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WUN-LING CHANG, M.D., INC.
NPI 1447267141
Internal Medicine - Infectious Disease in La Jolla, CA

Active since August 02, 2006
9888 GENESEE AVE, LA JOLLA, CA 92037(858) 202-1736(858) 202-1796 Get Directions Write a Review

NPPES record last updated: April 25, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Wun-ling Chang, M.d., Inc. NPPES

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

WUN-LING CHANG, M.D., INC. (NPI 1447267141) is a healthcare organization registered as an infectious disease in La Jolla, California and active in the NPI registry since August 2006. The organization lists Wun-ling Chang, President, as its authorized official.

NPPES Registry Identity

NPI1447267141
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameWUN-LING CHANG, M.D., INC.
Location Address9888 GENESEE AVELa Jolla, CA 92037-1205
Mailing Address3525 Del Mar Heights Rd # 453San Diego, CA 92130-2122 · (858) 202-1736 · Fax (858) 202-1796
Phone(858) 202-1736
Fax(858) 202-1796
Organization SubpartNo
Authorized OfficialWun-ling ChangPresident · (858) 202-1736
Enumeration DateAugust 2, 2006
Last NPPES UpdateApril 25, 2008
✔ NPI 1447267141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · G86459
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
9888 GENESEE AVE, La Jolla, CA 92037
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Other Identifiers 4

Medicare UPINE20748
Other00G864590CA · Blue Shield
Medicaid00G864590CA
Medicare PINW22080CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Wun-ling Chang, M.d., Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Wun-Ling Chang, M.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Wun Ling Chang, M.D.
Infectious Disease
NPI 1194734111
9888 GENESEE AVE
La Jolla, CA 92037
(858) 202-1736
✔ PECOS✔ Accepts Medicare0.1 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Wun-Ling Chang, M.D., Inc.'s NPI number?

The NPI number for Wun-Ling Chang, M.D., Inc. is 1447267141. It was assigned to this organization in the NPPES registry on August 2, 2006.

Where is Wun-Ling Chang, M.D., Inc. located?

Wun-Ling Chang, M.D., Inc. is located at 9888 Genesee Ave, La Jolla, CA 92037. The listed phone number is (858) 202-1736.

What is Wun-Ling Chang, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Wun-Ling Chang, M.D., Inc. enrolled in Medicare?

Yes. Wun-Ling Chang, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Wun-Ling Chang, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Infectious Disease) reassigns their Medicare billing to Wun-Ling Chang, M.D., Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Wun-Ling Chang, M.D., Inc. was last updated on April 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.