Gregory Northrop, MD
NPI 1962404582 · Sports Medicine (Orthopaedic Surgery) Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Sports Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Northrop, MD is a Sports Medicine (Orthopaedic Surgery) Physician provider in Pasadena, CA (NPI 1962404582).
Provider details
- NPI number
- 1962404582
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Orthopaedic Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A69737 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,561 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 392 | $91 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 312 | $75 |
| X-Ray of Knee, 1-2 Views73560 | 201 | $37 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 177 | $36 |
| X-Ray of Both Knees While Standing73565 | 126 | $43 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 116 | $113 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 183 | 92 |
| Celecoxib | 139 | 59 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 72 | 34 |
| Cefuroxime Axetilbrand: Cefuroxime | 67 | 58 |
| Tramadol Hcl | 63 | 41 |
| Ibuprofen | 59 | 32 |
| Omeprazole | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$258 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-12
- Last updated
- 2024-07-10
- Certified
- 2024-07-10
Frequently asked questions
- What is Gregory Northrop's NPI number?
- Gregory Northrop's National Provider Identifier (NPI) is 1962404582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Northrop's specialty?
- Gregory Northrop is listed in the NPPES registry with a primary specialty of Sports Medicine (Orthopaedic Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Northrop located?
- Gregory Northrop's practice location on file with NPPES is 2627 E Washington Blvd, Pasadena, CA 91107-1412.
- What is Gregory Northrop's phone number?
- The practice phone number listed in the NPPES registry for Gregory Northrop is (626) 797-2002.
- Does Gregory Northrop accept Medicare?
- Gregory Northrop is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Northrop's NPI active?
- Yes — Gregory Northrop's NPI (1962404582) is active in the NPPES registry as of the last update on 2024-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.