Douglas Chang, M.D.
NPI 1093914822 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Chang, M.D. is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1093914822).
Provider details
- NPI number
- 1093914822
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 233253-1 (NY)
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
18 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
- 2007-07-12
- Last updated
- 2026-05-20
- Certified
- 2026-05-20
Frequently asked questions
- What is Douglas Chang's NPI number?
- Douglas Chang's National Provider Identifier (NPI) is 1093914822, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Chang's specialty?
- Douglas Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Chang located?
- Douglas Chang's practice location on file with NPPES is 4212 N 16th St, Phoenix, AZ 85016-5319.
- What is Douglas Chang's phone number?
- The practice phone number listed in the NPPES registry for Douglas Chang is (602) 263-1200.
- Does Douglas Chang accept Medicare?
- Douglas Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Chang's NPI active?
- Yes — Douglas Chang's NPI (1093914822) is active in the NPPES registry as of the last update on 2026-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.