Stephen G. Zachariah, MD
Endocrinology, Diabetes & Metabolism Physician · New York, NY
Stephen G. Zachariah, MD is an endocrinology, diabetes & metabolism physician with a practice address in New York, New York, and NPI 1376005231, issued on Apr 1, 2019. Check the license (New York 331900, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Stephen G. Zachariah
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 331900 NY
Self-reported in NPPES; status is on the state search - Practice location
- 55 E 55TH St, New York, NY 10022
- Phone
- (646) 754-2000
- Enumerated
- Apr 1, 2019
- Record last updated
- Apr 8, 2025
- Fax
- (646) 754-9690
- Medicare enrollment
- Enrolled (PECOS I20240906000163); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 970 in New York → Look up another NPI →
Also registered at 55 E 55TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmar Alam, MDInternal Medicine Physician1982354460
- Parmanand Dasrat, M.D.Cardiovascular Disease Physician1033678362
- Navjot Kaur, FNP-BCFamily Nurse Practitioner1164976080
- Victoria KerzhnerPharmacist1295919447
- Simon Lukose, DOEndocrinology, Diabetes & Metabolism Physician1295317139
- Patrick Mooney, MDEndocrinology, Diabetes & Metabolism Physician1396320024
Verify Stephen G. Zachariah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 331900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
149 Medicare Part D claims for 58 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Metformin Hcl16 claims
- Ozempic13 claims
- Levothyroxine Sodium12 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: $56.45
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen G. Zachariah among 970 endocrinology, diabetes & metabolism physician records in New York
Stephen G. Zachariah, MD is one of 970 endocrinology, diabetes & metabolism physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 90% of them.
- NPI issued2019 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2019 · median 2004 among the 694 with a school on file
- Record last updated2025 · 59% 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 York 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 York
There are 970 endocrinology, diabetes & metabolism physician records in New York.
All 970 in New York → Every provider in New York → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Richard Arnold, MDNew York, NY 100221750300380
- Conrad Blum, M.D.New York, NY 100221578507018
- Karin Chen, MDNew York, NY 100221477896066
- Victoria Finn, M.D.New York, NY 100221710373212
- Lainie Hurst, M.D.New York, NY 100221013098136
- Emilia Liao, MDNew York, NY 100221639167968
- Simon Lukose, DONew York, NY 100221295317139
- Caroline Messer, MDNew York, NY 100221386855047
Common questions
What is Stephen G. Zachariah, MD's NPI number?
Stephen G. Zachariah, MD's National Provider Identifier (NPI) is 1376005231, issued on Apr 1, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Stephen G. Zachariah, MD located?
The NPPES record lists a practice address at 55 E 55TH St, New York, NY, 10022. Phone: (646) 754-2000. Providers update this record themselves, so call before visiting.
How can I verify Stephen G. Zachariah, MD's license?
NPPES lists New York license number 331900, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen G. Zachariah, MD prescribe under Medicare Part D?
In 2024, Stephen G. Zachariah, MD had 149 Medicare Part D claims for 58 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.