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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.

MARK C KRZYSIAK LSW
NPI 1790329357
Social Worker in Cleveland, OH

Active since November 06, 2019
4400 EUCLID AVE, CLEVELAND, OH 44103(216) 431-5800 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 14, 2026, Sep 9, 2024, Sep 3, 2024 and 2 more (5 updates tracked since 2019).

About Mark C Krzysiak Lsw NPPES

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

MARK C KRZYSIAK LSW (NPI 1790329357) is an individual social worker in Cleveland, Ohio, licensed in Ohio (S.2106393) and active in the NPI registry since November 2019. He maintains a secondary practice location in Shaker Heights.

NPPES Registry Identity

NPI1790329357
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameMARK C KRZYSIAKCredential: LSW
Location Address4400 EUCLID AVECleveland, OH 44103-3734
Mailing Address4400 Euclid AveCleveland, OH 44103-3734 · (216) 431-5800
Phone(216) 431-5800
Sole ProprietorYes
Enumeration DateNovember 6, 2019
Last NPPES UpdateJuly 14, 20265 updates tracked since enumeration
NPPES CertifiedJuly 14, 2026
✔ NPI 1790329357 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in OH · S.2106393
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
4400 EUCLID AVE, Cleveland, OH 44103
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Secondary Practice Location 1

Location 122001 Fairmount BlvdShaker Heights, OH 44118-4819 · Phone (216) 932-2800

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

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.

CATHERINE ELIZABETH HUFF LSW
Social Worker
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 314-2694
JOSHUA DURKALSKI SW
Social Worker
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 432-7200
LATOYKA PRIESTER
Case Manager/Care Coordinator
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 835-0913
BERRY J THOMPSON III
Case Manager/Care Coordinator
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 373-2819
LILAH MICHELLE COOPER
Counselor
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 651-2037
LORI SENDER LISW/S
Social Worker
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 432-7200
SHARON RENNE BURNS
Case Manager/Care Coordinator
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 432-7200
AARON MCCLENTON
Case Manager/Care Coordinator
4400 EUCLID AVE
CLEVELAND, OH 44103
Cuyahoga County (216) 431-5800

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 Krzysiak's NPI number?

The NPI number for Mark Krzysiak is 1790329357. It was assigned to this individual provider in the NPPES registry on November 6, 2019.

Where is Mark Krzysiak located?

Mark Krzysiak practices at 4400 Euclid Ave, Cleveland, OH 44103. The listed phone number is (216) 431-5800.

What is Mark Krzysiak's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

What insurance does Mark Krzysiak accept?

Health plans from CareSource list Mark Krzysiak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Krzysiak was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.