Stanley Sizeler, M.D.
NPI 1023349719 · Diagnostic Radiology Physician · Pleasant Hill, CA
Stanley Sizeler, M.D. is a Diagnostic Radiology Physician provider in Pleasant Hill, CA (NPI 1023349719).
Provider details
- NPI number
- 1023349719
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- CFE23579 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-01-20
- Last updated
- 2010-01-20
Frequently asked questions
- What is Stanley Sizeler's NPI number?
- Stanley Sizeler's National Provider Identifier (NPI) is 1023349719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Sizeler's specialty?
- Stanley Sizeler is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Sizeler located?
- Stanley Sizeler's practice location on file with NPPES is 28 Shetland Ln, Pleasant Hill, CA 94523-1615.
- What is Stanley Sizeler's phone number?
- The practice phone number listed in the NPPES registry for Stanley Sizeler is (925) 372-6422.
- Is Stanley Sizeler's NPI active?
- Yes — Stanley Sizeler's NPI (1023349719) is active in the NPPES registry as of the last update on 2010-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.