John J. Croke, MD
NPI 1013994649ActiveIndividual· Dermatology· Boston, MA
Dermatology (MD) in Boston, Massachusetts, trained at Tufts University School of Medicine (class of 1986). 773 Medicare patients in 2024, $428,705 paid; nearly all of their 1,464 Part D prescriptions were generic (90%). Leo Pharma Inc. was the largest of 13 companies reporting payments in 2025, $1,357 in all, mostly food and beverage.
Overview
| NPI | 1013994649 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 23, 2005 |
| Last updated in NPPES | May 20, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 59427 | 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 - Dermatology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 773 |
|---|---|
| Services billed | 11,608 across 34 procedure codes |
| Paid by Medicare | $428,705 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,464 · 1,622 30-day fills |
|---|---|
| Patients | 456 |
| Total drug cost | $265,500 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Dermatology |
Medical group
- South Shore Dermatology Physicians PCNorth Easton, MA · 13 clinicians
Hospital affiliation
- Signature Healthcare Brockton HospitalBrockton, MA
Industry payments (Open Payments)
- 2025$1,357 · 49 payments from 13 companies
- 2024$647.48 · 23 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Leo Pharma Inc. | $496.66 | 18 |
| Janssen Biotech, Inc. | $218.39 | 8 |
| Ucb, Inc. | $149.95 | 3 |
| Novartis Pharmaceuticals Corporation | $112.08 | 5 |
| Amgen Inc. | $95.85 | 3 |
What the 2025 payments were for
- Food and Beverage$1,257 · 48 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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