Arnab Mitra, M.D.
Gastroenterology Physician · Portland, OR
Arnab Mitra, M.D. is a gastroenterology physician with a practice address in Portland, Oregon, and NPI 1003175464, issued on May 4, 2012. Check the license (Oregon MD176770, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Arnab Mitra
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD176770 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3181 SW Sam Jackson Park RD # L461, Portland, OR 97239
- Phone
- (503) 494-7127
- Enumerated
- May 4, 2012
- Record last updated
- Feb 4, 2022
- Medicare enrollment
- Enrolled (PECOS I20190815000748); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 281 in Oregon → Look up another NPI →
Also registered at 3181 SW Sam Jackson Park RD # L461
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Sofia, M.D.Gastroenterology Physician1912261496
Verify Arnab Mitra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD176770Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average gastroenterology physician in 2024
642 Medicare Part D claims for 154 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Tacrolimus151 claims
- Mycophenolate Mofetil56 claims
- Spironolactone35 claims
- Azathioprine34 claims
- Pantoprazole Sodium33 claims
- Furosemide31 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 practice group's MIPS final score for 2023 (Medicare payment program): 68.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University Professional ServicesBeaverton, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Arnab Mitra among 281 gastroenterology physician records in Oregon
Arnab Mitra, M.D. is one of 281 gastroenterology physician records with a practice address in Oregon. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 78% of them.
- NPI issued2012 · 78% of these records are older, 18% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2003 among the 201 with a school on file
- Record last updated2022 · 45% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Oregon
There are 281 gastroenterology physician records in Oregon.
All 281 in Oregon → Every provider in Portland → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Andy Barnett, MDPortland, OR 972391194717819
- Seth Crockett, MD, MPHPortland, OR 972391437178183
- Michael (brian) Fennerty, MDPortland, OR 972391831104330
- Janice Jou, M.D.Portland, OR 972391679531941
- Ronald Katon, MDPortland, OR 972391184639692
- William Kelley, M.D.Portland, OR 972391164477105
- Kandice Knigge, MDPortland, OR 972391356356851
- David Lieberman, M.D.Portland, OR 972391790713063
Common questions
What is Arnab Mitra, M.D.'s NPI number?
Arnab Mitra, M.D.'s National Provider Identifier (NPI) is 1003175464, issued on May 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Arnab Mitra, M.D. located?
The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD # L461, Portland, OR, 97239. Phone: (503) 494-7127. Providers update this record themselves, so call before visiting.
How can I verify Arnab Mitra, M.D.'s license?
NPPES lists Oregon license number MD176770, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Arnab Mitra, M.D. prescribe under Medicare Part D?
In 2024, Arnab Mitra, M.D. had 642 Medicare Part D claims for 154 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Arnab Mitra, M.D.'s MIPS final score?
The 2023 MIPS final score is 68.5 of 100, reported for the practice group. 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.