Ian Andrew Eisenberg
Internal Medicine Physician · New Brunswick, NJ
Ian Andrew Eisenberg is an internal medicine physician with a practice address in New Brunswick, New Jersey, and NPI 1861078347, issued on Mar 23, 2021. Check the license (New Jersey 25MA12196200, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ian Andrew Eisenberg
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA12196200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 125 Paterson St Ste 7300, New Brunswick, NJ 08901
- Phone
- (732) 235-8887
- Enumerated
- Mar 23, 2021
- Record last updated
- Jul 10, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 125 Paterson St Ste 7300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ian Andrew Eisenberg 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 25MA12196200Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
151 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium16 claims
- Amlodipine Besylate12 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.
Ian Andrew Eisenberg among 4,632 internal medicine physician records in New Jersey
Ian Andrew Eisenberg 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2024 · 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).
141 internal medicine physician records list a practice address in New Brunswick
They are 141 of the 2,740 NPPES records with a practice address in New Brunswick, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in New Brunswick → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sheila Curry Bryan, MDNew Brunswick, NJ 089011306895263
- Kim Dixon, M.D.New Brunswick, NJ 089011144262130
- Nayan Kothari, MDNew Brunswick, NJ 089011881648244
- Ibiyonu Lawrence, MDNew Brunswick, NJ 089011508829318
- Beth Lewis, MDNew Brunswick, NJ 089011053362392
- Stephen Marcella, MDNew Brunswick, NJ 089011407865694
- Manish Patel, MDNew Brunswick, NJ 089011013983998
- Audrey Pereira, MDNew Brunswick, NJ 089011922022516
Common questions
What is Ian Andrew Eisenberg's NPI number?
Ian Andrew Eisenberg's National Provider Identifier (NPI) is 1861078347, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ian Andrew Eisenberg located?
The NPPES record lists a practice address at 125 Paterson St Ste 7300, New Brunswick, NJ, 08901. Phone: (732) 235-8887. Providers update this record themselves, so call before visiting.
How can I verify Ian Andrew Eisenberg's license?
NPPES lists New Jersey license number 25MA12196200, 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 Ian Andrew Eisenberg prescribe under Medicare Part D?
In 2024, Ian Andrew Eisenberg had 151 Medicare Part D claims for 54 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.