Michael Firstein-Rudder, LMSW
NPI 1891595138 · Clinical Social Worker · New York, NY
Michael Firstein-Rudder, LMSW is a Clinical Social Worker provider in New York, NY (NPI 1891595138).
Provider details
- NPI number
- 1891595138
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- No
- License
- 123942 (NY)
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
1 yr 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
- 2025-03-17
- Last updated
- 2025-03-25
- Certified
- 2025-03-25
Frequently asked questions
- What is Michael Firstein-Rudder's NPI number?
- Michael Firstein-Rudder's National Provider Identifier (NPI) is 1891595138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Firstein-Rudder's specialty?
- Michael Firstein-Rudder is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Michael Firstein-Rudder located?
- Michael Firstein-Rudder's practice location on file with NPPES is 1619 3rd Ave Ste 202, New York, NY 10128-3459.
- What is Michael Firstein-Rudder's phone number?
- The practice phone number listed in the NPPES registry for Michael Firstein-Rudder is (646) 450-9690.
- Is Michael Firstein-Rudder's NPI active?
- Yes — Michael Firstein-Rudder's NPI (1891595138) is active in the NPPES registry as of the last update on 2025-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.