Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. David D Keller, DO

Individual provider Family Medicine Physician · NPI 1861448201

Dr. David D Keller, DO is registered under Family Practice in Portland, Maine. Graduated from Philadelphia College of Osteopathic Medicine in 2002, 24 years ago. Practices with Hospital Osteopathic Manipulative Medicine PC, an 8-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
24
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
ME
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1250 Forest Ave
Portland, ME 04103-1884
Phone: (207) 347-3164
Fax: (207) 878-5043
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 1819 (ME)

Record details

NPI number1861448201
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Also practisesOSTEOPATHIC MANIPULATIVE MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2002 (24 years in practice)
Group practice Hospital Osteopathic Manipulative Medicine Pc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients130
Services billed 441 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hospital Osteopathic Manipulative Medicine PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

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