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JOHN R. KLINDIENST PH. D. CLINICAL PSYCHOLOGIST P.C.
NPI 1821242876
Psychologist - Clinical in Riverhead, NY

Active since November 04, 2008
223 ROANOKE AVENUE, RIVERHEAD, NY 11901(631) 727-1563(361) 369-9423 Get Directions Write a Review

NPPES record last updated: November 4, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About John R. Klindienst Ph. D. Clinical Psychologist P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN R. KLINDIENST PH. D. CLINICAL PSYCHOLOGIST P.C. (NPI 1821242876) is a healthcare organization registered as a clinical in Riverhead, New York and active in the NPI registry since November 2008. The organization lists John R Klindienst, President, as its authorized official.

NPPES Registry Identity

NPI1821242876
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameJOHN R. KLINDIENST PH. D. CLINICAL PSYCHOLOGIST P.C.
Location Address223 ROANOKE AVENUERiverhead, NY 11901
Mailing Address223 Roanoke AveRiverhead, NY 11901-2778 · (631) 727-1563 · Fax (631) 369-9423
Phone(631) 727-1563
Fax(361) 369-9423
Organization SubpartNo
Authorized OfficialJohn R KlindienstPresident · (631) 727-1563
Enumeration DateNovember 4, 2008
✔ NPI 1821242876 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in NY · 007012
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
223 ROANOKE AVENUE, Riverhead, NY 11901
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John R. Klindienst Ph. D. Clinical Psychologist P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to John R. Klindienst Ph. D. Clinical Psychologist P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

John Klindienst, PH. D
Clinical Psychologist
NPI 1952466682
223 ROANOKE AVE
Riverhead, NY 11901
(631) 727-1563
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John R. Klindienst Ph. D. Clinical Psychologist P.C.'s NPI number?

The NPI number for John R. Klindienst Ph. D. Clinical Psychologist P.C. is 1821242876. It was assigned to this organization in the NPPES registry on November 4, 2008.

Where is John R. Klindienst Ph. D. Clinical Psychologist P.C. located?

John R. Klindienst Ph. D. Clinical Psychologist P.C. is located at 223 Roanoke Avenue, Riverhead, NY 11901. The listed phone number is (631) 727-1563.

What is John R. Klindienst Ph. D. Clinical Psychologist P.C.'s specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is John R. Klindienst Ph. D. Clinical Psychologist P.C. enrolled in Medicare?

Yes. John R. Klindienst Ph. D. Clinical Psychologist P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through John R. Klindienst Ph. D. Clinical Psychologist P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to John R. Klindienst Ph. D. Clinical Psychologist P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for John R. Klindienst Ph. D. Clinical Psychologist P.C. was last updated on November 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.