James Ostendarp, LMHC
NPI 1538383575 · Counselor · Greenfield, MA
James Ostendarp, LMHC is a Counselor provider in Greenfield, MA (NPI 1538383575).
Provider details
- NPI number
- 1538383575
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC
- Sex
- Male
- Sole proprietor
- No
- License
- 774 (MA)
Specialties & taxonomies
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
- 2007-04-12
- Last updated
- 2008-01-15
Frequently asked questions
- What is James Ostendarp's NPI number?
- James Ostendarp's National Provider Identifier (NPI) is 1538383575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Ostendarp's specialty?
- James Ostendarp is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is James Ostendarp located?
- James Ostendarp's practice location on file with NPPES is 48 Sanderson St, Greenfield, MA 01301-2715.
- What is James Ostendarp's phone number?
- The practice phone number listed in the NPPES registry for James Ostendarp is (413) 773-4449.
- Is James Ostendarp's NPI active?
- Yes — James Ostendarp's NPI (1538383575) is active in the NPPES registry as of the last update on 2008-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.