NPPES file of Aug 9, 2026

Naim Masud Basel, D.O.

Obstetrics & Gynecology Physician · Merced, CA

Naim Masud Basel, D.O. is an obstetrics & gynecology physician with a practice address in Merced, California, and NPI 1043548639, issued on Nov 19, 2009. Check the license (California 20A10456, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043548639
Name
Naim Masud Basel
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
20A10456 CA
Self-reported in NPPES; status is on the state search
Practice location
797 W Childs Ave, Merced, CA 95341
Phone
(209) 383-5871
Enumerated
Nov 19, 2009
Record last updated
Apr 9, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(209) 383-1402
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 797 W Childs Ave

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

  1. Serene Alexander, D.O.Obstetrics & Gynecology Physician1841555109
  2. Melody Castillo, CNM, FNPFamily Nurse Practitioner1093120099
  3. Erica Choi, WHNPWomen's Health Nurse Practitioner1205487774
  4. Monique Godbold Sanchez, M.D.Family Medicine Physician1528045317
  5. Erlinda MaglibaNurse Practitioner1255748687
  6. Laurie Mata, WHNPWomen's Health Nurse Practitioner1528383411

Verify Naim Masud Basel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10456
    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

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80% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

33 Medicare Part D claims for 21 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Naim Basel33
  2. Specialty average165

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.

Naim Masud Basel among 5,088 obstetrics & gynecology physician records in California

Naim Masud Basel, D.O. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.

  • NPI issued2009 · 66% of these records are older, 30% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2013 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Serene Alexander, D.O.Merced, CA 953411841555109
  2. Yasser Ratl Mrad, MDMerced, CA 953411003042987
  3. George Savage, M.D.Merced, CA 953411063577823
  4. George Alkhouri, MDMerced, CA 953401881862209
  5. Eileen Hou, M.D.Merced, CA 953401558715508
  6. Brian Moore, MDMerced, CA 953401992817472
  7. Kristina Sogocio, MDMerced, CA 953401497950448
  8. Jon Lee, MDManteca, CA 953371770661589

Common questions

What is Naim Masud Basel, D.O.'s NPI number?

Naim Masud Basel, D.O.'s National Provider Identifier (NPI) is 1043548639, issued on Nov 19, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Naim Masud Basel, D.O. located?

The NPPES record lists a practice address at 797 W Childs Ave, Merced, CA, 95341. Phone: (209) 383-5871. Providers update this record themselves, so call before visiting.

How can I verify Naim Masud Basel, D.O.'s license?

NPPES lists California license number 20A10456, 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 Naim Masud Basel, D.O. prescribe under Medicare Part D?

In 2024, Naim Masud Basel, D.O. had 33 Medicare Part D claims for 21 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.