What is William Derr's NPI number?

William Derr's National Provider Identifier (NPI) is 1972514560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Derr's specialty?

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

Where is William Derr located?

William Derr's practice location on file with NPPES is 299 Carew St, Springfield, MA 01104.

What is William Derr's phone number?

The practice phone number listed in the NPPES registry for William Derr is (413) 736-1833.

Is William Derr's NPI active?

Yes — William Derr's NPI (1972514560) is active in the NPPES registry as of the last update on 2014-06-09.

IndividualActive

William Derr, OD

NPI 1972514560 · Optometrist · Springfield, MA

William Derr, OD is a Optometrist provider in Springfield, MA (NPI 1972514560).

Provider details

NPI number: 1972514560
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: OD
Sex: Male
Sole proprietor: No
License: 4300 (MA)

Specialties & taxonomies

OptometristPrimary152W00000XLicense 4300 (MA)
Eye and Vision Services Providers

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
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

299 Carew St

Suite 201

Springfield, MA 01104

Phone: (413) 736-1833

Fax: (413) 781-1899

Street-level locationGet directions

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Mailing address