What is William Alder's NPI number?

William Alder's National Provider Identifier (NPI) is 1902839871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Alder's specialty?

William Alder is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is William Alder located?

William Alder's practice location on file with NPPES is 660 Prospect Ave, Hartford, CT 06105-4230.

What is William Alder's phone number?

The practice phone number listed in the NPPES registry for William Alder is (860) 232-1844.

Is William Alder's NPI active?

Yes — William Alder's NPI (1902839871) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

William Alder, MD

NPI 1902839871 · Psychiatry Physician · Hartford, CT

William Alder, MD is a Psychiatry Physician provider in Hartford, CT (NPI 1902839871).

Provider details

NPI number: 1902839871
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: Yes
License: CT016340 (CT)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense CT016340 (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
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

660 Prospect Ave

Hartford, CT 06105-4230

Phone: (860) 232-1844

Fax: (860) 233-3246

Street-level locationGet directions

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Mailing address