Stephen Leslie Herr, MD
Gastroenterology Physician · West Hills, CA
Stephen Leslie Herr, MD is a gastroenterology physician with a practice address in West Hills, California, and NPI 1326005091, issued on Apr 27, 2006. Check the license (California G19501, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Leslie Herr
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G19501 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7301 Medical Center Dr, West Hills, CA 91307
- Phone
- (818) 346-9911
- Enumerated
- Apr 27, 2006
- Record last updated
- Oct 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (818) 346-2857
- Medicare enrollment
- Enrolled (PECOS I20110128000373); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1968
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 7301 Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen Leslie Herr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G19501Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average gastroenterology physician in 2024
838 Medicare Part D claims for 131 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Pantoprazole Sodium91 claims
- Omeprazole45 claims
- Atorvastatin Calcium40 claims
- Amlodipine Besylate29 claims
- Metoprolol Succinate29 claims
- Tamsulosin Hcl29 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $986.88
24 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Genesis Healthcare Partners PCWest Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Leslie Herr among 2,140 gastroenterology physician records in California
Stephen Leslie Herr, MD 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
- Graduated1968 · median 2002 among the 1,538 with a school on file
- Record last updated2007 · 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).
11 gastroenterology physician records list a practice address in West Hills
They are 11 of the 708 NPPES records with a practice address in West Hills, and 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in West Hills → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Calin Arimie, MDWest Hills, CA 913071831277847
- Ron Chitayat, MDWest Hills, CA 913071912008657
- Craig Gluckman, MDWest Hills, CA 913071881942506
- Paul Gulsrud, MDWest Hills, CA 913071801975966
- Danny Issa, MDWest Hills, CA 913071750631396
- Jonathan Matthew, MDWest Hills, CA 913071124085881
- Mona Rezapour, M.D.West Hills, CA 913071841559580
- Gerald Rothman, MDWest Hills, CA 913071164489977
Common questions
What is Stephen Leslie Herr, MD's NPI number?
Stephen Leslie Herr, MD's National Provider Identifier (NPI) is 1326005091, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Leslie Herr, MD located?
The NPPES record lists a practice address at 7301 Medical Center Dr, West Hills, CA, 91307. Phone: (818) 346-9911. Providers update this record themselves, so call before visiting.
How can I verify Stephen Leslie Herr, MD's license?
NPPES lists California license number G19501, 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 Leslie Herr, MD prescribe under Medicare Part D?
In 2024, Stephen Leslie Herr, MD had 838 Medicare Part D claims for 131 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Stephen Leslie Herr, MD's MIPS final score?
The 2023 MIPS final score is 84 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.