What is John Defrance's NPI number?

John Defrance's National Provider Identifier (NPI) is 1679515381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Defrance's specialty?

John Defrance is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).

Where is John Defrance located?

John Defrance's practice location on file with NPPES is 27 Hospital Ave, Danbury, CT 06810-5954.

What is John Defrance's phone number?

The practice phone number listed in the NPPES registry for John Defrance is (203) 797-1811.

Is John Defrance's NPI active?

Yes — John Defrance's NPI (1679515381) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

John Defrance, M.D.

NPI 1679515381 · Surgery Physician · Danbury, CT

John Defrance, M.D. is a Surgery Physician provider in Danbury, CT (NPI 1679515381).

Provider details

NPI number: 1679515381
Entity type: Individual
Primary specialty: Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
License: 017831 (CT)

Specialties & taxonomies

Surgery PhysicianPrimary208600000XLicense 017831 (CT)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

27 Hospital Ave

Danbury, CT 06810-5954

Phone: (203) 797-1811

Street-level locationGet directions

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Mailing address