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DR. MARK TIMOTHY SWEENEY PH.D., LPC
NPI 1205167038
Counselor - Professional in Washington, DC

Active since January 18, 2010
1253 WALTER ST SE, WASHINGTON, DC 20003(202) 596-5951(866) 712-1080 Get Directions Write a Review

NPPES record last updated: January 18, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Mark Timothy Sweeney Ph.d., Lpc NPPES

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

DR. MARK TIMOTHY SWEENEY PH.D., LPC (NPI 1205167038) is an individual professional provider in Washington, District Of Columbia, licensed in District Of Columbia (PRC13878) and active in the NPI registry since January 2010.

NPPES Registry Identity

NPI1205167038
Entity TypeIndividualMale
Primary Taxonomy101YP2500X
Provider Legal NameDR. MARK TIMOTHY SWEENEYCredential: PH.D., LPC
Location Address1253 WALTER ST SEWashington, DC 20003-1449
Mailing Address1253 Walter St SeWashington, DC 20003-1449 · (202) 596-5951 · Fax (866) 712-1080
Phone(202) 596-5951
Fax(866) 712-1080
Sole ProprietorNo
Enumeration DateJanuary 18, 2010
✔ NPI 1205167038 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in DC · PRC13878
1253 WALTER ST SE, Washington, DC 20003
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Other Providers at the Same Location NPPES 7

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

CAPITOL REGION CHILDREN'S CENTER
Case Management
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (202) 596-5951
CRISTA L KOSTENKO ATR
Art Therapist
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (202) 596-5951
ODYSSEY HINES
Social Worker
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (202) 596-5951
ANDREW MITCHELL
Social Worker
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (202) 596-5951
CRYSTAL MARCUS M.A.
Counselor
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (202) 596-5951
BRITTANY PHIPPS MFT
Marriage & Family Therapist
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (954) 235-5110
KARIS CALLAHAN MSW, LICSW
Social Worker (Clinical)
1253 WALTER ST SE
WASHINGTON, DC 20003
District of Columbia (202) 903-6876

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 Sweeney's NPI number?

The NPI number for Mark Sweeney is 1205167038. It was assigned to this individual provider in the NPPES registry on January 18, 2010.

Where is Mark Sweeney located?

Mark Sweeney practices at 1253 Walter St SE, Washington, DC 20003. The listed phone number is (202) 596-5951.

What is Mark Sweeney's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

When was this NPI record last updated?

The NPPES record for Mark Sweeney was last updated on January 18, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.