Shannon Gaffney, DO
NPI 1548459340 · Diagnostic Radiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shannon Gaffney, DO is a Diagnostic Radiology Physician provider in Stanford, CA (NPI 1548459340).
Provider details
- NPI number
- 1548459340
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 20A14319 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Diagnostic Radiology Physician2085R0202X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
4,461 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Screening Mammography77067 | 1,348 | $40 |
| Screening 3d Breast Mammography77063 | 1,340 | $31 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 353 | $31 |
| X-Ray of Chest, 1 View71045 | 244 | $9 |
| Diagnostic Mammography of 1 Breast77065 | 235 | $43 |
| Limited Ultrasound Scan of 1 Breast76642 | 231 | $37 |
Practice location
Mailing address
Additional practice locations (3)
- 3161 L StSacramento, CA 95816-5234Phone: (916) 887-7862Fax: (916) 736-5533
- 101 Bodin CirTravis Afb, CA 94535-1809Phone: (707) 423-7273
- 55 Fruit StBoston, MA 02114-2621Phone: (617) 724-4260
Registry dates
- Enumerated
- 2007-10-17
- Last updated
- 2024-04-09
- Certified
- 2024-04-09
Frequently asked questions
- What is Shannon Gaffney's NPI number?
- Shannon Gaffney's National Provider Identifier (NPI) is 1548459340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shannon Gaffney's specialty?
- Shannon Gaffney is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Shannon Gaffney located?
- Shannon Gaffney's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Shannon Gaffney's phone number?
- The practice phone number listed in the NPPES registry for Shannon Gaffney is (650) 723-4000.
- Does Shannon Gaffney accept Medicare?
- Shannon Gaffney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shannon Gaffney's NPI active?
- Yes — Shannon Gaffney's NPI (1548459340) is active in the NPPES registry as of the last update on 2024-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.