Gregory Anderson, MD
NPI 1841467099 · Diagnostic Radiology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Anderson, MD is a Diagnostic Radiology Physician provider in San Diego, CA (NPI 1841467099).
Provider details
- NPI number
- 1841467099
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2008-00336 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
2,952 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 405 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 214 | $40 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 148 | $212 |
| Mri Scan of Leg Joint Without Contrast73721 | 129 | $219 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 107 | $88 |
| Mri Scan of Arm Joint Without Contrast73221 | 94 | $227 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (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
- 2008-05-15
- Last updated
- 2021-04-12
- Certified
- 2021-04-12
Frequently asked questions
- What is Gregory Anderson's NPI number?
- Gregory Anderson's National Provider Identifier (NPI) is 1841467099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Anderson's specialty?
- Gregory Anderson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Anderson located?
- Gregory Anderson's practice location on file with NPPES is 150 W Washington St, San Diego, CA 92103-2005.
- What is Gregory Anderson's phone number?
- The practice phone number listed in the NPPES registry for Gregory Anderson is (919) 684-8111.
- Does Gregory Anderson accept Medicare?
- Gregory Anderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Anderson's NPI active?
- Yes — Gregory Anderson's NPI (1841467099) is active in the NPPES registry as of the last update on 2021-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.