Quick answers
- Which hospitals does Jonathan Ma work at?
- Medicare's official clinician data lists Jonathan Ma at 3 hospitals: Northwest Medical Center, Northwest Medical Center Sahuarita and Tucson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan Ma see patients?
- Medicare's clinician data lists 1 practice location in Sahuarita, AZ. Call before your visit to confirm the address.
- What is Jonathan Ma's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jonathan Ma accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan Ma 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 Jonathan Ma?
- (520) 352-1072, as listed in official Medicare / NPI Registry data.
- What is Jonathan Ma's NPI number?
- 1659016608. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan Ma works
Medicare's Facility Affiliation Data lists Jonathan Ma at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwest Medical CenterTucson, AZ · Acute Care Hospital · CCN 030085
- Northwest Medical Center SahuaritaSahuarita, AZ · Acute Care Hospital · CCN 030148
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · CCN 030006
Practice locations
Addresses where Jonathan Ma is enrolled with Medicare (CMS data updated 2026-10-02).
- 16260 S Rancho Sahuarita Blvd, Suite 220Sahuarita, AZ 85629 (520) 352‑1072
Group practices
Medicare enrollment lists Jonathan Ma as a member of this group (CMS data updated 2026-10-02).
- Northwest Allied Physicians LLC120 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Sahuarita
Clinicians with the same Medicare primary specialty in Sahuarita, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659016608 |
| 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