Quick answers
- Which hospitals does Nayyar Siddique work at?
- Medicare's official clinician data lists Nayyar Siddique at 5 hospitals: Benefis Hospitals Inc, Enloe Health, Mercy Medical Center Redding, Northern Montana Hospital and St Elizabeth Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nayyar Siddique see patients?
- Medicare's clinician data lists 3 practice locations, including Redding, CA, Chico, CA and Havre, MT. Call before your visit to confirm the address.
- What is Nayyar Siddique's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Nayyar Siddique accept Medicare assignment?
- Yes. Medicare's clinician data says Nayyar Siddique 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 Nayyar Siddique?
- (530) 225-7779, as listed in official Medicare / NPI Registry data.
- What is Nayyar Siddique's NPI number?
- 1497890610. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nayyar Siddique works
Medicare's Facility Affiliation Data lists Nayyar Siddique at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospital · CCN 270012
- Enloe HealthChico, CA · Acute Care Hospital · CCN 050039
- Mercy Medical Center ReddingRedding, CA · Acute Care Hospital · CCN 050280
- Northern Montana HospitalHavre, MT · Critical Access Hospital · CCN 271348
- St Elizabeth Community HospitalRed Bluff, CA · Acute Care Hospital · CCN 050042
Practice locations
Addresses where Nayyar Siddique is enrolled with Medicare (CMS data updated 2026-10-02).
- 2175 Rosaline AveRedding, CA 96001 (530) 225‑7779
- 265 Cohasset RdChico, CA 95926 (530) 332‑3808
- 40 13th St WHavre, MT 59501 (406) 262‑6000
Group practices
Medicare enrollment lists Nayyar Siddique as a member of these groups (CMS data updated 2026-10-02).
- Dignity Health86 clinicians in the group
- Northern Montana Hospital47 clinicians in the group
- Enloe Specialty Physicians Inc24 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497890610 |
| 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