Marshall Greenstein, M.A.-LMHC, LMFT
NPI 1881733087 · Marriage & Family Therapist · Jamestown, NY
Marshall Greenstein, M.A.-LMHC, LMFT is a Marriage & Family Therapist provider in Jamestown, NY (NPI 1881733087).
Provider details
- NPI number
- 1881733087
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.A.-LMHC, LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 003149 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
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
- 2007-02-05
- Last updated
- 2011-05-31
Frequently asked questions
- What is Marshall Greenstein's NPI number?
- Marshall Greenstein's National Provider Identifier (NPI) is 1881733087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Greenstein's specialty?
- Marshall Greenstein is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marshall Greenstein located?
- Marshall Greenstein's practice location on file with NPPES is 501 W. Third St. Suite 2b, Jamestown, NY 14701.
- What is Marshall Greenstein's phone number?
- The practice phone number listed in the NPPES registry for Marshall Greenstein is (716) 484-7756.
- Is Marshall Greenstein's NPI active?
- Yes — Marshall Greenstein's NPI (1881733087) is active in the NPPES registry as of the last update on 2011-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.