Ling Fang Guo, DO
NPI 1164059317ActiveIndividual· Internal Medicine· Hamden, CT
Internal Medicine (DO) with Prohealth Physicians PC, practicing in Hamden, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $26,576 for 282 claims, against $4,693 paid for services in 2024. Lists Yale-New Haven Hospital as a hospital affiliation.
Overview
| NPI | 1164059317 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 26, 2020 |
| Last updated in NPPES | Sep 17, 2024 |
| Certified by provider | Sep 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 77683 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 81 across 24 procedure codes |
| Paid by Medicare | $4,693 |
Part D prescriptions in 2024
| Prescriptions (claims) | 282 · 378 30-day fills |
|---|---|
| Patients | 92 |
| Total drug cost | $26,576 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Prohealth Physicians PCWinsted, CT · 213 clinicians
Hospital affiliation
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Yale New Haven Health - Health at HomeHome health agency · Milford, CT
- Gaylord Hospital IncLong-term care hospital · Wallingford, CT
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Hamden
- 1215956321
- 1275539892
- 1285954180
- 1295721942
- 1306804463
- 1366436537
- 1407960826
- 1427045954
- 1548292279
- 1558355743
- 1568496552
- 1689660771
All 53 internal medicine physicians in Hamden · All internal medicine physicians in Connecticut