Diana Norwich
Endocrinology, Diabetes & Metabolism Physician · New York, NY
Diana Norwich is an endocrinology, diabetes & metabolism physician with a practice address in New York, New York, and NPI 1114546710, issued on Apr 13, 2020. Check the license (New York 322560, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Diana Norwich
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 322560 NY
Self-reported in NPPES; status is on the state search - Practice location
- 55 E 34TH St FL 6, New York, NY 10016
- Phone
- (212) 252-6020
- Enumerated
- Apr 13, 2020
- Record last updated
- May 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20251215001980); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2021
- 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 34TH St FL 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Akshan PuarEndocrinology, Diabetes & Metabolism Physician1548642648
- Ramadurgam Poliki Mo Reddy, MDEndocrinology, Diabetes & Metabolism Physician1225460884
Verify Diana Norwich 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 322560Check 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
151 Medicare Part D claims for 46 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Levothyroxine Sodium20 claims
- Ozempic18 claims
- Jardiance15 claims
- Trulicity15 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 one group practice
- Icahn School OF Medicine AT Mount SinaiNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Norwich among 970 endocrinology, diabetes & metabolism physician records in New York
Diana Norwich 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 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 3% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2021 · 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
- Recaredo Berbano, MDNew York, NY 100161942275748
- Veronica CataneseNew York, NY 100161750491759
- Loren Greene, M.D.New York, NY 100161881607810
- Gillian Katz, MDNew York, NY 100161386643625
- Sanjiv Kinkhabwala, MDNew York, NY 100161154320067
- Valerie Peck, MDNew York, NY 100161730103011
- Julie Probst-Riordan, M.D.New York, NY 100161548278609
- Stephen Richardson, MDNew York, NY 100161144328261
Common questions
What is Diana Norwich's NPI number?
Diana Norwich's National Provider Identifier (NPI) is 1114546710, issued on Apr 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Diana Norwich located?
The NPPES record lists a practice address at 55 E 34TH St FL 6, New York, NY, 10016. Phone: (212) 252-6020. Providers update this record themselves, so call before visiting.
How can I verify Diana Norwich's license?
NPPES lists New York license number 322560, 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 Diana Norwich prescribe under Medicare Part D?
In 2024, Diana Norwich had 151 Medicare Part D claims for 46 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.