Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Parker Psychiatric Services, Incorporated

Addiction (Substance Use Disorder) Counselor in Baltimore, MD · enumerated 2018 · authorized official Gary Parker, Ceo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659843373

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Parker Psychiatric Services, Incorporated

Parent organization Parker Psychiatric Services, Inc.

Practice address 940 Madison Ave Ste 202, Baltimore, MD, 21201

Phone (410) 777-8710

Fax (443) 434-0110

Enumeration date Dec 19, 2018

Last updated in NPPES Dec 19, 2018

Taxonomy & classification

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Gary Parker

Title Ceo

Phone (410) 440-0317

Other identifiers

Identifier	Type	State	Issuer
422901100	Medicaid	MD	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Parker Psychiatric Services, Incorporated?

Parker Psychiatric Services, Incorporated is registered in NPPES as a Addiction (Substance Use Disorder) Counselor (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-19.