NPPES file of Aug 9, 2026

Nayela Naz Keen, M.D.

Diagnostic Radiology Physician · San Francisco, CA

Nayela Naz Keen, M.D. is a diagnostic radiology physician with a practice address in San Francisco, California, and NPI 1285763433, issued on Mar 5, 2007. Check the license (California IN PROCESS, 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
1285763433
Name
Nayela Naz Keen
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
IN PROCESS CA
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 443-5534
Enumerated
Mar 5, 2007
Record last updated
Jan 10, 2022
Medicare enrollment
Enrolled (PECOS I20110509000547); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 2005
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 diagnostic radiology physician records → All 4,500 in California → Look up another NPI →

Also registered at 505 Parnassus Ave

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

  1. Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
  2. Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
  3. Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
  4. Abul Abbas, MBBSAnatomic Pathology Physician1881652964
  5. Jesse Abelson, MDInternal Medicine Physician1083843817
  6. Rhonald AbitonaAcute Care Nurse Practitioner1164993473

Verify Nayela Naz Keen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license IN PROCESS    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. Permanente Medical Group IncRedwood City, CA

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

Nayela Naz Keen among 4,500 diagnostic radiology physician records in California

Nayela Naz Keen, M.D. is one of 4,500 diagnostic radiology 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 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 41% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2005 · median 2004 among the 3,130 with a school on file
  • Record last updated2022 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

All 4,500 in California → Every provider in San Francisco → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Ronald Arenson, MDSan Francisco, CA 941431063477750
  2. Diana Baker, M.D.San Francisco, CA 941431790730984
  3. Cynthia Chin, M.D.San Francisco, CA 941431447292404
  4. Rita Freimanis, MDSan Francisco, CA 941431508840802
  5. Charles Gooding, MDSan Francisco, CA 941431497710214
  6. Roy Gordon, M.D.San Francisco, CA 941431881636876
  7. Bonnie Joe, M.D.San Francisco, CA 941431710927314
  8. Theodore Lee, M.D.San Francisco, CA 941431083656193

Common questions

What is Nayela Naz Keen, M.D.'s NPI number?

Nayela Naz Keen, M.D.'s National Provider Identifier (NPI) is 1285763433, issued on Mar 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nayela Naz Keen, M.D. located?

The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 443-5534. Providers update this record themselves, so call before visiting.

How can I verify Nayela Naz Keen, M.D.'s license?

NPPES lists California license number IN PROCESS, 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.