What is Gregory Karr's NPI number?

Gregory Karr's National Provider Identifier (NPI) is 1740351949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gregory Karr's specialty?

Gregory Karr is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).

Where is Gregory Karr located?

Gregory Karr's practice location on file with NPPES is 431 Summit St, Elgin, IL 60120-3861.

What is Gregory Karr's phone number?

The practice phone number listed in the NPPES registry for Gregory Karr is (847) 742-6717.

Is Gregory Karr's NPI active?

Yes — Gregory Karr's NPI (1740351949) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Gregory Karr, DDS

NPI 1740351949 · Dentist · Elgin, IL

Gregory Karr, DDS is a Dentist provider in Elgin, IL (NPI 1740351949).

Provider details

NPI number: 1740351949
Entity type: Individual
Primary specialty: DentistDental Providers
Credential: DDS
Sex: Male
Sole proprietor: Yes
License: 01919004 (IL)

Specialties & taxonomies

DentistPrimary122300000XLicense 01919004 (IL)
Dental Providers

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 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

431 Summit St

Suite 105

Elgin, IL 60120-3861

Phone: (847) 742-6717

Fax: (847) 742-3951

Street-level locationGet directions

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Mailing address