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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN F KEOHAN DDS
NPI 1588783252
Dentist in Cambridge, MA

Active since March 27, 2007
310 CAMBRIDGE ST, CAMBRIDGE, MA 02141(617) 876-7238(617) 868-8650 Get Directions Write a Review

NPPES record last updated: November 8, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About John F Keohan Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN F KEOHAN DDS (NPI 1588783252) is an individual dentist in Cambridge, Massachusetts, licensed in Massachusetts (10909) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1588783252
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameJOHN F KEOHANCredential: DDS
Location Address310 CAMBRIDGE STCambridge, MA 02141-1203
Mailing Address310 Cambridge StCambridge, MA 02141-1203 · (617) 876-7238 · Fax (617) 868-8650
Phone(617) 876-7238
Fax(617) 868-8650
Sole ProprietorYes
Enumeration DateMarch 27, 2007
Last NPPES UpdateNovember 8, 2026
✔ NPI 1588783252 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in MA · 10909
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
310 CAMBRIDGE ST, Cambridge, MA 02141
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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTINA KNIGHT N.P.
Nurse Practitioner
310 CAMBRIDGE ST
CAMBRIDGE, MA 02141
Middlesex County (508) 254-8125

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Keohan's NPI number?

The NPI number for John Keohan is 1588783252. It was assigned to this individual provider in the NPPES registry on March 27, 2007.

Where is John Keohan located?

John Keohan practices at 310 Cambridge St, Cambridge, MA 02141. The listed phone number is (617) 876-7238.

What is John Keohan's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

When was this NPI record last updated?

The NPPES record for John Keohan was last updated on November 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.