Gregg Vonfempe, LCSW
NPI 1366569394 · Clinical Social Worker · Pasadena, CA
Gregg Vonfempe, LCSW is a Clinical Social Worker provider in Pasadena, CA (NPI 1366569394).
Provider details
- NPI number
- 1366569394
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- LCS22852 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Case Manager/Care Coordinator171M00000X
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
- 2007-03-23
- Last updated
- 2014-07-24
Frequently asked questions
- What is Gregg Vonfempe's NPI number?
- Gregg Vonfempe's National Provider Identifier (NPI) is 1366569394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg Vonfempe's specialty?
- Gregg Vonfempe is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Gregg Vonfempe located?
- Gregg Vonfempe's practice location on file with NPPES is 825 E Orange Grove Blvd, Pasadena, CA 91104-1160.
- What is Gregg Vonfempe's phone number?
- The practice phone number listed in the NPPES registry for Gregg Vonfempe is (626) 240-4550.
- Is Gregg Vonfempe's NPI active?
- Yes — Gregg Vonfempe's NPI (1366569394) is active in the NPPES registry as of the last update on 2014-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.