IndividualActive
David Klein, LCSW
NPI 1639123375 · Clinical Social Worker · Phoenix, AZ
David Klein, LCSW is a Clinical Social Worker provider in Phoenix, AZ (NPI 1639123375).
Provider details
- NPI number
- 1639123375
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- LCSW-12907 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(95/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
650 E Indian School Rd
Phoenix, AZ 85012
Phone: (602) 877-5551
Fax: (602) 200-2325
Street-level locationGet directions
Mailing address
1400 E Southern Ave Ste 735
Tempe, AZ 85282-5699
Additional practice locations (1)
- 2120 S Mcclintock Dr Ste 105Tempe, AZ 85282-2692Phone: (480) 804-0326
Registry dates
- Enumerated
- 2006-05-19
- Last updated
- 2018-09-05
Frequently asked questions
- What is David Klein's NPI number?
- David Klein's National Provider Identifier (NPI) is 1639123375, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Klein's specialty?
- David Klein is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Klein located?
- David Klein's practice location on file with NPPES is 650 E Indian School Rd, Phoenix, AZ 85012.
- What is David Klein's phone number?
- The practice phone number listed in the NPPES registry for David Klein is (602) 877-5551.
- Is David Klein's NPI active?
- Yes — David Klein's NPI (1639123375) is active in the NPPES registry as of the last update on 2018-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.