Registry data as of Aug 27, 2026

Humayon Khan, M.D.

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician · Santa Ana, CA

Humayon Khan, M.D. is a hospice and palliative medicine (obstetrics & gynecology) physician with a practice address in Santa Ana, California, and NPI 1609091818, issued on Apr 14, 2007. Check the license (California G74748, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1609091818
Name
Humayon Khan
Credential
M.D.
Primary taxonomy
Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician 207VH0002X
License number
G74748 CA
Self-reported in NPPES; status is on the state search
Practice location
1629 W 17TH St, Santa Ana, CA 92706
Phone
(714) 972-2111
Enumerated
Apr 14, 2007
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 1629 W 17TH St

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

  1. Hossein KaniObstetrics & Gynecology Physician1275665515
  2. Angelita Pezina, N.P.Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician1487876124
  3. Pamela Xandre, NPHospice and Palliative Medicine (Obstetrics & Gynecology) Physician1265626345

Verify Humayon Khan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G74748
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

63% fewer Medicare Part D claims than the average hospice and palliative medicine (obstetrics & gynecology) physician in 2024

59 Medicare Part D claims, against an average of 161 among the 37 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Humayon Khan59
  2. Specialty average161

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.

Industry payments in 2024: $327.64

13 payments, mostly food and beverage; the largest payer was GlaxoSmithKline, LLC.. The 29 providers of this specialty with any payment received $426.43 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Humayon Khan$327.64
  2. Specialty average$426.43

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Hospice and Palliative Medicine (Obstetrics & Gynecology) Physician providers in California

There are 17 hospice and palliative medicine (obstetrics & gynecology) physician records in California.

Other hospice and palliative medicine (obstetrics & gynecology) physician records in California

  1. Linda Carr, N.P.Santa Ana, CA1174744676
  2. Linda Dunzo, N.P.Santa Ana, CA1003037631
  3. Che-Yang Huang, M.D.Alhambra, CA1487862033
  4. Neda Mahoney, M.D.Chico, CA1477765949
  5. Ronald Pennington, M.D.Newport Beach, CA1992916167
  6. Angelita Pezina, N.P.Santa Ana, CA1487876124
  7. Maya Ricci, FNPVisalia, CA1417169897
  8. Michael Rotas, M.D.Ventura, CA1083831200
  9. Carol Schreiber, N.P.Placentia, CA1548482284
  10. Marjorie Shelton-GrossChico, CA1407068059

Common questions

What is Humayon Khan, M.D.'s NPI number?

Humayon Khan, M.D.'s National Provider Identifier (NPI) is 1609091818, issued on Apr 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Humayon Khan, M.D. located?

The NPPES record lists a practice address at 1629 W 17TH St, Santa Ana, CA, 92706. Phone: (714) 972-2111. Providers update this record themselves, so call before visiting.

How can I verify Humayon Khan, M.D.'s license?

NPPES lists California license number G74748, 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 Humayon Khan, M.D. prescribe under Medicare Part D?

In 2024, Humayon Khan, M.D. had 59 Medicare Part D claims; the average among hospice and palliative medicine (obstetrics & gynecology) physician prescribers was 161. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.