Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David D Keller Do PC

Family Medicine Physician in Portland, ME · enumerated 2018 · authorized official David Keller, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1417428848

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name David D Keller Do PC

Practice address 195 Fore River Pkwy Ste 470, Portland, ME, 04102

Phone (207) 347-3164

Fax (207) 899-3195

Enumeration date Dec 11, 2018

Last updated in NPPES Dec 11, 2018

Taxonomy & classification

204D00000X Neuromusculoskeletal Medicine & OMM Physician Allopathic & Osteopathic Physicians Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Keller

Title Owner

Phone (207) 347-3164

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is David D Keller Do PC located?

The practice location on file with NPPES is in Portland, ME.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-12-11. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-11.