Ann M. Gryboski, MD
NPI 1053389924ActiveIndividual· Internal Medicine· South Yarmouth, MA
Internal Medicine (MD) in South Yarmouth, Massachusetts, trained at Tufts University School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $452,015 for 8,670 claims, against $223,665 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $162.51 in all, mostly food and beverage.
Overview
| NPI | 1053389924 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 8, 2006 |
| Last updated in NPPES | Jun 18, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 58129 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 560 |
|---|---|
| Services billed | 8,267 across 70 procedure codes |
| Paid by Medicare | $223,665 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,670 · 21,365 30-day fills |
|---|---|
| Patients | 671 |
| Total drug cost | $452,015 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Medical Affiliates of Cape Cod IncHyannis, MA · 229 clinicians
Hospital affiliations
- Cape Cod HospitalHyannis, MA
- Falmouth HospitalFalmouth, MA
Other facilities
- Bayada Home Health Care , IncHome health agency · Hyannis, MA
- Centerwell Home HealthHome health agency · Sandwich, MA
- Vna of Cape CodHome health agency · South Dennis, MA
- Visiting Nurse Association of Cape Cod HospiceHospice · Hyannis, MA
- Spaulding Rehabilitation Hospital - Cape CodInpatient rehabilitation facility · East Sandwich, MA
Industry payments (Open Payments)
- 2025$162.51 · 7 payments from 3 companies
- 2024$170.51 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $127.87 | 5 |
| Glaxosmithkline, LLC. | $18.35 | 1 |
| Novo Nordisk Inc | $16.29 | 1 |
What the 2025 payments were for
- Food and Beverage$162.51 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in South Yarmouth
- 1265205066
- 1013983402
- 1285602771
- 1629091608