What is Nancy Chang's NPI number?

Nancy Chang's National Provider Identifier (NPI) is 1386635621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nancy Chang's specialty?

Nancy Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Nancy Chang located?

Nancy Chang's practice location on file with NPPES is 3142 Vista Way, Oceanside, CA 92056-3619.

What is Nancy Chang's phone number?

The practice phone number listed in the NPPES registry for Nancy Chang is (760) 721-3200.

Is Nancy Chang's NPI active?

Yes — Nancy Chang's NPI (1386635621) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Nancy Chang, M.D.

NPI 1386635621 · Internal Medicine Physician · Oceanside, CA

Nancy Chang, M.D. is a Internal Medicine Physician provider in Oceanside, CA (NPI 1386635621).

Provider details

NPI number: 1386635621
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
License: A40339 (CA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense A40339 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
20 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

3142 Vista Way

Ste 100

Oceanside, CA 92056-3619

Phone: (760) 721-3200

Fax: (760) 754-3855

Street-level locationGet directions

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Mailing address