Individual provider Active NPI

Patrick A McMahon, DNP

  • Certified Registered Nurse Anesthetist
  • Fort Belvoir, VA
National Provider Identifier
1679302384
Registry record updated May 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
24190701 Issued in VA
Practice address
9300 Dewitt Loop
Fort Belvoir, VA 22060-5285
Phone
(571) 231-3224
NPI assigned
Jul 31, 2024
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 1, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 24190701 VA Primary

Addresses

Primary practice location

9300 Dewitt Loop
Fort Belvoir, VA 22060-5285

Mailing address

7116 Point Replete Cir
Fort Belvoir, VA 22060-7444
Phone (970) 819-1375

Other practice location 1

101 Hospital Center Blvd
Stafford, VA 22554-6200
Phone (540) 741-7614

Other practice location 2

1001 Sam Perry Blvd
Fredericksburg, VA 22401-4453
Phone (540) 741-7614

Other practice location 3

1201 Sam Perry Blvd
Fredericksburg, VA 22401-4490
Phone (540) 741-7614

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA, DC2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20250423002696 VA Practitioner - Certified Registered Nurse Anesthetist (Crna) 2961927850 Reassigns benefits to 5 organizations
I20250428003060 DC Practitioner - Certified Registered Nurse Anesthetist (Crna) 2961927850 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mary Washington Healthcare Specialty Services, LLCGroup PAC ID 5991605826, 136 clinicians
Inova Cares - CommunityGroup PAC ID 9537526330, 187 clinicians
Medstream Anesthesia PLLCGroup PAC ID 7416198049, 571 clinicians

Practice addresses (Care Compare)

1001 Sam Perry Blvd
Fredericksburg, VA 22401-4453
Phone (540) 741-7614

3600 Joseph Siewick Dr
Fairfax, VA 22033-1709
Phone (703) 391-3600

44045 Rivderside Pkwy
Leesburg, VA 20176-5101
Phone (703) 858-6000

500 Hospital Dr
Warrenton, VA 20186-3027
Phone (540) 316-5000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
24190701VAMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Northstar Anesthesia of Virginia, LLC CurrentSince Apr 1, 2025 Accepting new patients
Medstream Anesthesia PLLC Nurse Anesthetist, Certified Registered CurrentSince May 6, 2025 Accepting new patients
Mary Washington Healthcare Specialty Services LLC Nurse Anesthetist, Certified Registered CurrentSince Sep 22, 2025 Accepting new patients
Valley Health Anesthesia Services, LLC CurrentSince Oct 6, 2025 Accepting new patients
Inova Cares - Community CurrentSince May 1, 2025 Accepting new patients

Locations

6355 Walker Ln
Ste 200
Alexandria, VA 22310
Phone (703) 922-9501

2501 Parkers Ln
Alexandria, VA 22306
Phone (703) 664-7000

736 Battlefield Blvd N
Chesapeake, VA 23320
Phone (757) 312-6124

541 Sunset Ln
Ste 201
Culpeper, VA 22701
Phone (540) 829-0700

3600 Joseph Siewick Dr
Fairfax, VA 22033
Phone (703) 391-3037

1201 Sam Perry Blvd
Fredericksburg, VA 22401
Phone (540) 741-7000

1001 Sam Perry Blvd
Fredericksburg, VA 22401
Phone (540) 741-1100

44045 Riverside Pkwy
Leesburg, VA 20176
Phone (703) 858-6040

6801 Governor Gc Peery Hwy
Richlands, VA 24641
Phone (276) 523-8600

101 Hospital Center Blvd
Stafford, VA 22554
Phone (540) 741-3340

500 Hospital Dr
Warrenton, VA 20186
Phone (540) 316-5000

1840 Amherst St
Winchester, VA 22601
Phone (540) 536-8700

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 and National Provider Directory roles.

Hospital & facility affiliations 7

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": "1722384000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777593600000",
    "number": "1679302384",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7116 POINT REPLETE CIR",
            "city": "FORT BELVOIR",
            "state": "VA",
            "postal_code": "220607444",
            "telephone_number": "970-819-1375"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9300 DEWITT LOOP",
            "city": "FORT BELVOIR",
            "state": "VA",
            "postal_code": "220605285",
            "telephone_number": "571-231-3224"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "101 Hospital Center Blvd",
            "address_purpose": "LOCATION",
            "city": "Stafford",
            "state": "VA",
            "postal_code": "225546200",
            "country_code": "US",
            "telephone_number": "540-741-7614",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1001 Sam Perry Blvd",
            "address_purpose": "LOCATION",
            "city": "Fredericksburg",
            "state": "VA",
            "postal_code": "224014453",
            "country_code": "US",
            "telephone_number": "540-741-7614",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1201 Sam Perry Blvd",
            "address_purpose": "LOCATION",
            "city": "Fredericksburg",
            "state": "VA",
            "postal_code": "224014490",
            "country_code": "US",
            "telephone_number": "540-741-7614",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCMAHON",
        "first_name": "PATRICK",
        "middle_name": "A",
        "credential": "DNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2024-07-31",
        "last_updated": "2026-05-01",
        "certification_date": "2026-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "VA",
            "license": "24190701",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fort Belvoir, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (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.