What is Thomas Callan's NPI number?

Thomas Callan's National Provider Identifier (NPI) is 1043348394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Callan's specialty?

Thomas Callan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Thomas Callan located?

Thomas Callan's practice location on file with NPPES is 675 Ygnacio Valley Rd, Walnut Creek, CA 94596-3860.

What is Thomas Callan's phone number?

The practice phone number listed in the NPPES registry for Thomas Callan is (925) 933-0270.

Is Thomas Callan's NPI active?

Yes — Thomas Callan's NPI (1043348394) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Thomas Callan, OD

NPI 1043348394 · Optometrist · Walnut Creek, CA

Thomas Callan, OD is a Optometrist provider in Walnut Creek, CA (NPI 1043348394).

Provider details

NPI number: 1043348394
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: OD
Sex: Male
Sole proprietor: Yes
License: OPT 7749 TPG (CA)

Specialties & taxonomies

OptometristPrimary152W00000XLicense OPT 7749 TPG (CA)
Eye and Vision Services Providers

Profile Score

Detailed profile(89/100 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

675 Ygnacio Valley Rd

Suite B103

Walnut Creek, CA 94596-3860

Phone: (925) 933-0270

Fax: (925) 933-4721

Street-level locationGet directions

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Mailing address