Tatyana Sergeyeva, MD
NPI 1164599205ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Glen Burnie, MD
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with University of Maryland Community Medical Group Inc, practicing in Glen Burnie, Maryland. Their prescriptions cost Medicare Part D more than their services did: $872,063 for 1,478 claims, against $56,970 paid for services in 2024. Sanofi-Aventis U.S. LLC was the largest of 3 companies reporting payments in 2025, $210.09 in all, mostly food and beverage. Lists University of MD Baltimore Washington Medical Center as a hospital affiliation.
Overview
| NPI | 1164599205 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 30, 2006 |
| Last updated in NPPES | Oct 16, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | D0068091 | MD |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | A94215 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 989 across 14 procedure codes |
| Paid by Medicare | $56,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,478 · 3,720 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $872,063 |
| Generic share | 28% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University of Maryland Community Medical Group IncEaston, MD · 477 clinicians
Hospital affiliation
- University of MD Baltimore Washington Medical CenterGlen Burnie, MD
Industry payments (Open Payments)
- 2025$210.09 · 4 payments from 3 companies
- 2024$745.48 · 35 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sanofi-Aventis U.S. LLC | $129.37 | 1 |
| Corcept Therapeutics | $53.04 | 2 |
| Dexcom, Inc. | $27.68 | 1 |
What the 2025 payments were for
- Food and Beverage$210.09 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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