NPPES file of Aug 9, 2026

Mark D. Gulinson, MD

Gastroenterology Physician · Phoenix, AZ

Mark D. Gulinson, MD is a gastroenterology physician with a practice address in Phoenix, Arizona, and NPI 1881698264, issued on Jun 13, 2005. Check the license (Arizona 24155, 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
1881698264
Name
Mark D. Gulinson
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
24155 AZ
Self-reported in NPPES; status is on the state search
Practice location
9250 N 3RD St Ste 4035, Phoenix, AZ 85020
Phone
(623) 279-3575
Enumerated
Jun 13, 2005
Record last updated
Nov 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(602) 279-2666
Medicaid ID
34530701 AZ
Medicare enrollment
Enrolled (PECOS I20100928001540); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 1990
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 9250 N 3RD St Ste 4035

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

  1. Michael Foley, DOGastroenterology Physician1235365784
  2. Abigail Mendez, FNP-CFamily Nurse Practitioner1477305134

Verify Mark D. Gulinson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 24155
    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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2.7 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,150 Medicare Part D claims for 577 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Mark Gulinson2,150
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium998 claims
  2. Creon105 claims
  3. Dicyclomine Hcl76 claims
  4. Esomeprazole Magnesium67 claims
  5. Zenpep64 claims
  6. Omeprazole54 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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $2,102.21

93 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. Mark Gulinson$2,102.21
  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 PCPhoenix, AZ

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

Mark D. Gulinson among 403 gastroenterology physician records in Arizona

Mark D. Gulinson, MD 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
  • Graduated1990 · median 2001 among the 295 with a school on file
  • Record last updated2020 · 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. Michael Foley, DOPhoenix, AZ 850201235365784
  2. Adarsh Sai, MDPhoenix, AZ 850201467742940
  3. Radhika Babaria, MDPhoenix, AZ 850161811421613
  4. Steven Schaffner, MDPhoenix, AZ 850161265595581
  5. Masud Shaukat, MDPhoenix, AZ 850161790739266
  6. Frederick Kogan, MDPhoenix, AZ 850151831146117
  7. Nadim Zyadeh, MDPhoenix, AZ 850151609877935
  8. Shahab Aftahi, M.D.Phoenix, AZ 850131881656783

Common questions

What is Mark D. Gulinson, MD's NPI number?

Mark D. Gulinson, MD's National Provider Identifier (NPI) is 1881698264, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark D. Gulinson, MD located?

The NPPES record lists a practice address at 9250 N 3RD St Ste 4035, Phoenix, AZ, 85020. Phone: (623) 279-3575. Providers update this record themselves, so call before visiting.

How can I verify Mark D. Gulinson, MD's license?

NPPES lists Arizona license number 24155, 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 Mark D. Gulinson, MD prescribe under Medicare Part D?

In 2024, Mark D. Gulinson, MD had 2,150 Medicare Part D claims for 577 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Mark D. Gulinson, MD'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.