Mark T. Lin, MD
Gastroenterology Physician · Tucson, AZ
Mark T. Lin, MD is a gastroenterology physician with a practice address in Tucson, Arizona, and NPI 1366594749, issued on Jan 17, 2007. Check the license (Arizona 42987, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark T. Lin
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 42987 AZ
2008024820 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1396 N Wilmot RD, Tucson, AZ 85712
- Phone
- (520) 420-2250
- Enumerated
- Jan 17, 2007
- Record last updated
- Aug 19, 2025
- Medicaid ID
- 511460 AZ
- Medicare enrollment
- Enrolled (PECOS I20100802000995); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2004
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 403 in Arizona → Look up another NPI →
Also registered at 1396 N Wilmot RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Ann Adzhari, FNPFamily Nurse Practitioner1811238850
- Lynette Ancharski, FNPFamily Nurse Practitioner1194158998
- Stephen Cohen, M.D.Family Medicine Physician1649254780
- Robert Cole, MDFamily Medicine Physician1205098985
- Gary Gottlieb, M.D.Gastroenterology Physician1366418071
- Soheila Nouri, M.D.Internal Medicine Physician1124016852
Verify Mark T. Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 42987Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average gastroenterology physician in 2024
1,550 Medicare Part D claims for 674 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Omeprazole303 claims
- Sod Sulf-Potass Sulf-Mag Sulf211 claims
- Pantoprazole Sodium207 claims
- Sutab145 claims
- Humira(Cf) Pen52 claims
- Budesonide Dr44 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): 89.3 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: $486.86
28 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 2 group practices
- Northwest Allied Physicians LLCOro Valley, AZ
- Tmc Medical NetworkTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark T. Lin among 403 gastroenterology physician records in Arizona
Mark T. Lin, 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 2007, is newer than 59% of them.
- NPI issued2007 · 59% of these records are older, 31% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2004 · median 2001 among the 295 with a school on file
- Record last updated2025 · 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.
All 403 in Arizona → Every provider in Tucson → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Fadi Deeb, MDTucson, AZ 857121497729248
- Gary Gottlieb, M.D.Tucson, AZ 857121366418071
- Craig Gross, M.D.Tucson, AZ 857121871568626
- Bassel Kisso, MDTucson, AZ 857121093918302
- Charles Krone, M.D.Tucson, AZ 857121497899173
- Bechara Mezher, MDTucson, AZ 857121598751794
- Debra Townsend, M.D.Tucson, AZ 857121033183785
- Carl Kanun, MDTucson, AZ 857111952309130
Common questions
What is Mark T. Lin, MD's NPI number?
Mark T. Lin, MD's National Provider Identifier (NPI) is 1366594749, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark T. Lin, MD located?
The NPPES record lists a practice address at 1396 N Wilmot RD, Tucson, AZ, 85712. Phone: (520) 420-2250. Providers update this record themselves, so call before visiting.
How can I verify Mark T. Lin, MD's license?
NPPES lists Arizona license number 42987, 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 T. Lin, MD prescribe under Medicare Part D?
In 2024, Mark T. Lin, MD had 1,550 Medicare Part D claims for 674 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Mark T. Lin, MD's MIPS final score?
The 2023 MIPS final score is 89.3 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.