MARK READER, PH.D., P.A.
NPI 1144425992
Psychologist - Clinical in Baltimore, MD

Q: What is Mark Reader, Ph.D., P.A.'s NPI number?

The NPI number for Mark Reader, Ph.D., P.A. is 1144425992. It was assigned to this organization in the NPPES registry on June 20, 2007.

Q: What is Mark Reader, Ph.D., P.A.'s specialty?

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

Active since June 20, 2007

3655 OLD COURT RD, SUITE 22, BALTIMORE, MD 21208(410) 484-7780(410) 653-9415 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

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About Mark Reader, Ph.d., P.a. NPPES

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

MARK READER, PH.D., P.A. (NPI 1144425992) is a healthcare organization registered as a clinical in Baltimore, Maryland and active in the NPI registry since June 2007. The organization lists Mark Jay Reader, Psychologist, as its authorized official.

NPPES Registry Identity

NPI1144425992

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameMARK READER, PH.D., P.A.

Location Address3655 OLD COURT RD, SUITE 22Baltimore, MD 21208-3905

Mailing Address3655 Old Court Rd, Suite 22Baltimore, MD 21208-3905 · (410) 484-7780 · Fax (410) 653-9415

Phone(410) 484-7780

Fax(410) 653-9415

Organization SubpartNo

Authorized OfficialMark Jay ReaderPsychologist · (410) 484-7780

Enumeration DateJune 20, 2007

Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration

✔ NPI 1144425992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

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.

Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X

Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X

3655 OLD COURT RD, Baltimore, MD 21208

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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 MULTIPLE SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 12

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

MRS. SHOSHANA SASS LGPC

Counselor (Mental Health)

3655 OLD COURT RD
BALTIMORE, MD 21208

Baltimore County (410) 630-9064

SIMA ARIELLA COHEN LMSW

Social Worker

3655 OLD COURT RD
PIKESVILLE, MD 21208

Baltimore County (410) 630-9064

HADASSAH DOMNITCH

Social Worker

3655 OLD COURT RD
BALTIMORE, MD 21208

Baltimore County (410) 404-0786

MRS. BETH LOWENTHAL

Counselor (Mental Health)

3655 OLD COURT RD
BALTIMORE, MD 21208

Baltimore County (410) 630-9064

LISA MICHELE MARKS LMSW

Social Worker

3655 OLD COURT RD
PIKESVILLE, MD 21208

Baltimore County (410) 630-9064

MARILYN BLACKSTON. MD MD

General Practice

3655 OLD COURT RD, SUITE 7
BALTIMORE, MD 21208

Baltimore County (443) 431-3208

RIVKA STRUM

Counselor (Professional)

3655 OLD COURT RD
BALTIMORE, MD 21208

Baltimore County (410) 630-9064

MRS. RACHEL HEINEMANN LGPC

Counselor (Professional)

3655 OLD COURT RD
BALTIMORE, MD 21208

Baltimore County (410) 630-9064

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 Reader, Ph.D., P.A.'s NPI number?

The NPI number for Mark Reader, Ph.D., P.A. is 1144425992. It was assigned to this organization in the NPPES registry on June 20, 2007.

Where is Mark Reader, Ph.D., P.A. located?

Mark Reader, Ph.D., P.A. is located at 3655 Old Court Rd Suite 22, Baltimore, MD 21208. The listed phone number is (410) 484-7780.

What is Mark Reader, Ph.D., P.A.'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 Reader, Ph.D., P.A. was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.