NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Joan Salge Blake, M.S.,R.D.,L.D.N

Nutritionist in Wayland, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750492567

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Registry record

Entity type Individual (Type 1)
Name Ms. Joan Salge Blake
Credential M.S.,R.D.,L.D.N
Sex Female
Practice address Wayland, MA, 01778
Phone (508) 358-4900
Enumeration date Aug 31, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers · License 35 (MA) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

Other identifiers

Identifier Type State Issuer
AA2107 Other MA HARVARD PILGRIM
LD0028 Other MA BLUE CROSS BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Joan Blake practice?
The practice location on file with NPPES is in Wayland, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joan Blake?
The National Provider Identifier (NPI) for Joan Blake is 1750492567, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.