Joshua Spierer
NPI 1538712658 · Clinical Social Worker · Milwaukee, WI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Spierer is a Clinical Social Worker provider in Milwaukee, WI (NPI 1538712658).
Provider details
- NPI number
- 1538712658
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2019-07-17
- Last updated
- 2019-07-17
Frequently asked questions
- What is Joshua Spierer's NPI number?
- Joshua Spierer's National Provider Identifier (NPI) is 1538712658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Spierer's specialty?
- Joshua Spierer is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Joshua Spierer located?
- Joshua Spierer's practice location on file with NPPES is 3522 W Lisbon Ave, Milwaukee, WI 53208-1953.
- What is Joshua Spierer's phone number?
- The practice phone number listed in the NPPES registry for Joshua Spierer is (414) 935-8000.
- Does Joshua Spierer accept Medicare?
- Joshua Spierer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Spierer's NPI active?
- Yes — Joshua Spierer's NPI (1538712658) is active in the NPPES registry as of the last update on 2019-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.