What is Joan Chang's NPI number?

Joan Chang's National Provider Identifier (NPI) is 1578636676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joan Chang's specialty?

Joan Chang is listed in the NPPES registry with a primary specialty of Acupuncturist (Other Service Providers).

Where is Joan Chang located?

Joan Chang's practice location on file with NPPES is 1416 Tennessee St Ste 5, Vallejo, CA 94590-4647.

What is Joan Chang's phone number?

The practice phone number listed in the NPPES registry for Joan Chang is (707) 557-3680.

Is Joan Chang's NPI active?

Yes — Joan Chang's NPI (1578636676) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Joan Chang, L.AC.,PH.D.

NPI 1578636676 · Acupuncturist · Vallejo, CA

Joan Chang, L.AC.,PH.D. is a Acupuncturist provider in Vallejo, CA (NPI 1578636676).

Provider details

NPI number: 1578636676
Entity type: Individual
Primary specialty: AcupuncturistOther Service Providers
Credential: L.AC.,PH.D.
Sex: Female
Sole proprietor: Yes
License: AC1334 (CA)

Specialties & taxonomies

AcupuncturistPrimary171100000XLicense AC1334 (CA)
Other Service Providers

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 yrs in NPPES 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

1416 Tennessee St Ste 5

Vallejo, CA 94590-4647

Phone: (707) 557-3680

Fax: (707) 557-2589

Street-level locationGet directions

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Mailing address