Quick answers
- Which hospitals does Lisa M. Sumner work at?
- Medicare's official clinician data lists Lisa M. Sumner at 5 hospitals: Hopi Health Care Center, La Paz Regional Hospital, Parker Indian Health Center, Phoenix Indian Medical Center and Whiteriver PHS Indian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lisa M. Sumner see patients?
- Medicare's clinician data lists 6 practice locations, including Parker, AZ, Whiteriver, AZ and Polacca, AZ. Call before your visit to confirm the address.
- What is Lisa M. Sumner's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Rheumatology.
- Does Lisa M. Sumner accept Medicare assignment?
- Yes. Medicare's clinician data says Lisa M. Sumner 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.
- Does Lisa M. Sumner offer telehealth?
- Medicare's clinician data says Lisa M. Sumner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Lisa M. Sumner?
- (928) 669-2137, as listed in official Medicare / NPI Registry data.
- What is Lisa M. Sumner's NPI number?
- 1962512012. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lisa M. Sumner works
Medicare's Facility Affiliation Data lists Lisa M. Sumner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hopi Health Care CenterPolacca, AZ · Critical Access Hospital · CCN 031305
- La Paz Regional HospitalParker, AZ · Critical Access Hospital · CCN 031317
- Parker Indian Health CenterParker, AZ · Critical Access Hospital · CCN 031307
- Phoenix Indian Medical CenterPhoenix, AZ · Acute Care Hospital · CCN 030078
- Whiteriver PHS Indian HospitalWhiteriver, AZ · Acute Care Hospital · CCN 030113
Practice locations
Addresses where Lisa M. Sumner is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 12033 Agency RdParker, AZ 85344 (928) 669‑2137
- 200 W Hospital DrWhiteriver, AZ 85941
- 264 HwyPolacca, AZ 86042 (928) 737‑6000
- 4212 N 16th StPhoenix, AZ 85016 (602) 263‑1200
- 515 Shoshone CirElko, NV 89801 (775) 738‑2252
Group practices
Medicare enrollment lists Lisa M. Sumner as a member of these groups (CMS data updated 2026-10-02).
- Dhew Ind Hlth SV Hlth SVS and MNTL Hlth Adm227 clinicians in the group
- DHHS IHS Phoenix Area71 clinicians in the group
- DHHS IHS Phoenix Area59 clinicians in the group
- DHHS IHS Phoenix Area27 clinicians in the group
- DHHS IHS Phoenix Area9 clinicians in the group
Specialties
- Internal Medicineprimary
- Rheumatologyalso
Other internal medicine doctors in Parker
Clinicians with the same Medicare primary specialty in Parker, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1962512012 |
| 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