Nathaniel Seth Feldman, MD
Internal Medicine Physician · Newton, NJ
Nathaniel Seth Feldman, MD is an internal medicine physician with a practice address in Newton, New Jersey, and NPI 1558331132, issued on Jan 25, 2006. Check the license (New Jersey 25MA04572600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Seth Feldman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA04572600 NJ
Self-reported in NPPES; status is on the state search - Practice location
- Newton Medical Center, Newton, NJ 07860
- Phone
- (973) 579-8321
- Enumerated
- Jan 25, 2006
- Record last updated
- Nov 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 01208415 NY
- Medicare enrollment
- Enrolled (PECOS I20091214000537); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1983
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Verify Nathaniel Seth Feldman 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 25MA04572600Check 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% fewer Medicare Part D claims than the average internal medicine physician in 2024
294 Medicare Part D claims for 118 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefdinir19 claims
- Prednisone13 claims
- Metoprolol Succinate11 claims
- Nystatin11 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: $223.97
13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Practice Associates Medical GroupMorristown, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Seth Feldman among 4,632 internal medicine physician records in New Jersey
Nathaniel Seth Feldman, MD is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1983 · median 2000 among the 3,132 with a school on file
- Record last updated2019 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Newton
They are 23 of the 503 NPPES records with a practice address in Newton, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Newton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anuja Chaudhari, D.O.Newton, NJ 078601477743920
- Nick Debitetto, D.O.Newton, NJ 078601083692933
- Anthony Delsardo, M.D.Newton, NJ 078601154308203
- Omotola Jaiyebo, MDNewton, NJ 078601912077421
- William Landre, MDNewton, NJ 078601942223235
- Mina Mohammadi, M.D.Newton, NJ 078601457331258
- Daya Nadarajah, M.D.Newton, NJ 078601063492965
- Augustine Okpala, M.DNewton, NJ 078601124085766
Common questions
What is Nathaniel Seth Feldman, MD's NPI number?
Nathaniel Seth Feldman, MD's National Provider Identifier (NPI) is 1558331132, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Seth Feldman, MD located?
The NPPES record lists a practice address at Newton Medical Center, Newton, NJ, 07860. Phone: (973) 579-8321. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Seth Feldman, MD's license?
NPPES lists New Jersey license number 25MA04572600, 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 Nathaniel Seth Feldman, MD prescribe under Medicare Part D?
In 2024, Nathaniel Seth Feldman, MD had 294 Medicare Part D claims for 118 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.