What is Karryn Messmer's NPI number?

Karryn Messmer's National Provider Identifier (NPI) is 1679956759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Karryn Messmer's specialty?

Karryn Messmer is listed in the NPPES registry with a primary specialty of Health Educator (Other Service Providers).

Where is Karryn Messmer located?

Karryn Messmer's practice location on file with NPPES is 785 Halyard St, Port Hueneme, CA 93041-1238.

What is Karryn Messmer's phone number?

The practice phone number listed in the NPPES registry for Karryn Messmer is (805) 289-0120.

Is Karryn Messmer's NPI active?

Yes — Karryn Messmer's NPI (1679956759) is active in the NPPES registry as of the last update on 2025-09-05.

IndividualActive

Karryn Messmer

NPI 1679956759 · Health Educator · Port Hueneme, CA

Karryn Messmer is a Health Educator provider in Port Hueneme, CA (NPI 1679956759).

Provider details

NPI number: 1679956759
Entity type: Individual
Primary specialty: Health EducatorOther Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Health EducatorPrimary174H00000X
Other Service Providers

Profile Score

Established profile(67/100 index)

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

Registry tenure38% of score
10 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

785 Halyard St

Port Hueneme, CA 93041-1238

Phone: (805) 289-0120

Street-level locationGet directions

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Mailing address