Individual provider Active NPI

Mary Elizabeth Sabasteanski, PA-C

  • Medical Physician Assistant
  • Chestertown, MD
National Provider Identifier
1497006548
Registry record updated Jan 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Physician AssistantTaxonomy code 363AM0700X
License
C5-0012393 Issued in DE
Practice address
100 Brown St
Chestertown, MD 21620-1435
Phone
(410) 778-3300
NPI assigned
Sep 28, 2012
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 6, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Physician Assistant 363AM0700X C5-0012393 DE Primary
Physician Assistant 363A00000X C0004895 MD

Addresses

Primary practice location

100 Brown St
Chestertown, MD 21620-1435

Mailing address

23099 Raleigh Rd
Chestertown, MD 21620-3852

Other names 1

  • Mary Elizabeth Smith Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DE2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20130117000165 MD Practitioner - Physician Assistant 1052564317 Reassigns benefits to 3 organizations
I20260223003869 DE Practitioner - Physician Assistant 1052564317 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Delaware Post Acute Medical Services 1Group PAC ID 2466727755, 34 clinicians
De Pacs 2 PAGroup PAC ID 0244580926, 26 clinicians

Practice addresses (Care Compare)

700 Foulk Rd
Wilmington, DE 19803-3708
Phone (302) 764-0181

810 S Broom St
Wilmington, DE 19805-4245
Phone (302) 652-1181

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
C0004895MDMDPhysician Assistant
C5-0012393DEMDMedical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Emergency Medicine Associates, PA CurrentSince Jun 1, 2024 Accepting new patients
CS Pacs 3 Northeast, LLC CurrentSince Feb 16, 2026 Accepting new patients
Chester River Health Center CurrentSince Aug 21, 2012 Accepting new patients
Delaware Post Acute Medical Services 1 CurrentSince Feb 16, 2026 Accepting new patients
De Pacs 2 PA CurrentSince Feb 16, 2026 Accepting new patients
Emergency Medicine Associates P.a., P.C. CurrentSince Jun 1, 2024 Accepting new patients

Locations

700 Foulk Rd
Wilmington, DE 19803
Phone (302) 328-1582

810 S Broom St
Wilmington, DE 19805
Phone (302) 234-5420

100 Brown St
Chestertown, MD 21620
Phone (410) 778-3300

100 Hospital Rd
Prnc Frederck, MD 20678
Phone (410) 414-4791

200 Memorial Ave
Westminster, MD 21157
Phone (410) 848-3000

Interoperability endpoints

  • Direct secure messaging: msabasteanski547861@direct.umm.edu

Organizations & group practices 9

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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1348790400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1497006548",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23099 RALEIGH RD",
            "city": "CHESTERTOWN",
            "state": "MD",
            "postal_code": "216203852"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 BROWN ST",
            "city": "CHESTERTOWN",
            "state": "MD",
            "postal_code": "216201435",
            "telephone_number": "410-778-3300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SABASTEANSKI",
        "first_name": "MARY",
        "middle_name": "ELIZABETH",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-09-28",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "DE",
            "license": "C5-0012393",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MD",
            "license": "C0004895",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARY",
            "last_name": "SMITH",
            "middle_name": "ELIZABETH",
            "credential": "PA-C",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Chestertown, MD

Sources for this page

Verify at the official NPI Registry.