Alexander Kleinberg, MFTI
NPI 1548627078 · Marriage & Family Therapist · San Francisco, CA
Enrolled with Medicare as Practitioner - Marriage and Family Therapist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Kleinberg, MFTI is a Marriage & Family Therapist provider in San Francisco, CA (NPI 1548627078).
Provider details
- NPI number
- 1548627078
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFTI
- Sex
- Male
- Sole proprietor
- Yes
- License
- IMF90312 (CA)
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
10 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
- 2016-01-28
- Last updated
- 2022-02-11
- Certified
- 2020-12-17
Frequently asked questions
- What is Alexander Kleinberg's NPI number?
- Alexander Kleinberg's National Provider Identifier (NPI) is 1548627078, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Kleinberg's specialty?
- Alexander Kleinberg is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Alexander Kleinberg located?
- Alexander Kleinberg's practice location on file with NPPES is 999 Sutter St, San Francisco, CA 94109-6023.
- What is Alexander Kleinberg's phone number?
- The practice phone number listed in the NPPES registry for Alexander Kleinberg is (415) 323-3630.
- Does Alexander Kleinberg accept Medicare?
- Alexander Kleinberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Kleinberg's NPI active?
- Yes — Alexander Kleinberg's NPI (1548627078) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.