Sergei L. Aish, M.D.
NPI 1902867922ActiveIndividual· Family Medicine· Framingham, MA
Family Medicine (M.D.) with Charles River Medical Associates, PC, practicing in Framingham, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $266,029 for 4,322 claims, against $125,331 paid for services in 2024. Pfizer Inc. reported $19.35 in payments in 2025, mostly food and beverage. Lists Brigham and Women Faulkner Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1902867922 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2006 |
| Last updated in NPPES | Aug 23, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 226679 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 175 |
|---|---|
| Services billed | 1,992 across 35 procedure codes |
| Paid by Medicare | $125,331 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,322 · 9,897 30-day fills |
|---|---|
| Patients | 314 |
| Total drug cost | $266,029 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Charles River Medical Associates, PCHudson, MA · 119 clinicians
Hospital affiliations
- Brigham and Women Faulkner HospitalJamaica Plain, MA
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
- Metrowest Medical CenterFramingham, MA
- Newton-Wellesley HospitalNewton, MA
Other facilities
- Mass General Brigham Home Care, IncHome health agency · Newton, MA
- Metrowest Homecare and Hospice, An Amedisys CompanyHome health agency · Marlborough, MA
- Natick Walpole Visiting Nurse AssociationHome health agency · Walpole, MA
- Spaulding Rehabilitation HospitalInpatient rehabilitation facility · Charlestown, MA
Industry payments (Open Payments)
- 2025$19.35 · 1 payment from 1 company
- 2024$48.78 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $19.35 | 1 |
What the 2025 payments were for
- Food and Beverage$19.35 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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