James M. Riddleberger, MD

Hospitals where James M. Riddleberger works

Medicare's Facility Affiliation Data lists James M. Riddleberger at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

• MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · CCN 200009
• Northern Light Mercy HospitalPortland, ME · Acute Care Hospital · CCN 200008

Practice locations

Addresses where James M. Riddleberger is enrolled with Medicare (CMS data updated 2026-10-02).

• 331 Veranda StPortland, ME 04103 (207) 828‑2402
• 50 Forest Falls DrYarmouth, ME 04096

Group practices

Medicare enrollment lists James M. Riddleberger as a member of these groups (CMS data updated 2026-10-02).

• Martin's Point Health Care, Inc.89 clinicians in the group
• Riverview Physical Therapy Limited Partnership63 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Maine →

Other family doctors in Portland

Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.

• Margaret Wheeler, DO
• Julie H. Hurley, DO
• Tobias J. Nicholson, MD
• Gladys Estrada, MD
• Mark Delon Lim, MD
• John E. Royal Ii, MD
• David D. Keller, DO
• Diana Lapp, MD

All family doctors in Portland →

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
4. Medicare Care Compare — official Medicare tool to look up clinicians