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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STEPHEN MARK ULISSI
NPI 1730171901
Psychologist - Clinical in Bethesda, MD

Active since August 16, 2005
8901 WISCONSIN AVENUE, BETHESDA, MD 20889(301) 295-0576 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Stephen Mark Ulissi NPPES

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

STEPHEN MARK ULISSI (NPI 1730171901) is an individual clinical provider in Bethesda, Maryland, licensed in Maryland (1424) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1730171901
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameSTEPHEN MARK ULISSI
Location Address8901 WISCONSIN AVENUEBethesda, MD 20889-0001
Mailing Address5010 Elsmere PlBethesda, MD 20814-2826 · (301) 571-8252
Phone(301) 295-0576
Sole ProprietorNo
Enumeration DateAugust 16, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1730171901 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 MD · 1424
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.
8901 WISCONSIN AVENUE, Bethesda, MD 20889
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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.

TONYA M CONLEY MD
General Practice
8901 WISCONSIN AVENUE, WALTER REED NATIONAL MILITARY MEDICAL CENTER
BETHESDA, MD 20889
Montgomery County (301) 295-4600
ERIC SILVESTRE SUAREZ MD
Pathology (Anatomic Pathology)
8901 WISCONSIN AVENUE, PATHOLOGY DEPT., BUILDING 9
BETHESDA, MD 20889
Montgomery County (301) 319-8216
DR. BRADLEY A. SERWER M.D.
Internal Medicine (Interventional Cardiology)
8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Montgomery County (301) 295-0390
DR. STEVEN HENRY MCILWAIN DPM
Podiatrist (Foot & Ankle Surgery)
8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Montgomery County (301) 295-4295
DR. ROBERT MICHAEL TAFT
Dentist (Prosthodontics)
8901 WISCONSIN AVENUE, BLDG 1, RM 16125
BETHESDA, MD 20889
Montgomery County (301) 319-4509
DR. BRETT JAMES THEELER M.D.
Psychiatry & Neurology (Neurology)
8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Montgomery County (301) 295-4771
DR. DALLIN ROWLEY M.D.
Student in an Organized Health Care Education/Training Program
8901 WISCONSIN AVENUE, WALTER REED NATIONAL MILITARY MEDICAL CENTER
BETHESDA, MD 20889
Montgomery County (301) 295-4503
DR. ALICE JEAN SITHOLE PHARM.D.
Pharmacist
8901 WISCONSIN AVENUE, OUTPATIENT PHARMACY
BETHESDA, MD 20889
Montgomery County (301) 295-2121

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 Stephen Ulissi's NPI number?

The NPI number for Stephen Ulissi is 1730171901. It was assigned to this individual provider in the NPPES registry on August 16, 2005.

Where is Stephen Ulissi located?

Stephen Ulissi practices at 8901 Wisconsin Avenue, Bethesda, MD 20889. The listed phone number is (301) 295-0576.

What is Stephen Ulissi'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 Stephen Ulissi was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.