What is Oscar Jan's NPI number?

Oscar Jan's National Provider Identifier (NPI) is 1386260826, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Oscar Jan's specialty?

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

Where is Oscar Jan located?

Oscar Jan's practice location on file with NPPES is 13300 Garden Grove Blvd, Garden Grove, CA 92843-2207.

What is Oscar Jan's phone number?

The practice phone number listed in the NPPES registry for Oscar Jan is (714) 246-8400.

Is Oscar Jan's NPI active?

Yes — Oscar Jan's NPI (1386260826) is active in the NPPES registry as of the last update on 2025-09-17.

IndividualActive

Oscar Jan, MS RD

NPI 1386260826 · Registered Dietitian · Garden Grove, CA

Oscar Jan, MS RD is a Registered Dietitian provider in Garden Grove, CA (NPI 1386260826).

Provider details

NPI number: 1386260826
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: MS RD
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Registered DietitianPrimary133V00000X
Dietary & Nutritional Service Providers

Profile Score

Established profile(57/100 index)

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

Registry tenure38% of score
6 yrs in NPPES 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

13300 Garden Grove Blvd

Garden Grove, CA 92843-2207

Phone: (714) 246-8400

Street-level locationGet directions

More CA providers

Mailing address