Abhinav Tiwari, MD
Gastroenterology Physician · Springfield, OR
Abhinav Tiwari, MD is a gastroenterology physician with a practice address in Springfield, Oregon, and NPI 1225411598, issued on Jul 6, 2015. Check the license (Oregon MD204814, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Abhinav Tiwari
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD204814 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3377 Riverbend Dr, Springfield, OR 97477
- Phone
- (541) 222-6200
- Enumerated
- Jul 6, 2015
- Record last updated
- Sep 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210629003471); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 281 in Oregon → Look up another NPI →
Also registered at 3377 Riverbend Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harry Adamo, MDFamily Medicine Physician1235191412
- Algene Agustin, MDHospitalist Physician1154849446
- Ossama Al Masalmeh, M.D.Hospitalist Physician1851654776
- Joanna Marie Aquino-Laban, M.D.Internal Medicine Physician1336435536
- Stan AtkinHospitalist Physician1831509371
- Virginia Barak, MDPediatrics Physician1063948461
Verify Abhinav Tiwari in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD204814Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average gastroenterology physician in 2024
745 Medicare Part D claims for 447 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Peg 3350-Electrolyte195 claims
- Sod Sulf-Potass Sulf-Mag Sulf141 claims
- Omeprazole115 claims
- Pantoprazole Sodium36 claims
- Dicyclomine Hcl23 claims
- Linzess18 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.
Industry payments in 2024: $214.43
4 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.
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
- Peacehealth Medical GroupSpringfield, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Abhinav Tiwari among 281 gastroenterology physician records in Oregon
Abhinav Tiwari, MD 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 2015, is newer than 88% of them.
- NPI issued2015 · 88% of these records are older, 9% 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 updated2021 · 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 Springfield → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Craig Chamberlain, MDSpringfield, OR 974771598784928
- Ryan De Lee, MDSpringfield, OR 974771104920693
- Paul Evans, M.D.Springfield, OR 974771962480871
- Jonathan Gonenne, MDSpringfield, OR 974771649299538
- Peter Grubel, MDSpringfield, OR 974771376531335
- Peter Kay, MDSpringfield, OR 974771710906177
- Gregory Knecht, MDSpringfield, OR 974771598785578
- Christianne Kratka, MDSpringfield, OR 974771851310130
Common questions
What is Abhinav Tiwari, MD's NPI number?
Abhinav Tiwari, MD's National Provider Identifier (NPI) is 1225411598, issued on Jul 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Abhinav Tiwari, MD located?
The NPPES record lists a practice address at 3377 Riverbend Dr, Springfield, OR, 97477. Phone: (541) 222-6200. Providers update this record themselves, so call before visiting.
How can I verify Abhinav Tiwari, MD's license?
NPPES lists Oregon license number MD204814, 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 Abhinav Tiwari, MD prescribe under Medicare Part D?
In 2024, Abhinav Tiwari, MD had 745 Medicare Part D claims for 447 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.