Individual provider Active NPI

Mary Catherine Drennan, LCSW-C

  • Clinical Social Worker
  • Randallstown, MD
National Provider Identifier
1174756761
Registry record updated Aug 16, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
09078 Issued in MD
Practice address
3510 Brenbrook Dr
Randallstown, MD 21133-4902
Phone
(410) 837-2050
Fax
(866) 629-0091
NPI assigned
Aug 28, 2009
Last updated
Aug 16, 2021By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 16, 2021

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 09078 MD Primary

Addresses

Primary practice location

3510 Brenbrook Dr
Randallstown, MD 21133-4902

Mailing address

1111 N Charles St
Baltimore, MD 21201-5505
Phone (410) 837-2050

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DC2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20110421000096 MD Practitioner - Clinical Social Worker 0840475679 Reassigns benefits to 3 organizations
I20240830002266 DC Practitioner - Clinical Social Worker 0840475679 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 1980
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Sailor Health Medical PAGroup PAC ID 4486182342, 301 clinicians

Practice addresses (Care Compare)

10711 Red Run Blvd
Suite 101
Owings Mills, MD 21117-5138
Phone (240) 201-3386

4445 Willard Ave
Suite 600
Chevy Chase, MD 20815-3786
Phone (240) 201-3386

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
09078MDMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Arundel Mental Health Professionals LLC CurrentSince Nov 1, 2022 Accepting new patients
Chase Brexton Health Services, Inc. CurrentSince Oct 1, 2018 Accepting new patients
Chase Brexton Health Services, Inc. CurrentSince Oct 1, 2018 Accepting new patients
Sailor Health Medical PA Clinical CurrentSince Jun 25, 2025 Accepting new patients
Psych Associates of Maryland LLC CurrentSince Jan 1, 2022 Accepting new patients
Cynthia Voelz Clinical Past Accepting new patients

Locations

2332 Galiano St
#2
Coral Gables, FL 33134
Phone (305) 998-0546

1111 N Charles St
Baltimore, MD 21201
Phone (410) 486-5991

2650 Quarry Lake Dr
Ste 200
Baltimore, MD 21209

4445 Willard Ave
Ste 600
Chevy Chase, MD 20815
Phone (202) 921-4287

10711 Red Run Blvd
Ste 101
Owings Mills, MD 21117
Phone (443) 492-8557

3510 Brenbrook Dr
Randallstown, MD 21133
Phone (410) 496-6441

2331 York Rd
Ste 100
Timonium, MD 21093

120 Sister Pierre Dr
Ste 403
Towson, MD 21204
Phone 4108236408104

6901 Security Blvd
Ste 200
Windsor Mill, MD 21244

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1251417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1629072000000",
    "number": "1174756761",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1111 N CHARLES ST",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212015505",
            "telephone_number": "410-837-2050",
            "fax_number": "866-629-0091"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3510 BRENBROOK DR",
            "city": "RANDALLSTOWN",
            "state": "MD",
            "postal_code": "211334902",
            "telephone_number": "410-837-2050",
            "fax_number": "866-629-0091"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DRENNAN",
        "first_name": "MARY",
        "middle_name": "CATHERINE",
        "credential": "LCSW-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-08-28",
        "last_updated": "2021-08-16",
        "certification_date": "2021-08-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MD",
            "license": "09078",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Randallstown, MD

Sources for this page

Verify at the official NPI Registry.