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MARK J. OSTROWSKI, PSY.D. LLC
NPI 1346649589
Psychologist - Clinical in Stamford, CT

Active since August 13, 2014
999 SUMMER ST, SUITE 200, STAMFORD, CT 06905(203) 967-4995(203) 357-9030 Get Directions Write a Review

NPPES record last updated: August 13, 2014. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mark J. Ostrowski, Psy.d. Llc NPPES

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

MARK J. OSTROWSKI, PSY.D. LLC (NPI 1346649589) is a healthcare organization registered as a clinical in Stamford, Connecticut and active in the NPI registry since August 2014. The organization lists Mark J. Ostrowski, Clinical Psychologist, as its authorized official.

NPPES Registry Identity

NPI1346649589
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameMARK J. OSTROWSKI, PSY.D. LLC
Location Address999 SUMMER ST, SUITE 200Stamford, CT 06905-5546
Mailing Address999 Summer St, Suite 200Stamford, CT 06905-5546 · (203) 967-4995 · Fax (203) 357-9030
Phone(203) 967-4995
Fax(203) 357-9030
Organization SubpartNo
Authorized OfficialMark J. OstrowskiClinical Psychologist · (203) 967-4995
Enumeration DateAugust 13, 2014
✔ NPI 1346649589 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 CT · 002433
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.

999 SUMMER ST, Stamford, CT 06905
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Other Identifiers 2

Medicaid008039686CT
Medicare PIN680001539CT

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. THOMAS WILLIAM MANDERS DDS
Dentist (Endodontics)
999 SUMMER ST, SUITE 301
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 325-3636
SHIMRAT R NOTIK MD
Dermatology
999 SUMMER ST, STE 305
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 428-4440
DR. IRENE WONG DDS
Dentist (Endodontics)
999 SUMMER ST, SUITE 301
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 325-3636
DR. ANNA KARIDAS DDS
Dentist (General Practice)
999 SUMMER ST, SUITE 203
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 961-8140
PATRICK J CAHILL D.O.
Obstetrics & Gynecology
999 SUMMER ST, SUITE 401
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 353-9099
JANET J. HARTERY M.S., P.T.
Specialist
999 SUMMER ST
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 359-8326
BRITTANY D FINCH
Specialist
999 SUMMER ST
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 359-8326
ANDREW S. LOVIG PT
Physical Therapist
999 SUMMER ST, FIRST FLOOR
STAMFORD, CT 06905
Western Connecticut Planning Region (203) 359-8326

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 Mark J. Ostrowski, Psy.D. LLC's NPI number?

The NPI number for Mark J. Ostrowski, Psy.D. LLC is 1346649589. It was assigned to this organization in the NPPES registry on August 13, 2014.

Where is Mark J. Ostrowski, Psy.D. LLC located?

Mark J. Ostrowski, Psy.D. LLC is located at 999 Summer St Suite 200, Stamford, CT 06905. The listed phone number is (203) 967-4995.

What is Mark J. Ostrowski, Psy.D. LLC's specialty?

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

When was this NPI record last updated?

The NPPES record for Mark J. Ostrowski, Psy.D. LLC was last updated on August 13, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.