What is Walter Alt's NPI number?

Walter Alt's National Provider Identifier (NPI) is 1831147073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Walter Alt's specialty?

Walter Alt is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Walter Alt located?

Walter Alt's practice location on file with NPPES is 5 East Main Street, Merrimac, MA 01860.

What is Walter Alt's phone number?

The practice phone number listed in the NPPES registry for Walter Alt is (978) 346-9733.

Is Walter Alt's NPI active?

Yes — Walter Alt's NPI (1831147073) is active in the NPPES registry as of the last update on 2011-12-13.

IndividualActive

Walter Alt, M.D.

NPI 1831147073 · Family Medicine Physician · Merrimac, MA

Walter Alt, M.D. is a Family Medicine Physician provider in Merrimac, MA (NPI 1831147073).

Provider details

NPI number: 1831147073
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 81973 (MA)

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense 81973 (MA)
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

5 East Main Street

Lahey Merrimac

Merrimac, MA 01860

Phone: (978) 346-9733

Street-level locationGet directions

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Mailing address