NPPES file of Aug 9, 2026

Gary Ronald Monash, M.D.

Gastroenterology Physician · Tucson, AZ

Gary Ronald Monash, M.D. is a gastroenterology physician with a practice address in Tucson, Arizona, and NPI 1891771846, issued on Dec 21, 2005. Check the license (Arizona 13401, as entered in NPPES) on the Arizona Medical Board; 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
1891771846
Name
Gary Ronald Monash
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
13401 AZ
Self-reported in NPPES; status is on the state search
Practice location
7566 N LA Cholla Blvd, Tucson, AZ 85741
Phone
(520) 742-4139
Enumerated
Dec 21, 2005
Record last updated
Dec 18, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(520) 742-9618
Medicaid ID
223595 AZ
Medicare enrollment
Enrolled (PECOS I20110301000624); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 1977
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 7566 N LA Cholla Blvd

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

  1. Scott Blinkoff, M.D.Gastroenterology Physician1699751545
  2. Bryan Contreras, M.D.Gastroenterology Physician1578549457
  3. James Dinning, M.D.Gastroenterology Physician1821074782
  4. Anne Elliott, PAPhysician Assistant1003864141
  5. Frederick Klein, M.D.Gastroenterology Physician1962487876
  6. Kathleen Piotrowski, APRN-CRNACertified Registered Nurse Anesthetist1831141951

Verify Gary Ronald Monash in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 13401
    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 Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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40% fewer Medicare Part D claims than the average gastroenterology physician in 2024

483 Medicare Part D claims for 269 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.

  1. Gary Monash483
  2. Specialty average811

Most prescribed

  1. Sod Sulf-Potass Sulf-Mag Sulf75 claims
  2. Pantoprazole Sodium62 claims
  3. Clenpiq39 claims
  4. Omeprazole36 claims
  5. Gavilyte-G32 claims
  6. Sucralfate22 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): 23.2 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.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%77.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $1,709.94

53 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. Gary Monash$1,709.94
  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. Arizona Digestive Health PCTucson, AZ

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

Gary Ronald Monash among 403 gastroenterology physician records in Arizona

Gary Ronald Monash, M.D. is one of 403 gastroenterology physician records with a practice address in Arizona. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1977 · median 2001 among the 295 with a school on file
  • Record last updated2007 · 47% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Arizona

There are 403 gastroenterology physician records in Arizona.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Larissa Allen, M.D.Tucson, AZ 857411659536480
  2. Scott Blinkoff, M.D.Tucson, AZ 857411699751545
  3. Bryan Contreras, M.D.Tucson, AZ 857411578549457
  4. James Dinning, M.D.Tucson, AZ 857411821074782
  5. Romeo Esquivel, MDTucson, AZ 857411790758662
  6. Frederick Klein, M.D.Tucson, AZ 857411962487876
  7. Leon Tsai, M.D.Tucson, AZ 857411912983883
  8. Kristen Barrett, MDTucson, AZ 857451538455704

Common questions

What is Gary Ronald Monash, M.D.'s NPI number?

Gary Ronald Monash, M.D.'s National Provider Identifier (NPI) is 1891771846, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gary Ronald Monash, M.D. located?

The NPPES record lists a practice address at 7566 N LA Cholla Blvd, Tucson, AZ, 85741. Phone: (520) 742-4139. Providers update this record themselves, so call before visiting.

How can I verify Gary Ronald Monash, M.D.'s license?

NPPES lists Arizona license number 13401, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gary Ronald Monash, M.D. prescribe under Medicare Part D?

In 2024, Gary Ronald Monash, M.D. had 483 Medicare Part D claims for 269 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Gary Ronald Monash, M.D.'s MIPS final score?

The 2023 MIPS final score is 23.2 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.