Allan Chang, MD
NPI 1134656267 · Obstetrics & Gynecology Physician · Mesquite, TX
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allan Chang, MD is a Obstetrics & Gynecology Physician provider in Mesquite, TX (NPI 1134656267).
Provider details
- NPI number
- 1134656267
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- S9473 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$299 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 4206 Dalrock Rd Ste aRowlett, TX 75088-5546Phone: (469) 862-3756Fax: (469) 862-3766
- 105 E High St Ste aTerrell, TX 75160-2660Phone: (972) 210-7273Fax: (469) 862-3766
Registry dates
- Enumerated
- 2017-05-19
- Last updated
- 2022-10-24
- Certified
- 2022-10-24
Frequently asked questions
- What is Allan Chang's NPI number?
- Allan Chang's National Provider Identifier (NPI) is 1134656267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allan Chang's specialty?
- Allan Chang is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Allan Chang located?
- Allan Chang's practice location on file with NPPES is 1010 N Belt Line Rd Ste 101, Mesquite, TX 75149-1770.
- What is Allan Chang's phone number?
- The practice phone number listed in the NPPES registry for Allan Chang is (469) 862-3756.
- Does Allan Chang accept Medicare?
- Allan Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allan Chang's NPI active?
- Yes — Allan Chang's NPI (1134656267) is active in the NPPES registry as of the last update on 2022-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.