Alla Mikhaylovna Guenin, MD
NPI 1275802324ActiveIndividual· Internal Medicine· Salem, MA
Internal Medicine (MD) with Charter Health PC, practicing in Salem, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $1,268,432 for 12,990 claims, against $62,795 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 8 companies reporting payments in 2025, $390.25 in all, mostly food and beverage. Lists Brigham and Women's Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1275802324 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 19, 2011 |
| Last updated in NPPES | Oct 29, 2025 |
| Certified by provider | Oct 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 276753 | MA |
| Clinic/Center, Primary Care | 261QP2300X | 276753 | 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 | 188 |
|---|---|
| Services billed | 1,271 across 36 procedure codes |
| Paid by Medicare | $62,795 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,990 · 19,763 30-day fills |
|---|---|
| Patients | 656 |
| Total drug cost | $1,268,432 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Charter Health PCSalem, MA · 28 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
Other facilities
- Mass General Brigham Home Care, IncHome health agency · Newton, MA
- All Care Hospice IncHospice · Lynn, MA
- Care Dimensions, IncHospice · Danvers, MA
- Spaulding Rehabilitation HospitalInpatient rehabilitation facility · Charlestown, MA
Industry payments (Open Payments)
- 2025$390.25 · 11 payments from 8 companies
- 2024$246.85 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $212.11 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $33.48 | 1 |
| Novartis Pharmaceuticals Corporation | $32.18 | 1 |
| Indivior Inc. | $29.03 | 1 |
| Revance Therapeutics, Inc. | $25.09 | 1 |
What the 2025 payments were for
- Food and Beverage$390.25 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 69 internal medicine physicians in Salem · All internal medicine physicians in Massachusetts