Wun-Ling Chang, M.D., Inc.
NPI 1447267141 · Infectious Disease Physician · La Jolla, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wun-Ling Chang, M.D., Inc. is a Infectious Disease Physician organization in La Jolla, CA (NPI 1447267141).
Provider details
- NPI number
- 1447267141
- Entity type
- Organization
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Wun-Ling Chang, President(858) 202-1736
- License
- G86459 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2006-08-02
- Last updated
- 2008-04-25
Frequently asked questions
- What is Wun-Ling Chang, M.D., Inc.'s NPI number?
- Wun-Ling Chang, M.D., Inc.'s National Provider Identifier (NPI) is 1447267141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Wun-Ling Chang, M.D., Inc.?
- Wun-Ling Chang, M.D., Inc. is classified in the NPPES registry as Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Wun-Ling Chang, M.D., Inc. located?
- Wun-Ling Chang, M.D., Inc.'s practice location on file with NPPES is 9888 Genesee Ave, La Jolla, CA 92037-1205.
- What is Wun-Ling Chang, M.D., Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Wun-Ling Chang, M.D., Inc. is (858) 202-1736.
- Does Wun-Ling Chang, M.D., Inc. accept Medicare?
- Wun-Ling Chang, M.D., Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Wun-Ling Chang, M.D., Inc.?
- The authorized official listed on Wun-Ling Chang, M.D., Inc.'s NPPES record is Wun-Ling Chang, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Wun-Ling Chang, M.D., Inc.'s NPI active?
- Yes — Wun-Ling Chang, M.D., Inc.'s NPI (1447267141) is active in the NPPES registry as of the last update on 2008-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.