Brian Paul Riff, MD
Gastroenterology Physician · Anaheim, CA
Brian Paul Riff, MD is a gastroenterology physician with a practice address in Anaheim, California, and NPI 1194969030, issued on Apr 22, 2009. Check the license (California A143535, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Paul Riff
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A143535 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1211 W LA Palma Ave Ste 306, Anaheim, CA 92801
- Phone
- (714) 778-1300
- Enumerated
- Apr 22, 2009
- Record last updated
- Apr 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (714) 778-0303
- Medicare enrollment
- Enrolled (PECOS I20161005002252); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2009
- 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 1211 W LA Palma Ave Ste 306
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amber GarzaPhysician Assistant1336740810
- Kavita Singh, MDGastroenterology Physician1255597985
Verify Brian Paul Riff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A143535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,779 Medicare Part D claims for 527 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Omeprazole285 claims
- Sod Sulf-Potass Sulf-Mag Sulf192 claims
- Pantoprazole Sodium163 claims
- Linzess116 claims
- Famotidine68 claims
- Mesalamine46 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 MIPS final score for 2023 (Medicare payment program): 11.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $45,218.45
151 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, 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
- Associated Gastroenterology Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Paul Riff among 2,140 gastroenterology physician records in California
Brian Paul Riff, 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 2009, is newer than 69% of them.
- NPI issued2009 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2009 · median 2002 among the 1,538 with a school on file
- Record last updated2018 · 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 Anaheim → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ravindra Alapati, MDAnaheim, CA 928011912989773
- Ambika Bali, MDAnaheim, CA 928011427096478
- Sitaraman Jyotheeswaran, M.D.Anaheim, CA 928011952469272
- Kavita Singh, MDAnaheim, CA 928011255597985
- Zhigang Song, M.D., PH.D.Anaheim, CA 928011437309440
- Ashokkumar Amin, MDAnaheim, CA 928041831293109
- Michael Kim, M.D.Anaheim, CA 928041821229972
- Kenneth Yamashiro, MDAnaheim, CA 928041669584934
Common questions
What is Brian Paul Riff, MD's NPI number?
Brian Paul Riff, MD's National Provider Identifier (NPI) is 1194969030, issued on Apr 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Brian Paul Riff, MD located?
The NPPES record lists a practice address at 1211 W LA Palma Ave Ste 306, Anaheim, CA, 92801. Phone: (714) 778-1300. Providers update this record themselves, so call before visiting.
How can I verify Brian Paul Riff, MD's license?
NPPES lists California license number A143535, 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 Brian Paul Riff, MD prescribe under Medicare Part D?
In 2024, Brian Paul Riff, MD had 1,779 Medicare Part D claims for 527 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Brian Paul Riff, MD's MIPS final score?
The 2023 MIPS final score is 11.1 of 100. 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.