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

DR. MARK WILLIAM COHEN PH.D.
NPI 1225018187
Psychologist - Clinical in Cincinnati, OH

Q: What is Mark Cohen's NPI number?

The NPI number for Mark Cohen is 1225018187. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Q: What is Mark Cohen's specialty?

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

Q: Is Mark Cohen enrolled in Medicare?

No. Mark Cohen has opted out of Medicare through January 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Mark Cohen 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 35 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.

Active since January 18, 2006Opted out of Medicare · through Jan 1, 2028

48 E HOLLISTER ST, CINCINNATI, OH 45219(513) 651-5605 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Mark William Cohen Ph.d. NPPES

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

DR. MARK WILLIAM COHEN PH.D. (NPI 1225018187) is an individual clinical provider in Cincinnati, Ohio, licensed in Ohio (3419) and active in the NPI registry since January 2006. He has opted out of Medicare through January 1, 2028.

NPPES Registry Identity

NPI1225018187

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. MARK WILLIAM COHENCredential: PH.D.

Location Address48 E HOLLISTER STCincinnati, OH 45219-1704

Mailing Address503 N Fort Thomas AveFort Thomas, KY 41075-1505 · (859) 781-4205

Phone(513) 651-5605

Sole ProprietorNo

Enumeration DateJanuary 18, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1225018187 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 OH · 3419

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.

48 E HOLLISTER ST, Cincinnati, OH 45219

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Mark William Cohen Ph.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2016 through January 1, 2028.

Opt-Out Effective DateJanuary 1, 2016

Opt-Out In Effect ThroughJanuary 1, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 5

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

DR. LAUREN J. FERIA PSY.D.

Psychologist (Clinical)

48 E HOLLISTER ST
CINCINNATI, OH 45219

Hamilton County (513) 484-0729

DR. DEBORAH ANDREWS PH.D.

Psychologist (Counseling)

48 E HOLLISTER ST
CINCINNATI, OH 45219

Hamilton County (513) 225-0155

DR. AMANDA LA GUARDIA PHD, LPCC-S, NCC

Counselor (Professional)

48 E HOLLISTER ST
CINCINNATI, OH 45219

Hamilton County (513) 556-8462

DR. SUE R. DYRENFORTH PH.D.

Psychologist

48 E HOLLISTER ST, SUITE 100
CINCINNATI, OH 45219

Hamilton County (513) 236-8045

MS. ANN L. FABER MSW, LISW

Social Worker (Clinical)

48 E HOLLISTER ST
CINCINNATI, OH 45219

Hamilton County (513) 582-7807

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 Cohen's NPI number?

The NPI number for Mark Cohen is 1225018187. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Where is Mark Cohen located?

Mark Cohen practices at 48 E Hollister St, Cincinnati, OH 45219. The listed phone number is (513) 651-5605.

What is Mark Cohen's specialty?

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

Is Mark Cohen enrolled in Medicare?

No. Mark Cohen has opted out of Medicare through January 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Mark Cohen 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 35 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.