Nathan Diegelman, PH.D.
NPI 1396897856 · Counseling Psychologist · Orchard Park, NY
Nathan Diegelman, PH.D. is a Counseling Psychologist provider in Orchard Park, NY (NPI 1396897856).
Provider details
- NPI number
- 1396897856
- Entity type
- Individual
- Primary specialty
- Counseling PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
83% 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
- 2007-01-17
- Last updated
- 2026-03-26
- Certified
- 2026-03-26
Frequently asked questions
- What is Nathan Diegelman's NPI number?
- Nathan Diegelman's National Provider Identifier (NPI) is 1396897856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Diegelman's specialty?
- Nathan Diegelman is listed in the NPPES registry with a primary specialty of Counseling Psychologist (Behavioral Health & Social Service Providers).
- Where is Nathan Diegelman located?
- Nathan Diegelman's practice location on file with NPPES is 3780 N Buffalo St Ste 6, Orchard Park, NY 14127-1855.
- What is Nathan Diegelman's phone number?
- The practice phone number listed in the NPPES registry for Nathan Diegelman is (716) 202-0637.
- Is Nathan Diegelman's NPI active?
- Yes — Nathan Diegelman's NPI (1396897856) is active in the NPPES registry as of the last update on 2026-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.