Quick answers
- Which hospitals does Cassandra Ballantyne work at?
- Medicare's official clinician data lists Cassandra Ballantyne at 2 hospitals: St Joseph's Hospital and Tucson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Cassandra Ballantyne see patients?
- Medicare's clinician data lists 1 practice location in Tucson, AZ. Call before your visit to confirm the address.
- What is Cassandra Ballantyne's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Cassandra Ballantyne accept Medicare assignment?
- Yes. Medicare's clinician data says Cassandra Ballantyne 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 Cassandra Ballantyne offer telehealth?
- Medicare's clinician data says Cassandra Ballantyne offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Cassandra Ballantyne?
- (702) 480-2550, as listed in official Medicare / NPI Registry data.
- What is Cassandra Ballantyne's NPI number?
- 1851973192. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cassandra Ballantyne works
Medicare's Facility Affiliation Data lists Cassandra Ballantyne at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Joseph's HospitalTucson, AZ · Acute Care Hospital · CCN 030011
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · CCN 030006
Practice locations
Addresses where Cassandra Ballantyne is enrolled with Medicare (CMS data updated 2026-10-02).
- 4730 E Grant RdTucson, AZ 85712 (702) 480‑2550
Group practices
Medicare enrollment lists Cassandra Ballantyne as a member of this group (CMS data updated 2026-10-02).
- Greater Phoenix Collaborative Care PC107 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Tucson
Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851973192 |
| 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