Steven Nalonnil Mathews, M.D.
Gastroenterology Physician · Flemington, NJ
Steven Nalonnil Mathews, M.D. is a gastroenterology physician with a practice address in Flemington, New Jersey, and NPI 1437680832, issued on Mar 27, 2017. Check the license (New Jersey 25MA11698500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Steven Nalonnil Mathews
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 25MA11698500 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Wescott Dr Ste 206, Flemington, NJ 08822
- Phone
- (908) 788-6448
- Enumerated
- Mar 27, 2017
- Record last updated
- Nov 2, 2023
- Fax
- (908) 788-5090
- Medicare enrollment
- Enrolled (PECOS I20231030000683); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 735 in New Jersey → Look up another NPI →
Also registered at 1100 Wescott Dr Ste 206
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gabriela Chandrika, PA-CPhysician Assistant1871321810
- Maria Georgsson, M.D.Specialist1700804101
- Ekta Kade, APNNurse Practitioner1326440645
- Devi Patel, MDGastroenterology Physician1053670679
Verify Steven Nalonnil Mathews in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA11698500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average gastroenterology physician in 2024
546 Medicare Part D claims for 295 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf135 claims
- Omeprazole101 claims
- Pantoprazole Sodium62 claims
- Dicyclomine Hcl37 claims
- Clenpiq28 claims
- Sucralfate26 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: $15.00
1 payment: food and beverage; the largest payer was Erbe USA 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
- Hunterdon Gastroenterology Associates, PAFlemington, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Nalonnil Mathews among 735 gastroenterology physician records in New Jersey
Steven Nalonnil Mathews, M.D. is one of 735 gastroenterology physician records with a practice address in New Jersey. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 91% of them.
- NPI issued2017 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2017 · median 2000 among the 564 with a school on file
- Record last updated2023 · 54% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 gastroenterology physician records list a practice address in Flemington
They are 13 of the 978 NPPES records with a practice address in Flemington, and 735 gastroenterology physician records in New Jersey.
All 735 in New Jersey → Every provider in Flemington → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Usha Alagesan, RN,MSN,NP-CFlemington, NJ 088221871928572
- Richard Arrigo, DOFlemington, NJ 088221669677811
- Gilbert Cardoso, DOFlemington, NJ 088221477514818
- Kenneth Digregorio, M.D.Flemington, NJ 088221598726382
- Andrea Goldstein, M.D.Flemington, NJ 088221467653055
- Jeffrey Hartford, M.D.Flemington, NJ 088221043238439
- Khengjim Lim, MDFlemington, NJ 088221194169045
- Jason Matthews, M.D.Flemington, NJ 088221841404787
Common questions
What is Steven Nalonnil Mathews, M.D.'s NPI number?
Steven Nalonnil Mathews, M.D.'s National Provider Identifier (NPI) is 1437680832, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Steven Nalonnil Mathews, M.D. located?
The NPPES record lists a practice address at 1100 Wescott Dr Ste 206, Flemington, NJ, 08822. Phone: (908) 788-6448. Providers update this record themselves, so call before visiting.
How can I verify Steven Nalonnil Mathews, M.D.'s license?
NPPES lists New Jersey license number 25MA11698500, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven Nalonnil Mathews, M.D. prescribe under Medicare Part D?
In 2024, Steven Nalonnil Mathews, M.D. had 546 Medicare Part D claims for 295 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.