Heather Ellyn Greenberg, M.D.
Endocrinology, Diabetes & Metabolism Physician · Morristown, NJ
Heather Ellyn Greenberg, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Morristown, New Jersey, and NPI 1407121684, issued on Mar 20, 2012. Check the license (New Jersey 25MA10078300, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Heather Ellyn Greenberg
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 25MA10078300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 95 Madison Ave, Morristown, NJ 07960
- Phone
- (973) 775-5115
- Enumerated
- Mar 20, 2012
- Record last updated
- Feb 16, 2026
- Fax
- (973) 285-7617
- Medicare enrollment
- Enrolled (PECOS I20170828000800); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 417 in New Jersey → Look up another NPI →
Also registered at 95 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heather Ellyn Greenberg 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 25MA10078300Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
4,293 Medicare Part D claims for 587 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Levothyroxine Sodium671 claims
- Metformin Hcl Er307 claims
- Ozempic266 claims
- Metformin Hcl252 claims
- Mounjaro252 claims
- Synthroid212 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: $231.72
2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Summit Medical Group PABerkeley Heights, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heather Ellyn Greenberg among 417 endocrinology, diabetes & metabolism physician records in New Jersey
Heather Ellyn Greenberg, M.D. is one of 417 endocrinology, diabetes & metabolism physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2012 · median 2006 among the 313 with a school on file
- Record last updated2026 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in New Jersey
There are 417 endocrinology, diabetes & metabolism physician records in New Jersey.
All 417 in New Jersey → Every provider in Morristown → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Rachel Castaneda, M.D.Morristown, NJ 079601619051646
- Jajin Chon, M.D.Morristown, NJ 079601346320553
- Debra Margulies, M.D.Morristown, NJ 079601134177918
- Robert Melfi, MDMorristown, NJ 079601346213998
- Andrew Parziale, MDMorristown, NJ 079601346638350
- Ronak PatelMorristown, NJ 079601821247354
- Nikoletta ProudanMorristown, NJ 079601437538279
- Leena Shah, M.D.Morristown, NJ 079601194258343
Common questions
What is Heather Ellyn Greenberg, M.D.'s NPI number?
Heather Ellyn Greenberg, M.D.'s National Provider Identifier (NPI) is 1407121684, issued on Mar 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Heather Ellyn Greenberg, M.D. located?
The NPPES record lists a practice address at 95 Madison Ave, Morristown, NJ, 07960. Phone: (973) 775-5115. Providers update this record themselves, so call before visiting.
How can I verify Heather Ellyn Greenberg, M.D.'s license?
NPPES lists New Jersey license number 25MA10078300, 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 Heather Ellyn Greenberg, M.D. prescribe under Medicare Part D?
In 2024, Heather Ellyn Greenberg, M.D. had 4,293 Medicare Part D claims for 587 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.