Tatiana Marie Mamantov, MD
NPI 1629069059ActiveIndividual· Emergency Medicine· Castro Valley, CA
Emergency Medicine (MD) in Castro Valley, California, trained at East Tennessee State University Quillen College of Medicine (class of 1984). Mostly services rather than prescriptions: Medicare paid $2,316 for 23 patients in 2024, with only 40 Part D claims.
Overview
| NPI | 1629069059 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 3, 2005 |
| Last updated in NPPES | Jul 30, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | G85179 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 31 across 11 procedure codes |
| Paid by Medicare | $2,316 |
Part D prescriptions in 2024
| Prescriptions (claims) | 40 · 40 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $707.25 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | East Tennessee State University Quillen College of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Medical Toxicology |
Medical group
- Sharp Rees-Stealy Medical Group IncSan Diego, CA · 884 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 emergency medicine physicians in Castro Valley · All emergency medicine physicians in California