William Dietrick, MD
NPI 1881712248 · Specialist · Pasadena, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Dietrick, MD is a Specialist provider in Pasadena, CA (NPI 1881712248).
Provider details
- NPI number
- 1881712248
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G13777 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-03-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Dietrick's NPI number?
- William Dietrick's National Provider Identifier (NPI) is 1881712248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Dietrick's specialty?
- William Dietrick is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is William Dietrick located?
- William Dietrick's practice location on file with NPPES is 800 Fairmount Ave, Pasadena, CA 91105-3150.
- What is William Dietrick's phone number?
- The practice phone number listed in the NPPES registry for William Dietrick is (626) 397-5126.
- Does William Dietrick accept Medicare?
- William Dietrick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Dietrick's NPI active?
- Yes — William Dietrick's NPI (1881712248) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.