Quick answers
- Which hospitals does Gregory D. Northrop work at?
- Medicare's official clinician data lists Gregory D. Northrop at 2 hospitals: Glendale Adventist Medical Center and Huntington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory D. Northrop see patients?
- Medicare's clinician data lists 2 practice locations, including Pasadena, CA and Arcadia, CA. Call before your visit to confirm the address.
- What is Gregory D. Northrop's specialty?
- Medicare lists Sports Medicine as the primary specialty, and also Orthopedic Surgery.
- Does Gregory D. Northrop accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory D. Northrop 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 Gregory D. Northrop?
- (626) 797-2002, as listed in official Medicare / NPI Registry data.
- What is Gregory D. Northrop's NPI number?
- 1962404582. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory D. Northrop works
Medicare's Facility Affiliation Data lists Gregory D. Northrop at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Glendale Adventist Medical CenterGlendale, CA · Acute Care Hospital · CCN 050239
- Huntington HospitalPasadena, CA · Acute Care Hospital · CCN 050438
Practice locations
Addresses where Gregory D. Northrop is enrolled with Medicare (CMS data updated 2026-10-02).
- 2627 E Washington BlvdPasadena, CA 91107 (626) 797‑2002
- 289 W Huntington Dr, Suite 304Arcadia, CA 91007 (626) 979‑2002
Group practices
Medicare enrollment lists Gregory D. Northrop as a member of this group (CMS data updated 2026-10-02).
- Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
Specialties
- Sports Medicineprimary
- Orthopedic Surgeryalso
Other sports medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962404582 |
| 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