NPPES file of Aug 9, 2026

Nizar Kajani, MD

Anatomic Pathology Physician · Vallejo, CA

Nizar Kajani, MD is an anatomic pathology physician with a practice address in Vallejo, California, and NPI 1255419156, issued on Nov 1, 2006. Check the license (California A50395, 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
1255419156
Name
Nizar Kajani
Credential
MD
Primary taxonomy
Anatomic Pathology Physician 207ZP0101X
License number
A50395 CA
Self-reported in NPPES; status is on the state search
Practice location
975 Sereno Dr, Vallejo, CA 94589
Phone
(707) 651-1000
Enumerated
Nov 1, 2006
Record last updated
Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00A503950 CA
Medicare enrollment
Enrolled (PECOS I20101202001282); accepts Medicare assignment
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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Also registered at 975 Sereno Dr

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

  1. Joel Aandahl, NPAdult Health Nurse Practitioner1891423653
  2. Noman Absar, MDCritical Care Medicine (Internal Medicine) Physician1205908951
  3. Anthony Acquaviva, MDUrology Physician1457439283
  4. Jhonnard James Acuna, CRNACertified Registered Nurse Anesthetist1205997327
  5. Omid AfshariPharmacist1184165391
  6. Eesha AftabStudent in an Organized Health Care Education/Training Program1770421687

Verify Nizar Kajani in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A50395
    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 IncVacaville, CA

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

Anatomic Pathology Physician providers in California

There are 386 anatomic pathology physician records in California.

Other anatomic pathology physician records in California

  1. Abul Abbas, MBBSSan Francisco, CA1881652964
  2. John Abele, MDSacramento, CA1063493625
  3. Mitchell Adachi, MDSan Francisco, CA1720166366
  4. Brad Adler, M.D.Ventura, CA1003979618
  5. Ashna Aggarwal, MDSacramento, CA1235624362
  6. Naoki Akanuma, MD PHDSacramento, CA1881222974
  7. Najeeb Alshak, MDLos Angeles, CA1487721387
  8. Charles Amezcua, M.D.Santa Rosa, CA1245373992
  9. Joseph Anderson, M.D.San Rafael, CA1003002494
  10. Shehla Arain, M.D.Yorba Linda, CA1497927784

Common questions

What is Nizar Kajani, MD's NPI number?

Nizar Kajani, MD's National Provider Identifier (NPI) is 1255419156, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nizar Kajani, MD located?

The NPPES record lists a practice address at 975 Sereno Dr, Vallejo, CA, 94589. Phone: (707) 651-1000. Providers update this record themselves, so call before visiting.

How can I verify Nizar Kajani, MD's license?

NPPES lists California license number A50395, 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.

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.