Quick answers
- Which hospitals does Daniel A. Graybill work at?
- Medicare's official clinician data lists Daniel A. Graybill at 2 hospitals: Oro Valley Hospital and Tucson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel A. Graybill see patients?
- Medicare's clinician data lists 4 practice locations, including Tucson, AZ. Call before your visit to confirm the address.
- What is Daniel A. Graybill's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Daniel A. Graybill accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel A. Graybill 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 Daniel A. Graybill offer telehealth?
- Medicare's clinician data says Daniel A. Graybill offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Daniel A. Graybill?
- (520) 547-5725, as listed in official Medicare / NPI Registry data.
- What is Daniel A. Graybill's NPI number?
- 1639137359. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel A. Graybill works
Medicare's Facility Affiliation Data lists Daniel A. Graybill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Oro Valley HospitalOro Valley, AZ · Acute Care Hospital · CCN 030114
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · CCN 030006
Practice locations
Addresses where Daniel A. Graybill is enrolled with Medicare (CMS data updated 2026-10-02).
- 2055 W Hospital DrTucson, AZ 85704 (520) 547‑5725
- 3190 N Swan RdTucson, AZ 85712 (570) 547‑9700
- 5055 E Broadway Blvd, Suite A100Tucson, AZ 85711 (520) 795‑4783
- 5515 E 5th StTucson, AZ 85711 (520) 298‑1138
Group practices
Medicare enrollment lists Daniel A. Graybill as a member of this group (CMS data updated 2026-10-02).
- Arizona Community Physicians PC161 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 | Tufts University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1639137359 |
| 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