NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Martin Mark Keibel

Family Medicine Physician in Manchester, CT · enumerated 2006 · practices at Family Medicine Center.

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

National Provider Identifier

1427067339

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Martin Mark Keibel
Sex Male
Practice address Manchester, CT, 06040
Phone (860) 646-4334
Fax (860) 646-7020
Enumeration date Aug 7, 2006
Last updated in NPPES Oct 31, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 023567 (CT) Primary

Other identifiers

Identifier Type State Issuer
P00064445 Other CT MEDICARE RR

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 does Martin Keibel practice?
The practice location on file with NPPES is in Manchester, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Martin Keibel?
The National Provider Identifier (NPI) for Martin Keibel is 1427067339, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-31.