Kevin Day, MD
NPI 1699030577 · Radiation Oncology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kevin Day, MD is a Radiation Oncology Physician provider in Stanford, CA (NPI 1699030577).
Provider details
- NPI number
- 1699030577
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A145607 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,509 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 781 | $8 |
| X-Ray of Chest, 2 Views71046 | 391 | $10 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 274 | $84 |
| Ct Scan Head Or Brain Without Contrast70450 | 184 | $39 |
| Ct Scan of Chest Without Contrast71250 | 117 | $140 |
| Ct Scan of Chest With Contrast71260 | 110 | $52 |
| Ct Scan of Chest Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-07
- Last updated
- 2018-06-07
Frequently asked questions
- What is Kevin Day's NPI number?
- Kevin Day's National Provider Identifier (NPI) is 1699030577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kevin Day's specialty?
- Kevin Day is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Kevin Day located?
- Kevin Day's practice location on file with NPPES is 300 Pasteur Dr Rm S092, Stanford, CA 94305-2200.
- What is Kevin Day's phone number?
- The practice phone number listed in the NPPES registry for Kevin Day is (650) 723-4527.
- Does Kevin Day accept Medicare?
- Kevin Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kevin Day's NPI active?
- Yes — Kevin Day's NPI (1699030577) is active in the NPPES registry as of the last update on 2018-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.