Samuel Hailemariam Fantaye, MD
Endocrinology, Diabetes & Metabolism Physician · Castro Valley, CA
Samuel Hailemariam Fantaye, MD is an endocrinology, diabetes & metabolism physician with a practice address in Castro Valley, California, and NPI 1336677186, issued on May 24, 2017. Check the license (California A169452, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Hailemariam Fantaye
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A169452 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20642 John Dr, Castro Valley, CA 94546
- Phone
- (510) 857-2559
- Enumerated
- May 24, 2017
- Record last updated
- Oct 8, 2024
- Medicare enrollment
- Enrolled (PECOS I20241226001175); accepts 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 20642 John Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Albert Ahoy, PA-CPhysician Assistant1356878136
- Ana BermudezObstetrics & Gynecology Physician1679079065
- Kalaokalani Chandler, M.D.Obstetrics & Gynecology Physician1164459947
- Shiven Chaudhry, MDInternal Medicine Physician1528594801
- Corina Clark, P.A.Physician Assistant1720480049
- Ashley Etchison, MDDiagnostic Radiology Physician1962907840
Verify Samuel Hailemariam Fantaye in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A169452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
915 Medicare Part D claims for 214 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Levothyroxine Sodium133 claims
- Mounjaro108 claims
- Metformin Hcl75 claims
- Ozempic60 claims
- Rybelsus32 claims
- Trulicity31 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: $71.19
2 payments; by number, the most common kind was food and beverage; the largest payer was Radius Health, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Morehouse Healthcare, Inc.Atlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Hailemariam Fantaye among 1,131 endocrinology, diabetes & metabolism physician records in California
Samuel Hailemariam Fantaye, 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 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2004 · median 2003 among the 779 with a school on file
- Record last updated2024 · 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
- Amer Budayr, MDCastro Valley, CA 945461700958451
- Jennifer CaseyCastro Valley, CA 945461750524575
- Nalurporn Chokrungvaranon, M.D.Castro Valley, CA 945461922209436
- 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 Samuel Hailemariam Fantaye, MD's NPI number?
Samuel Hailemariam Fantaye, MD's National Provider Identifier (NPI) is 1336677186, issued on May 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Hailemariam Fantaye, MD located?
The NPPES record lists a practice address at 20642 John Dr, Castro Valley, CA, 94546. Phone: (510) 857-2559. Providers update this record themselves, so call before visiting.
How can I verify Samuel Hailemariam Fantaye, MD's license?
NPPES lists California license number A169452, 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 Samuel Hailemariam Fantaye, MD prescribe under Medicare Part D?
In 2024, Samuel Hailemariam Fantaye, MD had 915 Medicare Part D claims for 214 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.