Quick answers
- Which hospitals does Maria Chang work at?
- Medicare's official clinician data lists Maria Chang at 4 hospitals: INTEGRIS Baptist Medical Center, Inc, INTEGRIS Canadian Valley Hospital, INTEGRIS Southwest Medical Center and Memorial Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maria Chang see patients?
- Medicare's clinician data lists 3 practice locations, including Oklahoma City, OK and Lawton, OK. Call before your visit to confirm the address.
- What is Maria Chang's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Maria Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Maria Chang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Maria Chang?
- (405) 702-1300, as listed in official Medicare / NPI Registry data.
- What is Maria Chang's NPI number?
- 1730281932. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maria Chang works
Medicare's Facility Affiliation Data lists Maria Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- INTEGRIS Baptist Medical Center, IncOklahoma City, OK · Acute Care Hospital · CCN 370028
- INTEGRIS Canadian Valley HospitalYukon, OK · Acute Care Hospital · CCN 370211
- INTEGRIS Southwest Medical CenterOklahoma City, OK · Acute Care Hospital · CCN 370106
- Memorial HealthLawton, OK · Acute Care Hospital · CCN 370056
Practice locations
Addresses where Maria Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 10029 N Oklahoma Ave, Suite 200Oklahoma City, OK 73114 (405) 702‑1300
- 110 NW 31st St, Fl 3Lawton, OK 73505 (580) 510‑7042
- 4201 S Western AveOklahoma City, OK 73109 (405) 702‑1300
Group practices
Medicare enrollment lists Maria Chang as a member of these groups (CMS data updated 2026-10-02).
- Comanche County Healthcare Corporation130 clinicians in the group
- Digestive Disease Specialists Inc18 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730281932 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians