Nastassia De Souza, M.D.
Endocrinology, Diabetes & Metabolism Physician · Bellport, NY
Nastassia De Souza, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Bellport, New York, and NPI 1891178836, issued on Jul 8, 2015. Check the license (New York 323186, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Nastassia De Souza
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 323186 NY
MT209620 PA
Self-reported in NPPES; status is on the state search - Practice location
- 515 Bellport Ave, Bellport, NY 11713
- Phone
- (631) 288-7120
- Enumerated
- Jul 8, 2015
- Record last updated
- Sep 18, 2023
- Fax
- (929) 455-9423
- Medicaid ID
- 103292986 PA
- Medicare enrollment
- Enrolled (PECOS I20230628001030); 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 515 Bellport Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Imrana Ahmed, D.O.Family Medicine Physician1891097416
- Michelle Lorge, FNP-BCFamily Nurse Practitioner1659781524
Verify Nastassia De Souza 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 323186Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,025 Medicare Part D claims for 213 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Mounjaro118 claims
- Ozempic67 claims
- Metformin Hcl Er64 claims
- Januvia62 claims
- Levothyroxine Sodium49 claims
- Glipizide44 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: $404.39
16 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, 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
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nastassia De Souza among 970 endocrinology, diabetes & metabolism physician records in New York
Nastassia De Souza, M.D. 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 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2013 · median 2004 among the 694 with a school on file
- Record last updated2023 · 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 Bellport → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Joshua Feiner, M.D.Bethpage, NY 117141750560421
- Sara Naji RadBethpage, NY 117141184011660
- Craig Perlman, D.O.Bethpage, NY 117141750566402
- Ji Ae YoonBethpage, NY 117141104453745
- Leonard Gioia, M.D.Bay Shore, NY 117061710901558
- Nicoleta Ionica, MDBay Shore, NY 117061033388376
- Gaurav Mandal, MDBay Shore, NY 117061770103459
- Alka Bishnoi, MDW Babylon, NY 117041063467793
Common questions
What is Nastassia De Souza, M.D.'s NPI number?
Nastassia De Souza, M.D.'s National Provider Identifier (NPI) is 1891178836, issued on Jul 8, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nastassia De Souza, M.D. located?
The NPPES record lists a practice address at 515 Bellport Ave, Bellport, NY, 11713. Phone: (631) 288-7120. Providers update this record themselves, so call before visiting.
How can I verify Nastassia De Souza, M.D.'s license?
NPPES lists New York license number 323186, 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 Nastassia De Souza, M.D. prescribe under Medicare Part D?
In 2024, Nastassia De Souza, M.D. had 1,025 Medicare Part D claims for 213 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.