NPPES file of Aug 9, 2026

Richard G. Quist, M.D.

Gastroenterology Physician · Newport Beach, CA

Richard G. Quist, M.D. is a gastroenterology physician with a practice address in Newport Beach, California, and NPI 1861436024, issued on Jun 16, 2006. Check the license (California A65910, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861436024
Name
Richard G. Quist
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A65910 CA
Self-reported in NPPES; status is on the state search
Practice location
520 Superior Ave Ste 245, Newport Beach, CA 92663
Phone
(949) 645-8300
Enumerated
Jun 16, 2006
Record last updated
Jul 30, 2026
Fax
(949) 645-4715
Medicaid ID
00A659100 CA
Medicare enrollment
Enrolled (PECOS I20100909001024); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1994
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 520 Superior Ave Ste 245

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hali Pham, FNPGeneral Practice Registered Nurse1295370278

Verify Richard G. Quist in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A65910
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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6.0 times the Medicare Part D claims of the average gastroenterology physician in 2024

4,827 Medicare Part D claims for 1,323 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Richard Quist4,827
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium1,165 claims
  2. Famotidine547 claims
  3. Peg 3350-Electrolyte397 claims
  4. Omeprazole228 claims
  5. Sucralfate215 claims
  6. Creon168 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $4,861.85

249 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.

  1. Richard Quist$4,861.85
  2. Specialty average$5,015.95

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

  1. Richard G Quist, MD Medical Corporation Inc.Newport Beach, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Richard G. Quist among 2,140 gastroenterology physician records in California

Richard G. Quist, 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
  • Graduated1994 · median 2002 among the 1,538 with a school on file
  • Record last updated2026 · 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.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Donald Abrahm, M.D.Newport Beach, CA 926631215022405
  2. Kenneth J Chang, MDNewport Beach, CA 926631518047604
  3. Parminder Dhaliwal, MDNewport Beach, CA 926631811913759
  4. Ravi Kankotia, M.D.Newport Beach, CA 926631275996613
  5. Paul Korc, MD, INC.Newport Beach, CA 926631922243161
  6. Christopher Lee, MDNewport Beach, CA 926631629257035
  7. Glenn Madokoro, M.D.Newport Beach, CA 926631639255060
  8. Homeira Mehrabian, MDNewport Beach, CA 926631699972844

Common questions

What is Richard G. Quist, M.D.'s NPI number?

Richard G. Quist, M.D.'s National Provider Identifier (NPI) is 1861436024, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Richard G. Quist, M.D. located?

The NPPES record lists a practice address at 520 Superior Ave Ste 245, Newport Beach, CA, 92663. Phone: (949) 645-8300. Providers update this record themselves, so call before visiting.

How can I verify Richard G. Quist, M.D.'s license?

NPPES lists California license number A65910, 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 Richard G. Quist, M.D. prescribe under Medicare Part D?

In 2024, Richard G. Quist, M.D. had 4,827 Medicare Part D claims for 1,323 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Richard G. Quist, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.