Sefik Abdulhayoglu, MD
Internal Medicine Physician · Chelsea, MA
Sefik Abdulhayoglu, MD is an internal medicine physician with a practice address in Chelsea, Massachusetts, and NPI 1659358166, issued on Dec 27, 2005. Check the license (Massachusetts 34674, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Sefik Abdulhayoglu
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 34674 MA
Self-reported in NPPES; status is on the state search - Practice location
- 383 Washington Ave, Chelsea, MA 02150
- Phone
- (618) 884-3385
- Enumerated
- Dec 27, 2005
- Entity
- Type 1 · individual
Verify Sefik Abdulhayoglu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 34674Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
36 internal medicine physician records list a Chelsea practice address
They are 36 of the 998 NPPES records with a Chelsea practice address, and 7,865 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 36 in Chelsea → All 7,865 in Massachusetts → Every provider in Chelsea →
Other internal medicine physician records in Massachusetts
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- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Salah Abdelgadir, MDBoston, MA1891280954
- Mahmoud Abdelghany, M.D.Springfield, MA1134479629
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Sefik Abdulhayoglu, MD's NPI number?
Sefik Abdulhayoglu, MD's National Provider Identifier (NPI) is 1659358166, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Sefik Abdulhayoglu, MD located?
The NPPES record lists a practice address at 383 Washington Ave, Chelsea, MA, 02150. Phone: (618) 884-3385. Providers update this record themselves, so call before visiting.
How can I verify Sefik Abdulhayoglu, MD's license?
NPPES lists Massachusetts license number 34674, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.