What is Elisa O'Riordan's NPI number?

Elisa O'Riordan's National Provider Identifier (NPI) is 1821936808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Elisa O'Riordan's specialty?

Elisa O'Riordan is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Elisa O'Riordan located?

Elisa O'Riordan's practice location on file with NPPES is 2215 Fuller Rd, Ann Arbor, MI 48105-2303.

What is Elisa O'Riordan's phone number?

The practice phone number listed in the NPPES registry for Elisa O'Riordan is (734) 222-6173.

Is Elisa O'Riordan's NPI active?

Yes — Elisa O'Riordan's NPI (1821936808) is active in the NPPES registry as of the last update on 2026-03-23.

IndividualActive

Elisa O'Riordan, MA, RD

NPI 1821936808 · Registered Dietitian · Ann Arbor, MI

Elisa O'Riordan, MA, RD is a Registered Dietitian provider in Ann Arbor, MI (NPI 1821936808).

Provider details

NPI number: 1821936808
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: MA, RD
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Registered DietitianPrimary133V00000X
Dietary & Nutritional Service Providers

Profile Score

Basic profile(46/100 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
83% 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

2215 Fuller Rd

Ann Arbor, MI 48105-2303

Phone: (734) 222-6173

Street-level locationGet directions

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Mailing address