NPPES file of Aug 9, 2026

Aafreen Ayesha Mahmood, MD

Psychiatry Physician · Orange, CA

Aafreen Ayesha Mahmood, MD is a psychiatry physician with a practice address in Orange, California, and NPI 1306540653, issued on Mar 29, 2023. Check the license (California A203961, 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
1306540653
Name
Aafreen Ayesha Mahmood
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A203961 CA
Self-reported in NPPES; status is on the state search
Practice location
3800 W Chapman Ave Ste 500, Orange, CA 92868
Phone
(714) 459-5902
Enumerated
Mar 29, 2023
Record last updated
Nov 4, 2025
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 3800 W Chapman Ave Ste 500

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

  1. Fatimah Aftab, MDStudent in an Organized Health Care Education/Training Program1831031970
  2. Jacob AlbrittonStudent in an Organized Health Care Education/Training Program1780438820
  3. Christy Alhannat, MDStudent in an Organized Health Care Education/Training Program1003758608
  4. Alvaro Alvarez, MDPsychiatry Physician1356196893
  5. Lydia AnnPsychiatry Physician1316433303
  6. Austin BuckStudent in an Organized Health Care Education/Training Program1043064728

Verify Aafreen Ayesha Mahmood in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A203961
    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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98% fewer Medicare Part D claims than the average psychiatry physician in 2024

18 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Aafreen Mahmood18
  2. Specialty average1,000

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.

Aafreen Ayesha Mahmood among 8,673 psychiatry physician records in California

Aafreen Ayesha Mahmood, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 96% of them.

  • NPI issued2023 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

116 psychiatry physician records list a practice address in Orange

They are 116 of the 13,245 NPPES records with a practice address in Orange, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Daniel Chueh, M.D.Orange, CA 928681174589642
  2. K De Silva, MDOrange, CA 928681992730170
  3. Constance De Silva, MDOrange, CA 928681912922634
  4. Lianjie Du, M.D.Orange, CA 928681255331385
  5. Gaurav Gandotra, MDOrange, CA 928681386617421
  6. Carla Hammond, M.D.Orange, CA 928681407889355
  7. Alan Hanft, M.D.Orange, CA 928681376599076
  8. Joshua Israel, MDOrange, CA 928681689628265

Common questions

What is Aafreen Ayesha Mahmood, MD's NPI number?

Aafreen Ayesha Mahmood, MD's National Provider Identifier (NPI) is 1306540653, issued on Mar 29, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Aafreen Ayesha Mahmood, MD located?

The NPPES record lists a practice address at 3800 W Chapman Ave Ste 500, Orange, CA, 92868. Phone: (714) 459-5902. Providers update this record themselves, so call before visiting.

How can I verify Aafreen Ayesha Mahmood, MD's license?

NPPES lists California license number A203961, 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 Aafreen Ayesha Mahmood, MD prescribe under Medicare Part D?

In 2024, Aafreen Ayesha Mahmood, MD had 18 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.