What is Mark Muster's NPI number?

Mark Muster's National Provider Identifier (NPI) is 1578422689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Muster's specialty?

Mark Muster is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Mark Muster located?

Mark Muster's practice location on file with NPPES is 1304 San Blanco Dr, Salinas, CA 93901-1749.

What is Mark Muster's phone number?

The practice phone number listed in the NPPES registry for Mark Muster is (831) 250-3004.

Is Mark Muster's NPI active?

Yes — Mark Muster's NPI (1578422689) is active in the NPPES registry as of the last update on 2026-01-16.

IndividualActive

Mark Muster, MS, RD

NPI 1578422689 · Registered Dietitian · Salinas, CA

Mark Muster, MS, RD is a Registered Dietitian provider in Salinas, CA (NPI 1578422689).

Provider details

NPI number: 1578422689
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: MS, RD
Sex: Male
Sole proprietor: Yes
License: 86102715 (CA)

Specialties & taxonomies

Registered DietitianPrimary133V00000XLicense 86102715 (CA)
Dietary & Nutritional Service Providers

Profile Score

Established profile(53/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

1304 San Blanco Dr

Salinas, CA 93901-1749

Phone: (831) 250-3004

Street-level locationGet directions

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Mailing address