Richard Williams, MD
NPI 1952315350 · Diagnostic Radiology Physician · Santa Cruz, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Williams, MD is a Diagnostic Radiology Physician provider in Santa Cruz, CA (NPI 1952315350).
Provider details
- NPI number
- 1952315350
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G43122 (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
19 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
801 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 | 106 | $9 |
| Screening 3d Breast Mammography77063 | 83 | $31 |
| Screening Mammography77067 | 83 | $39 |
| X-Ray of Chest, 2 Views71046 | 72 | $11 |
| Ct Scan Head Or Brain Without Contrast70450 | 57 | $42 |
| X-Ray of Chest, 2 Views71046 | 53 | $31 |
| Ct Scan of Abdomen and Pelvis With Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2008-07-02
Frequently asked questions
- What is Richard Williams's NPI number?
- Richard Williams's National Provider Identifier (NPI) is 1952315350, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Williams's specialty?
- Richard Williams is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Williams located?
- Richard Williams's practice location on file with NPPES is 1661 Soquel Drive, Santa Cruz, CA 95065-1709.
- What is Richard Williams's phone number?
- The practice phone number listed in the NPPES registry for Richard Williams is (831) 476-7711.
- Does Richard Williams accept Medicare?
- Richard Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Williams's NPI active?
- Yes — Richard Williams's NPI (1952315350) is active in the NPPES registry as of the last update on 2008-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.