William Warden, MD
NPI 1568561561 · Pediatrics Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Warden, MD is a Pediatrics Physician provider in Roseville, CA (NPI 1568561561).
Provider details
- NPI number
- 1568561561
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G44691 (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
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
- 2006-09-22
- Last updated
- 2015-05-08
Frequently asked questions
- What is William Warden's NPI number?
- William Warden's National Provider Identifier (NPI) is 1568561561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Warden's specialty?
- William Warden is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is William Warden located?
- William Warden's practice location on file with NPPES is 3100 Douglas Blvd, Roseville, CA 95661-3866.
- What is William Warden's phone number?
- The practice phone number listed in the NPPES registry for William Warden is (916) 774-8500.
- Does William Warden accept Medicare?
- William Warden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Warden's NPI active?
- Yes — William Warden's NPI (1568561561) is active in the NPPES registry as of the last update on 2015-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.