F. Otis Stephen, M.D.
Gastroenterology Physician · Los Angeles, CA
F. Otis Stephen, M.D. is a gastroenterology physician with a practice address in Los Angeles, California, and NPI 1780615906, issued on Jul 5, 2006. Check the license (California A76669, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- F. Otis Stephen
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A76669 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Ucla Medical Plz Ste 205, Los Angeles, CA 90024
- Phone
- (310) 423-3870
- Enumerated
- Jul 5, 2006
- Record last updated
- Jan 6, 2025
- Fax
- (310) 423-0429
- Medicare enrollment
- Enrolled (PECOS I20060815000146); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 100 Ucla Medical Plz Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jihane Benhammou, B.S.Gastroenterology Physician1326347998
- Su Yeun Chang, NP-CFamily Nurse Practitioner1922764083
- Carrie Wong, M.D.Gastroenterology Physician1801214440
Verify F. Otis Stephen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76669Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average gastroenterology physician in 2024
100 Medicare Part D claims for 54 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Pantoprazole Sodium22 claims
- Gavilyte-G18 claims
- Sucralfate13 claims
- Gattex12 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.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
F. Otis Stephen among 2,140 gastroenterology physician records in California
F. Otis Stephen, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1998 · median 2002 among the 1,538 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Los Angeles → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jihane Benhammou, B.S.Los Angeles, CA 900241326347998
- Steven-Huy Han, MDLos Angeles, CA 900241841218880
- Parviz Javdan, M.D.Los Angeles, CA 900241376640235
- Sammy Saab, MDLos Angeles, CA 900241720008899
- Carrie Wong, M.D.Los Angeles, CA 900241801214440
- Sohrab Yamini, M.D.Los Angeles, CA 900241689601858
- Timothy Zaki, MDLos Angeles, CA 900241790312486
- John Debanto, MDLos Angeles, CA 900261033175922
Common questions
What is F. Otis Stephen, M.D.'s NPI number?
F. Otis Stephen, M.D.'s National Provider Identifier (NPI) is 1780615906, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is F. Otis Stephen, M.D. located?
The NPPES record lists a practice address at 100 Ucla Medical Plz Ste 205, Los Angeles, CA, 90024. Phone: (310) 423-3870. Providers update this record themselves, so call before visiting.
How can I verify F. Otis Stephen, M.D.'s license?
NPPES lists California license number A76669, 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 F. Otis Stephen, M.D. prescribe under Medicare Part D?
In 2024, F. Otis Stephen, M.D. had 100 Medicare Part D claims for 54 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.