What is Carolyn Chang's NPI number?

Carolyn Chang's National Provider Identifier (NPI) is 1598588022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Carolyn Chang's specialty?

Carolyn Chang is listed in the NPPES registry with a primary specialty of School Counselor (Behavioral Health & Social Service Providers).

Where is Carolyn Chang located?

Carolyn Chang's practice location on file with NPPES is 1400 Montecito Ave, Mountain View, CA 94043-4590.

What is Carolyn Chang's phone number?

The practice phone number listed in the NPPES registry for Carolyn Chang is (650) 903-6945.

Is Carolyn Chang's NPI active?

Yes — Carolyn Chang's NPI (1598588022) is active in the NPPES registry as of the last update on 2026-02-13.

IndividualActive

Carolyn Chang

NPI 1598588022 · School Counselor · Mountain View, CA

Carolyn Chang is a School Counselor provider in Mountain View, CA (NPI 1598588022).

Provider details

NPI number: 1598588022
Entity type: Individual
Primary specialty: School CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: 250319582 (CA)

Specialties & taxonomies

School CounselorPrimary101YS0200XLicense 250319582 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
1 yr 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

1400 Montecito Ave

Mountain View, CA 94043-4590

Phone: (650) 903-6945

Street-level locationGet directions

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Mailing address