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

Q: 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.

Q: 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.

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: August 16, 2026.

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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 weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.