Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. RONALD P. CHAO M.D.
NPI 1154597417
Plastic Surgery in Carlsbad, CA

Q: What is Ronald Chao's NPI number?

The NPI number for Ronald Chao is 1154597417. It was assigned to this individual provider in the NPPES registry on May 6, 2008.

Q: What is Ronald Chao's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Chao was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 06, 2008

2520 MARRON RD APT 103, CARLSBAD, CA 92010(310) 926-5408 Get Directions Write a Review

NPPES record last updated: October 22, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Ronald P. Chao M.d. NPPES

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

DR. RONALD P. CHAO M.D. (NPI 1154597417) is an individual plastic surgery provider in Carlsbad, California, licensed in California (A81490) and active in the NPI registry since May 2008.

NPPES Registry Identity

NPI1154597417

Entity TypeIndividualMale

Primary Taxonomy208200000X

Provider Legal NameDR. RONALD P. CHAOCredential: M.D.

Location Address2520 MARRON RD APT 103Carlsbad, CA 92010-8386

Mailing Address2520 Marron Rd Apt 103Carlsbad, CA 92010-8386 · (310) 926-5408

Phone(310) 926-5408

Sole ProprietorYes

Enumeration DateMay 6, 2008

Last NPPES UpdateOctober 22, 2026

NPPES CertifiedOctober 22, 2026

✔ NPI 1154597417 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPlastic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208200000X

License✔ Licensed in CA · A81490

Definition

A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.

2520 MARRON RD APT 103, Carlsbad, CA 92010

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ronald Chao's NPI number?

The NPI number for Ronald Chao is 1154597417. It was assigned to this individual provider in the NPPES registry on May 6, 2008.

Where is Ronald Chao located?

Ronald Chao practices at 2520 Marron Rd Apt 103, Carlsbad, CA 92010. The listed phone number is (310) 926-5408.

What is Ronald Chao's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

When was this NPI record last updated?

The NPPES record for Ronald Chao was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.