Quick answers
- Which hospitals does Andrew Y. Chang work at?
- Medicare's official clinician data lists Andrew Y. Chang at 4 hospitals: Lawton Indian Hospital, SSM Health St Anthony Hospital - Midwest, SSM Health St Anthony Hospital - Oklahoma City and SSM Health St Anthony Hospital - Shawnee. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew Y. Chang see patients?
- Medicare's clinician data lists 3 practice locations, including Oklahoma City, OK and El Reno, OK. Call before your visit to confirm the address.
- What is Andrew Y. Chang's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Family Practice.
- Does Andrew Y. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew Y. 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 Andrew Y. Chang?
- (405) 272-4978, as listed in official Medicare / NPI Registry data.
- What is Andrew Y. Chang's NPI number?
- 1417690041. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew Y. Chang works
Medicare's Facility Affiliation Data lists Andrew Y. Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lawton Indian HospitalLawton, OK · Acute Care Hospital · CCN 370170
- SSM Health St Anthony Hospital - MidwestMidwest City, OK · Acute Care Hospital · CCN 370094
- SSM Health St Anthony Hospital - Oklahoma CityOklahoma City, OK · Acute Care Hospital · CCN 370037
- SSM Health St Anthony Hospital - ShawneeShawnee, OK · Acute Care Hospital · CCN 370149
Practice locations
Addresses where Andrew Y. Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 N Lee AveOklahoma City, OK 73102 (405) 272‑4978
- 1111 N Lee Ave, Suite 305Oklahoma City, OK 73103 (405) 272‑4978
- 1801 Parkview DrEl Reno, OK 73036 (405) 234‑5600
Group practices
Medicare enrollment lists Andrew Y. Chang as a member of these groups (CMS data updated 2026-10-02).
- Metro Physicians LLC56 clinicians in the group
- El Reno Indian Health Center48 clinicians in the group
Specialties
- Hospitalistprimary
- Family Practicealso
Other hospitalists in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417690041 |
| 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