Karen Butler, D.O.
NPI 1912133521 · General Practice Physician · Toluca Lake, CA
Karen Butler, D.O. is a General Practice Physician provider in Toluca Lake, CA (NPI 1912133521).
Provider details
- NPI number
- 1912133521
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A8739 (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
17 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
- 2009-06-09
- Last updated
- 2009-06-09
Frequently asked questions
- What is Karen Butler's NPI number?
- Karen Butler's National Provider Identifier (NPI) is 1912133521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Butler's specialty?
- Karen Butler is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Butler located?
- Karen Butler's practice location on file with NPPES is 10925 Blix St, Toluca Lake, CA 91602-3816.
- What is Karen Butler's phone number?
- The practice phone number listed in the NPPES registry for Karen Butler is (818) 623-0212.
- Is Karen Butler's NPI active?
- Yes — Karen Butler's NPI (1912133521) is active in the NPPES registry as of the last update on 2009-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.