NPIMap

Organization Active NPI

Maryland Counseling Centers, Inc.

  • Clinical Psychologist
  • Rockville, MD
National Provider Identifier
1982742433
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
04068 Issued in MD
Legal business name
MARYLAND COUNSELING CENTERS, INC.
Practice address
20 Courthouse SQ
Suite 202
Rockville, MD 20850-2336
Phone
(301) 424-6955
Fax
(301) 424-4836
NPI assigned
Feb 4, 2007
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Dr. Frederick John Oeltjen, PH.D.NPI 1942348487
Title
President
Phone
(301) 424-6955

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 8

Specialty (taxonomy)CodeLicenseStatePrimary
Professional CounselorGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 101YP2500X LC1153 MD
Clinical PsychologistGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 103TC0700X 01189 MD
Clinical PsychologistGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 103TC0700X PSY964 DC
Clinical PsychologistGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 103TC0700X 04097 MD
Clinical PsychologistGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 103TC0700X 04068 MD Primary
Clinical Social WorkerGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 1041C0700X 08843 MD
Clinical Social WorkerGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 1041C0700X LICSW DC
Clinical Social WorkerGroup: 193400000X MULTIPLE SINGLE SPECIALTY GROUP 1041C0700X MD08541 MD

Addresses

Primary practice location

20 Courthouse SQ
Suite 202
Rockville, MD 20850-2336

Mailing address

20 Courthouse SQ
Suite 202
Rockville, MD 20850-2336
Phone (301) 424-6955

National Provider Directory

National Provider Directory
Tax ID family
Maryland Counseling Centers Inc2 organizations share this tax ID, including this one

Other organizations with this tax ID 1

Organizations that report the same tax identification number in the National Provider Directory.

Locations

20 Courthouse Sq
Ste 202
Rockville, MD 20850
Phone (301) 424-6955

Practitioners & affiliated clinicians

Practitioners 5

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1170547200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1982742433",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 COURTHOUSE SQ",
            "address_2": "SUITE 202",
            "city": "ROCKVILLE",
            "state": "MD",
            "postal_code": "208502336",
            "telephone_number": "301-424-6955",
            "fax_number": "301-424-4836"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 COURTHOUSE SQ",
            "address_2": "SUITE 202",
            "city": "ROCKVILLE",
            "state": "MD",
            "postal_code": "208502336",
            "telephone_number": "301-424-6955",
            "fax_number": "301-424-4836"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MARYLAND COUNSELING CENTERS, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-02-04",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "OELTJEN",
        "authorized_official_first_name": "FREDERICK",
        "authorized_official_middle_name": "JOHN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "301-424-6955",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PH.D."
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Counselor, Professional",
            "state": "MD",
            "license": "LC1153",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": "MD",
            "license": "01189",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": "DC",
            "license": "PSY964",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": "MD",
            "license": "04097",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": "MD",
            "license": "04068",
            "primary": true
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": "MD",
            "license": "08843",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": "DC",
            "license": "LICSW",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": "MD",
            "license": "MD08541",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rockville, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.