NPIMap

Individual provider Active NPI

Nathan Ewing

  • Physician Assistant
  • Baltimore, MD
National Provider Identifier
1629793997
Registry record updated Oct 23, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
C09053 Issued in MD
Practice address
520 W Fayette St Ste 300
Baltimore, MD 21201-1756
Phone
(301) 996-1546
NPI assigned
Oct 10, 2022
Last updated
Oct 23, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 23, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X C09053 MD Primary

Addresses

Primary practice location

520 W Fayette St Ste 300
Baltimore, MD 21201-1756

Mailing address

6201 Greenleigh Ave
Middle River, MD 21220-2004
Phone (410) 933-2704

Other practice location 1

8600 Old Georgetown Rd
Bethesda, MD 20814-1422
Phone (301) 896-2578

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20231018001403 DC Practitioner - Physician Assistant 6103271622 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

2900 Mercy LN
Cheverly, MD 20785-1157
Phone (301) 618-2273

901 Harry S Truman Dr N
Upper Marlboro, MD 20774-5477
Phone (240) 677-3000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
96.64 of 100Reported as group
Quality
88.96
Promoting interoperability
100
Improvement activities
40
Cost
73.82

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
C09053MDMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Dimensions Healthcare Associates Inc CurrentSince Sep 25, 2023 Accepting new patients
Dimensions Health Associates Dba University of Maryland Capital Region CurrentSince Sep 25, 2023 Accepting new patients
Johns Hopkins University CurrentSince Sep 1, 2025 Accepting new patients
Johns Hopkins University CurrentSince Sep 1, 2025 Accepting new patients

Locations

5255 Loughboro Rd NW
Washington, DC 20016
Phone (202) 243-2280

8600 Old Georgetown Rd
Bethesda, MD 20814
Phone (301) 896-2578

2900 Mercy Ln
Cheverly, MD 20785
Phone (301) 618-2010

900 Elkridge Landing Rd
Fl 2
Linthicum Heights, MD 21090
Phone (443) 462-5010

6201 Greenleigh Ave
Middle River, MD 21220
Phone (410) 933-2704

Interoperability endpoints

  • Direct secure messaging: newing529523@direct.umm.edu

Organizations & group practices 5

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": "1665360000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761177600000",
    "number": "1629793997",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-933-2704",
            "fax_number": "410-500-4266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "520 W FAYETTE ST STE 300",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212011756",
            "telephone_number": "301-996-1546"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8600 Old Georgetown Rd",
            "address_purpose": "LOCATION",
            "city": "Bethesda",
            "state": "MD",
            "postal_code": "208141422",
            "country_code": "US",
            "telephone_number": "301-896-2578",
            "fax_number": "301-897-1378",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "EWING",
        "first_name": "NATHAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-10-10",
        "last_updated": "2025-10-23",
        "certification_date": "2025-10-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MD",
            "license": "C09053",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Baltimore, MD

Sources for this page

Verify at the official NPI Registry.