NPPES file of Aug 9, 2026

Akbar Nassiry, M.D., M.P.H.

Hospitalist Physician · Irvine, CA

Akbar Nassiry, M.D., M.P.H. is a hospitalist physician with a practice address in Irvine, California, and NPI 1003259870, issued on Apr 11, 2013. Check the license (California A125091, 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
1003259870
Name
Akbar Nassiry
Credential
M.D., M.P.H.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
A125091 CA
0101253439 VA
Self-reported in NPPES; status is on the state search
Practice location
4000 Barranca Parkway, Irvine, CA 92604
Phone
(949) 577-0047
Enumerated
Apr 11, 2013
Record last updated
May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(909) 635-6085
Medicare enrollment
Enrolled (PECOS I20140708001043); accepts Medicare assignment
Medical or professional school
Virginia Commonwealth University, School Of Medicine, 2009
Telehealth
Offers telehealth (CMS)
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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Verify Akbar Nassiry in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A125091
    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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2.9 times the Medicare Part D claims of the average hospitalist physician in 2024

1,536 Medicare Part D claims for 182 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Akbar Nassiry1,536
  2. Specialty average521

Most prescribed

  1. Famotidine85 claims
  2. Losartan Potassium69 claims
  3. Atorvastatin Calcium63 claims
  4. Glipizide62 claims
  5. Tamsulosin Hcl51 claims
  6. Levothyroxine Sodium43 claims

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.

Akbar Nassiry among 3,099 hospitalist physician records in California

Akbar Nassiry, M.D., M.P.H. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 56% of them.

  • NPI issued2013 · 56% of these records are older, 39% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2009 · median 2010 among the 2,505 with a school on file
  • Record last updated2020 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Roshny Pattathu, M.D.Irvine, CA 926031154568350
  2. Ilya Yakhnenko, MDWildomar, CA 925951427317460
  3. Ali Ahoui, MDIrvine, CA 926181093964769
  4. Robert Cho, M.D.Irvine, CA 926181760578512
  5. Scott Derkum, MDIrvine, CA 926181588660849
  6. John Dieckhoff, M.D.Irvine, CA 926181700068152
  7. Veejay Geria, M.D.Irvine, CA 926181821193467
  8. Derrick Hong, M.DIrvine, CA 926181124040696

Common questions

What is Akbar Nassiry, M.D., M.P.H.'s NPI number?

Akbar Nassiry, M.D., M.P.H.'s National Provider Identifier (NPI) is 1003259870, issued on Apr 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Akbar Nassiry, M.D., M.P.H. located?

The NPPES record lists a practice address at 4000 Barranca Parkway, Irvine, CA, 92604. Phone: (949) 577-0047. Providers update this record themselves, so call before visiting.

How can I verify Akbar Nassiry, M.D., M.P.H.'s license?

NPPES lists California license number A125091, 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 Akbar Nassiry, M.D., M.P.H. prescribe under Medicare Part D?

In 2024, Akbar Nassiry, M.D., M.P.H. had 1,536 Medicare Part D claims for 182 beneficiaries; the average among hospitalist physician prescribers was 521. 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.