Humayun Abbas, MD
NPI 1336136548ActiveIndividual· Internal Medicine· Modesto, CA
Internal Medicine (MD) with Shane Speirs MD PC, practicing in Modesto, California. Their prescriptions cost Medicare Part D more than their services did: $1,283,552 for 16,244 claims, against $160,855 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 11 companies reporting payments in 2025, $305.68 in all, mostly food and beverage. Lists Adventist Health Sonora and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1336136548 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 3, 2005 |
| Last updated in NPPES | Mar 29, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A68455 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 394 |
|---|---|
| Services billed | 7,604 across 42 procedure codes |
| Paid by Medicare | $160,855 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16,244 · 32,512 30-day fills |
|---|---|
| Patients | 963 |
| Total drug cost | $1,283,552 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Shane Speirs MD PCManteca, CA · 13 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Doctors Medical CenterModesto, CA
- Emanuel Medical CenterTurlock, CA
- Memorial Medical CenterModesto, CA
- Stanford Health CareStanford, CA
Other facilities
- Careone Home Health and Hospice, IncHome health agency · Salida, CA
- Sutter Care at HomeHome health agency · Salida, CA
- Community Hospice, Inc - HospiceHospice · Modesto, CA
Industry payments (Open Payments)
- 2025$305.68 · 14 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $44.86 | 2 |
| Abbott Laboratories | $35.60 | 2 |
| Pfizer Inc. | $31.51 | 1 |
| Novartis Pharmaceuticals Corporation | $30.95 | 1 |
| Astrazeneca Pharmaceuticals LP | $28.03 | 2 |
What the 2025 payments were for
- Food and Beverage$305.68 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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