NANCY S.S. CHANG M.D. - NPI 1386635621 - Internal Medicine in Oceanside, CA

Q: What is Nancy Chang's NPI number?

The NPI number for Nancy Chang is 1386635621. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Q: What is Nancy Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Nancy Chang was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

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About Nancy S.s. Chang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NANCY S.S. CHANG M.D. (NPI 1386635621) is an individual internal medicine provider in Oceanside, California, licensed in California (A40339) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1386635621

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameNANCY S.S. CHANGCredential: M.D.

Location Address3142 VISTA WAY, STE 100Oceanside, CA 92056-3619

Mailing Address3142 Vista Way, Ste 303Oceanside, CA 92056-3619 · (760) 630-2655 · Fax (760) 630-3542

Phone(760) 721-3200

Fax(760) 754-3855

Sole ProprietorNo

Enumeration DateNovember 4, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1386635621 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A40339

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

3142 VISTA WAY, Oceanside, CA 92056

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