Quick answers
- Which hospitals does Thomas A. Zarka work at?
- Medicare's official clinician data lists Thomas A. Zarka at 2 hospitals: Catholic Medical Center and Parkland Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas A. Zarka see patients?
- Medicare's clinician data lists 2 practice locations, including Derry, NH. Call before your visit to confirm the address.
- What is Thomas A. Zarka's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Thomas A. Zarka accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas A. Zarka 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.
- Does Thomas A. Zarka offer telehealth?
- Medicare's clinician data says Thomas A. Zarka offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Thomas A. Zarka?
- (603) 432-1500, as listed in official Medicare / NPI Registry data.
- What is Thomas A. Zarka's NPI number?
- 1972587913. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thomas A. Zarka works
Medicare's Facility Affiliation Data lists Thomas A. Zarka at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Catholic Medical CenterManchester, NH · Acute Care Hospital · CCN 300034
- Parkland Medical CenterDerry, NH · Acute Care Hospital · CCN 300017
Practice locations
Addresses where Thomas A. Zarka is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Parkland DrDerry, NH 03038 (603) 432‑1500
- 44 Birch St, Suite 200Derry, NH 03038 (603) 421‑9616
Group practices
Medicare enrollment lists Thomas A. Zarka as a member of this group (CMS data updated 2026-10-02).
- Parkland Physician Services Inc19 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in New Hampshire
Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | St. Louis College Of Physicians And Surgeons |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972587913 |
| 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