Stephen Mohaupt, M.D.
Addiction Psychiatry Physician · Norwalk, CA
Stephen Mohaupt, M.D. is an addiction psychiatry physician with a practice address in Norwalk, California, and NPI 1982792990, issued on Oct 11, 2006. Check the license (California A51161, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Mohaupt
- Credential
- M.D.
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License number
- A51161 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11401 Bloomfield Ave, Norwalk, CA 90650
- Phone
- (310) 251-9326
- Enumerated
- Oct 11, 2006
- Record last updated
- Mar 15, 2024
- Fax
- (310) 693-2616
- Entity
- Type 1 · individual
8 nearest addiction psychiatry physician records → All 73 in California → Look up another NPI →
Also registered at 11401 Bloomfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Abrams, MDPsychiatry Physician1972602753
- Camille Ace, PSY.D.Psychologist1740317650
- Arshad Ali, M.D.Psychiatry Physician1982834883
- Amaogechukwu Alugbue, NPFamily Nurse Practitioner1356123160
- Jaydina Amaker, PSY.D.Psychologist1952967341
- Ranjan Amin, M.D.Psychiatry Physician1659301489
Verify Stephen Mohaupt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A51161Check 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 addiction psychiatry physician in 2024
33 Medicare Part D claims, against an average of 716 among the 421 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
Stephen Mohaupt among 73 addiction psychiatry physician records in California
Stephen Mohaupt, M.D. is one of 73 addiction psychiatry physician records with a practice address in California. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 34% of these records are
- Record last updated2024 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0802X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Psychiatry Physician providers in California
There are 73 addiction psychiatry physician records in California.
All 73 in California → Every provider in Norwalk → Addiction Psychiatry Physician nationwide →
The 8 addiction psychiatry physician records with the nearest ZIP codes
- Milagros Demandante, MDLong Beach, CA 908041134342041
- Mark Katz, M.D.Long Beach, CA 908221558478941
- Ricardo Restrepo-Guzman, M.DLong Beach, CA 908221891720512
- Eva Altobelli, MDSanta Monica, CA 904041790990620
- Timothy Hayes, M.D., M.P.H.Santa Monica, CA 904041194722264
- William Huang, M.D.Santa Monica, CA 904031295787166
- Evelina WeinsteinSanta Monica, CA 904011891023842
- Wesley Ryan, M.DMarina Del Rey, CA 902921275845901
Common questions
What is Stephen Mohaupt, M.D.'s NPI number?
Stephen Mohaupt, M.D.'s National Provider Identifier (NPI) is 1982792990, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Mohaupt, M.D. located?
The NPPES record lists a practice address at 11401 Bloomfield Ave, Norwalk, CA, 90650. Phone: (310) 251-9326. Providers update this record themselves, so call before visiting.
How can I verify Stephen Mohaupt, M.D.'s license?
NPPES lists California license number A51161, 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 Stephen Mohaupt, M.D. prescribe under Medicare Part D?
In 2024, Stephen Mohaupt, M.D. had 33 Medicare Part D claims; the average among addiction psychiatry physician prescribers was 716. 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.