Quick answers
- Which hospitals does David D. Keller work at?
- Medicare's official clinician data lists David D. Keller at 1 hospital: MaineHealth Maine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David D. Keller see patients?
- Medicare's clinician data lists 3 practice locations, including Portland, ME and South Portland, ME. Call before your visit to confirm the address.
- What is David D. Keller's specialty?
- Medicare lists Family Practice as the primary specialty, and also Osteopathic Manipulative Medicine.
- Does David D. Keller accept Medicare assignment?
- Yes. Medicare's clinician data says David D. Keller 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 David D. Keller?
- (207) 347-3164, as listed in official Medicare / NPI Registry data.
- What is David D. Keller's NPI number?
- 1861448201. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David D. Keller works
Medicare's Facility Affiliation Data lists David D. Keller 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
Practice locations
Addresses where David D. Keller is enrolled with Medicare (CMS data updated 2026-10-02).
- 195 Fore River Pkwy, Suite 470Portland, ME 04102 (207) 347‑3164
- 22 Bramhall StPortland, ME 04102 (207) 347‑3164
- 85 E StSouth Portland, ME 04106 (207) 347‑3164
Group practices
Medicare enrollment lists David D. Keller as a member of this group (CMS data updated 2026-10-02).
- Hospital Osteopathic Manipulative Medicine PC7 clinicians in the group
Specialties
Other family doctors in Portland
Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861448201 |
| 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