Quick answers
- Which hospitals does Douglas H. Mackay work at?
- Medicare's official clinician data lists Douglas H. Mackay at 1 hospital: Meadville Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Douglas H. Mackay see patients?
- Medicare's clinician data lists 1 practice location in Mercer, PA. Call before your visit to confirm the address.
- What is Douglas H. Mackay's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Douglas H. Mackay accept Medicare assignment?
- Yes. Medicare's clinician data says Douglas H. Mackay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Douglas H. Mackay?
- (724) 662-4155, as listed in official Medicare / NPI Registry data.
- What is Douglas H. Mackay's NPI number?
- 1700871027. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Douglas H. Mackay works
Medicare's Facility Affiliation Data lists Douglas H. Mackay at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Meadville Medical CenterMeadville, PA · Acute Care Hospital · CCN 390113
Practice locations
Addresses where Douglas H. Mackay is enrolled with Medicare (CMS data updated 2026-10-02).
- 315 S Erie St, Suite EMercer, PA 16137 (724) 662‑4155
Group practices
Medicare enrollment lists Douglas H. Mackay as a member of this group (CMS data updated 2026-10-02).
- Meadville Medical Center143 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700871027 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians