Marissa Lynn Bartone, LCSW-C – Clinical Social Worker

Key facts

NPI: 1699474262
Entity type: Individual (NPI type 1)
Primary specialty: Clinical Social Worker 1041C0700X
License: 30950 (MD)
Practice address: 135 N Parke St
Aberdeen, MD 21001-2428
Phone: (443) 625-1600
Fax: (410) 272-3306
NPI assigned: Mar 2, 2023
Sex: Female
Sole proprietor: No

Organizations & group practices 1

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

Key Point Health Services, Inc. Adolescent and Children Mental Health Clinic/Center · Aberdeen, MD · NPI 1497760847

Care Compare group NPD (past)

Medicare Care Compare profile

Specialty: Clinical Social Worker
Education: Other, 2023
Medicare assignment: Accepts the Medicare-approved amount as payment in full
Group practices: Key Point Health Services, Inc. (30 clinicians)

Practice addresses (Care Compare)

135 N Parke St
Aberdeen, MD 21001-2428
Phone (443) 625-1600

Medicare participation

Medicare fee-for-service enrollment: Not listed in the public Medicare enrollment file
Eligible to order & refer: Part B services: Yes · DME: Yes · Home health: No · Power mobility devices: No · Hospice: No

National Provider Directory

Medicare enrollment (NPD): Yes

State licenses

License	State	Type	Specialty
30950	MD	MD	Social Worker

Practice roles

Organization	Specialty	Status	New patients
Key Point Health Services, Inc.		Past	Accepting new patients

Specialties & licenses

Specialty (taxonomy)	Code	License	State	Primary
Clinical Social Worker	1041C0700X	30950	MD	Yes

Addresses

Primary practice location

135 N Parke St
Aberdeen, MD 21001-2428

Mailing address

135 N Parke St
Aberdeen, MD 21001-2428
Phone (443) 625-1600

Other providers in Aberdeen, MD

All providers in Aberdeen, MD · Clinical Social Worker in Maryland

Sources for this page

NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Jun 11, 2026. Information in NPPES is self-reported and not verified by CMS.
NUCC Health Care Provider Taxonomy: specialty names.
Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
Order and Referring (CMS).
Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.