What is Johanna Guy's NPI number?

Johanna Guy's National Provider Identifier (NPI) is 1932051554, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Johanna Guy's specialty?

Johanna Guy is listed in the NPPES registry with a primary specialty of Licensed Vocational Nurse (Nursing Service Providers).

Where is Johanna Guy located?

Johanna Guy's practice location on file with NPPES is 18949 Redwood Rd, Castro Valley, CA 94546-3153.

What is Johanna Guy's phone number?

The practice phone number listed in the NPPES registry for Johanna Guy is (510) 881-1606.

Is Johanna Guy's NPI active?

Yes — Johanna Guy's NPI (1932051554) is active in the NPPES registry as of the last update on 2026-02-14.

IndividualActive

Johanna Guy, LVN

NPI 1932051554 · Licensed Vocational Nurse · Castro Valley, CA

Johanna Guy, LVN is a Licensed Vocational Nurse provider in Castro Valley, CA (NPI 1932051554).

Provider details

NPI number: 1932051554
Entity type: Individual
Primary specialty: Licensed Vocational NurseNursing Service Providers
Credential: LVN
Sex: Female
Sole proprietor: Yes
License: VN233016 (CA)

Specialties & taxonomies

Licensed Vocational NursePrimary164X00000XLicense VN233016 (CA)
Nursing 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

18949 Redwood Rd

Castro Valley, CA 94546-3153

Phone: (510) 881-1606

Street-level locationGet directions

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Mailing address