Gunther Ottersbach, M.D.
NPI 1215114533ActiveIndividual· Internal Medicine· La Mesa, CA
Internal Medicine (M.D.) with Emergency and Acute Care Medical Corporation and 1 other group, practicing in La Mesa, California. In 2024 Medicare paid $82,123 for 161 patients, and Part D covered 593 of their prescriptions, 87% of them generic. Genzyme Corporation was the largest of 3 companies reporting payments in 2025, $78.40 in all, mostly food and beverage. Lists Grossmont Hospital as a hospital affiliation.
Overview
| NPI | 1215114533 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 29, 2008 |
| Last updated in NPPES | Sep 6, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A110590 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 161 |
|---|---|
| Services billed | 893 across 12 procedure codes |
| Paid by Medicare | $82,123 |
Part D prescriptions in 2024
| Prescriptions (claims) | 593 · 612 30-day fills |
|---|---|
| Patients | 221 |
| Total drug cost | $44,175 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Emergency and Acute Care Medical CorporationLa Mesa, CA · 422 clinicians
- San Diego Critical Care Medical Group IncLa Mesa, CA · 78 clinicians
Hospital affiliation
- Grossmont HospitalLa Mesa, CA
Industry payments (Open Payments)
- 2025$78.40 · 3 payments from 3 companies
- 2024$116.97 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $35.05 | 1 |
| Abbvie Inc. | $29.07 | 1 |
| Glaxosmithkline, LLC. | $14.28 | 1 |
What the 2025 payments were for
- Food and Beverage$78.40 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 91 internal medicine physicians in La Mesa · All internal medicine physicians in California