Marc Aaron Heiser, M.D., PH.D
Psychiatry Physician · Los Angeles, CA
Marc Aaron Heiser, M.D., PH.D is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1790002509, issued on May 3, 2010. Check the license (California A120147, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marc Aaron Heiser
- Credential
- M.D., PH.D
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A120147 CA
Self-reported in NPPES; status is on the state search - Practice location
- 760 Westwood Plz, Los Angeles, CA 90024
- Phone
- (310) 825-0018
- Enumerated
- May 3, 2010
- Record last updated
- Jun 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 760 Westwood Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pilar Abascal, M.D.Psychiatry Physician1730528191
- Anna Alkozei, PH.D.Psychologist1396486023
- Armen Arevian, MD, PHDPsychiatry Physician1770899585
- Thomas Babayan, LMFTMarriage & Family Therapist1114109030
- Chelsea BartonStudent in an Organized Health Care Education/Training Program1982534947
- Dina BashouraStudent in an Organized Health Care Education/Training Program1932796596
Verify Marc Aaron Heiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A120147Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
48 Medicare Part D claims for 13 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of 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.
Marc Aaron Heiser among 8,673 psychiatry physician records in California
Marc Aaron Heiser, M.D., PH.D 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2016 · 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).
987 psychiatry physician records list a practice address in Los Angeles
They are 987 of the 69,537 NPPES records with a practice address in Los Angeles, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Los Angeles → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- George Allen, MDLos Angeles, CA 900241154452308
- John Altman, MDLos Angeles, CA 900241053480327
- Robert Ashley, MDLos Angeles, CA 900241255385886
- Henry Bender, M.D.Los Angeles, CA 900241154450336
- Franklin Dines, MDLos Angeles, CA 900241881763142
- Robert Gerner, M.D.Los Angeles, CA 900241083667455
- Thomas Kappeler, MDLos Angeles, CA 900241912070749
- Matthew Koury, M.D.Los Angeles, CA 900241376633735
Common questions
What is Marc Aaron Heiser, M.D., PH.D's NPI number?
Marc Aaron Heiser, M.D., PH.D's National Provider Identifier (NPI) is 1790002509, issued on May 3, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Marc Aaron Heiser, M.D., PH.D located?
The NPPES record lists a practice address at 760 Westwood Plz, Los Angeles, CA, 90024. Phone: (310) 825-0018. Providers update this record themselves, so call before visiting.
How can I verify Marc Aaron Heiser, M.D., PH.D's license?
NPPES lists California license number A120147, 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 Marc Aaron Heiser, M.D., PH.D prescribe under Medicare Part D?
In 2024, Marc Aaron Heiser, M.D., PH.D had 48 Medicare Part D claims for 13 beneficiaries; 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.