Quick answers
- Which hospitals does Athar A. Shaikh work at?
- Medicare's official clinician data lists Athar A. Shaikh at 2 hospitals: Holy Cross Hospital and Tucson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Athar A. Shaikh see patients?
- Medicare's clinician data lists 1 practice location in Nogales, AZ. Call before your visit to confirm the address.
- What is Athar A. Shaikh's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Nuclear Medicine.
- Does Athar A. Shaikh accept Medicare assignment?
- Yes. Medicare's clinician data says Athar A. Shaikh 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 Athar A. Shaikh?
- (520) 287-5728, as listed in official Medicare / NPI Registry data.
- What is Athar A. Shaikh's NPI number?
- 1477531713. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Athar A. Shaikh works
Medicare's Facility Affiliation Data lists Athar A. Shaikh at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holy Cross HospitalNogales, AZ · Critical Access Hospital · CCN 031313
- Tucson Medical CenterTucson, AZ · Acute Care Hospital · CCN 030006
Practice locations
Addresses where Athar A. Shaikh is enrolled with Medicare (CMS data updated 2026-10-02).
- 480 N Morley AveNogales, AZ 85621 (520) 287‑5728
Group practices
Medicare enrollment lists Athar A. Shaikh as a member of this group (CMS data updated 2026-10-02).
- Pima Heart Physicians PC65 clinicians in the group
Specialties
- Internal Medicineprimary
- Nuclear Medicinealso
Other internal medicine doctors in Arizona
Clinicians with the same Medicare primary specialty in Arizona — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477531713 |
| 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