386-6001
- Enumerated
- Nov 15, 2006
- Record last updated
- Apr 4, 2023
- Medicaid ID
- 00A417030 CA
- Medicare enrollment
- Enrolled (PECOS I20110504000661); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 20700 Lake Chabot RD Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Liu, PAPhysician Assistant1295431088
Verify Amer A. Budayr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A41703Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
137 Medicare Part D claims for 15 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Metformin Hcl32 claims
- Ozempic31 claims
- Jardiance11 claims
- Levothyroxine Sodium11 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.
Amer A. Budayr among 1,131 endocrinology, diabetes & metabolism physician records in California
Amer A. Budayr, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1982 · median 2003 among the 779 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Castro Valley → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Jennifer CaseyCastro Valley, CA 945461750524575
- Nalurporn Chokrungvaranon, M.D.Castro Valley, CA 945461922209436
- Samuel Fantaye, MDCastro Valley, CA 945461336677186
- Farnoosh FarrokhiCastro Valley, CA 945461467618454
- Susana Harbutt, M.D.Castro Valley, CA 945461588007678
- Marcia Peck, MDCastro Valley, CA 945461376569475
- Stanley Tan, MDCastro Valley, CA 945461396747721
- Frank Hsu, M.D.Hayward, CA 945411295800365
Common questions
What is Amer A. Budayr, MD's NPI number?
Amer A. Budayr, MD's National Provider Identifier (NPI) is 1700958451, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Amer A. Budayr, MD located?
The NPPES record lists a practice address at 20700 Lake Chabot RD Ste 107, Castro Valley, CA, 94546. Phone: (925) 386-6001. Providers update this record themselves, so call before visiting.
How can I verify Amer A. Budayr, MD's license?
NPPES lists California license number A41703, 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 Amer A. Budayr, MD prescribe under Medicare Part D?
In 2024, Amer A. Budayr, MD had 137 Medicare Part D claims for 15 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.