Christopher Chang, MD
NPI 1881632750 · Anesthesiology Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Chang, MD is a Anesthesiology Physician provider in Irvine, CA (NPI 1881632750).
Provider details
- NPI number
- 1881632750
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G75772 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
226 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 102 | $134 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 24 | $146 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 23 | $127 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 23 | $122 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 23 | $99 |
| Anesthesia for Retinal Surgery00145 | 20 | $200 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-03
- Last updated
- 2019-04-29
Frequently asked questions
- What is Christopher Chang's NPI number?
- Christopher Chang's National Provider Identifier (NPI) is 1881632750, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Chang's specialty?
- Christopher Chang is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Chang located?
- Christopher Chang's practice location on file with NPPES is 3500 Barranca Pkwy Ste 130, Irvine, CA 92606-8227.
- What is Christopher Chang's phone number?
- The practice phone number listed in the NPPES registry for Christopher Chang is (949) 552-6266.
- Does Christopher Chang accept Medicare?
- Christopher Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Chang's NPI active?
- Yes — Christopher Chang's NPI (1881632750) is active in the NPPES registry as of the last update on 2019-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.