Hsiaw-Luen Chang, MD
NPI 1639253016 · Obstetrics & Gynecology Physician · Kingwood, TX
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hsiaw-Luen Chang, MD is a Obstetrics & Gynecology Physician provider in Kingwood, TX (NPI 1639253016).
Provider details
- NPI number
- 1639253016
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- J3294 (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
19 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.
$26 across 1 record (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)
- 25553 Highway 59Porter, TX 77365-6154Phone: (713) 442-2100
- 17198 St Lukes Way Ste 540The Woodlands, TX 77384-8016Phone: (713) 442-1900
Registry dates
- Enumerated
- 2006-10-24
- Last updated
- 2021-06-05
- Certified
- 2021-06-05
Frequently asked questions
- What is Hsiaw-Luen Chang's NPI number?
- Hsiaw-Luen Chang's National Provider Identifier (NPI) is 1639253016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hsiaw-Luen Chang's specialty?
- Hsiaw-Luen Chang is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Hsiaw-Luen Chang located?
- Hsiaw-Luen Chang's practice location on file with NPPES is 2755 W Lake Houston Pkwy, Kingwood, TX 77339-5223.
- What is Hsiaw-Luen Chang's phone number?
- The practice phone number listed in the NPPES registry for Hsiaw-Luen Chang is (713) 442-2100.
- Does Hsiaw-Luen Chang accept Medicare?
- Hsiaw-Luen Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hsiaw-Luen Chang's NPI active?
- Yes — Hsiaw-Luen Chang's NPI (1639253016) is active in the NPPES registry as of the last update on 2021-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.