Nancy E. Allegar, M.D.
Internal Medicine Physician · Hillsborough, NJ
Nancy E. Allegar, M.D. is an internal medicine physician with a practice address in Hillsborough, New Jersey, and NPI 1750387494, issued on Jun 27, 2005. Check the license (New Jersey 25MA05520800, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nancy E. Allegar
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA05520800 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 390 Amwell RD Ste 501, Hillsborough, NJ 08844
- Phone
- (908) 281-1077
- Enumerated
- Jun 27, 2005
- Record last updated
- Apr 11, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (908) 281-1081
- Medicaid ID
- 5202205 NJ
- Medicare enrollment
- Enrolled (PECOS I20050622000146); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 390 Amwell RD Ste 501
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vida Kaplan, FNPFamily Nurse Practitioner1821566043
Verify Nancy E. Allegar 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 25MA05520800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average internal medicine physician in 2024
9,221 Medicare Part D claims for 592 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 275 claims were for opioids.
Most prescribed
- Levothyroxine Sodium507 claims
- Famotidine310 claims
- Alprazolam292 claims
- Montelukast Sodium276 claims
- Fluticasone Propionate249 claims
- Synthroid234 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.
Bills Medicare through 2 group practices
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
- The Medical Group OF New JerseyHillsborough, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy E. Allegar among 4,632 internal medicine physician records in New Jersey
Nancy E. Allegar, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1989 · 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).
11 internal medicine physician records list a practice address in Hillsborough
They are 11 of the 575 NPPES records with a practice address in Hillsborough, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Hillsborough → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lin Chou, M.D.Hillsborough, NJ 088441083705560
- Madhuri Gadiyaram, M.D.Hillsborough, NJ 088441356492433
- Yanto Gultom, MDHillsborough, NJ 088441851444228
- Roger Haas, MDHillsborough, NJ 088441104965987
- Stephen Hamersky, MDHillsborough, NJ 088441316197874
- Ahmad Mur, MDHillsborough, NJ 088441801878582
- Deborah Neiman, M.DHillsborough, NJ 088441699793547
- Bhavi Patel, M.D.Hillsborough, NJ 088441306850409
Common questions
What is Nancy E. Allegar, M.D.'s NPI number?
Nancy E. Allegar, M.D.'s National Provider Identifier (NPI) is 1750387494, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nancy E. Allegar, M.D. located?
The NPPES record lists a practice address at 390 Amwell RD Ste 501, Hillsborough, NJ, 08844. Phone: (908) 281-1077. Providers update this record themselves, so call before visiting.
How can I verify Nancy E. Allegar, M.D.'s license?
NPPES lists New Jersey license number 25MA05520800, 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 Nancy E. Allegar, M.D. prescribe under Medicare Part D?
In 2024, Nancy E. Allegar, M.D. had 9,221 Medicare Part D claims for 592 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.