NPPES file of Aug 9, 2026

Begum Serena Sezer, MD

Internal Medicine Physician · Santa Monica, CA

Begum Serena Sezer, MD is an internal medicine physician with a practice address in Santa Monica, California, and NPI 1891157939, issued on Mar 28, 2016. Check the license (California A154428, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891157939
Name
Begum Serena Sezer
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A154428 CA
Self-reported in NPPES; status is on the state search
Practice location
1245 16TH St Ste 125, Santa Monica, CA 90404
Phone
(310) 315-8900
Enumerated
Mar 28, 2016
Record last updated
Jun 30, 2026
Medicare enrollment
Enrolled (PECOS I20250408003443); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 1245 16TH St Ste 125

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nupur Agrawal, M.D.Internal Medicine Physician1821409822
  2. Oluwatofehinti Akande, MDPediatrics Physician1225659089
  3. Cindy Akin, LCSWClinical Social Worker1528885746
  4. Dominique DabijaEmergency Medicine Physician1386106102
  5. Thomas ElliottPediatrics Physician1609372606
  6. Sergio EscobedoPsychologist1518637792

Verify Begum Serena Sezer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A154428    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Dignity Health Medical Group Nevada LLCLas Vegas, NV

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Begum Serena Sezer among 17,696 internal medicine physician records in California

Begum Serena Sezer, MD 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 2016, is newer than 79% of them.

  • NPI issued2016 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 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).

168 internal medicine physician records list a practice address in Santa Monica

They are 168 of the 5,151 NPPES records with a practice address in Santa Monica, and 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Santa Monica → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Ashley, MDSanta Monica, CA 904041780628487
  2. Mitchell Becker, M.D.Santa Monica, CA 904041922033935
  3. Chiquita Flowers, M.D.Santa Monica, CA 904041972595700
  4. Glenn Gorlitsky, M.D.Santa Monica, CA 904041881625143
  5. Oscar Hernandez, M.D.Santa Monica, CA 904041699706952
  6. Mark McGowan, MDSanta Monica, CA 904041720015902
  7. Alex Messina, MDSanta Monica, CA 904041902867823
  8. Mark Nachman, MDSanta Monica, CA 904041104803683

Common questions

What is Begum Serena Sezer, MD's NPI number?

Begum Serena Sezer, MD's National Provider Identifier (NPI) is 1891157939, issued on Mar 28, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Begum Serena Sezer, MD located?

The NPPES record lists a practice address at 1245 16TH St Ste 125, Santa Monica, CA, 90404. Phone: (310) 315-8900. Providers update this record themselves, so call before visiting.

How can I verify Begum Serena Sezer, MD's license?

NPPES lists California license number A154428, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.