Kweku Hayfron, M.D., M.S.
Internal Medicine Physician · Dublin, CA
Kweku Hayfron, M.D., M.S. is an internal medicine physician with a practice address in Dublin, California, and NPI 1932541448, issued on Jul 25, 2013. Check the license (California A134874, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kweku Hayfron
- Credential
- M.D., M.S.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A134874 CA
084319 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4050 Dublin Blvd, Dublin, CA 94568
- Phone
- (925) 875-6100
- Enumerated
- Jul 25, 2013
- Record last updated
- Jun 8, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160909002122); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4050 Dublin Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carla Antypas, DOFamily Medicine Physician1063096113
Verify Kweku Hayfron in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134874Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,509 Medicare Part D claims for 175 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 160 claims were for opioids.
Most prescribed
- Atorvastatin Calcium70 claims
- Amlodipine Besylate56 claims
- Metformin Hcl52 claims
- Oxycodone Hcl52 claims
- Omeprazole49 claims
- Levothyroxine Sodium43 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationDublin, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kweku Hayfron among 17,696 internal medicine physician records in California
Kweku Hayfron, M.D., M.S. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 internal medicine physician records list a practice address in Dublin
They are 20 of the 2,148 NPPES records with a practice address in Dublin, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Dublin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kim Benson, M.D.Dublin, CA 945681801948633
- Bryan Chin, DODublin, CA 945681972756237
- Tulika Ghosh, MDDublin, CA 945681902102726
- Kanwalpreet Hundal, MDDublin, CA 945681386828242
- Andal Kadambi, MDDublin, CA 945681821150863
- Damayanthi Kalisetti, MDDublin, CA 945681205813532
- Jacqueline Keedy, M.D.Dublin, CA 945681760612931
- Natasha Phan, MDDublin, CA 945681669406005
Common questions
What is Kweku Hayfron, M.D., M.S.'s NPI number?
Kweku Hayfron, M.D., M.S.'s National Provider Identifier (NPI) is 1932541448, issued on Jul 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Kweku Hayfron, M.D., M.S. located?
The NPPES record lists a practice address at 4050 Dublin Blvd, Dublin, CA, 94568. Phone: (925) 875-6100. Providers update this record themselves, so call before visiting.
How can I verify Kweku Hayfron, M.D., M.S.'s license?
NPPES lists California license number A134874, 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 Kweku Hayfron, M.D., M.S. prescribe under Medicare Part D?
In 2024, Kweku Hayfron, M.D., M.S. had 1,509 Medicare Part D claims for 175 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.