Individual provider Active NPI

Karen Abigail Robertson-Sanchez, CRNA

  • Certified Registered Nurse Anesthetist
  • Fredericksburg, VA
National Provider Identifier
1265476287
Registry record updated Jun 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
0024197460 Issued in VA
Practice address
1001 Sam Perry Blvd
Fredericksburg, VA 22401-4453
Phone
(540) 741-7614
NPI assigned
Jun 16, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 30, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 0024197460 VA Primary
Certified Registered Nurse Anesthetist 367500000X R117473 MD

Addresses

Primary practice location

1001 Sam Perry Blvd
Fredericksburg, VA 22401-4453

Mailing address

1340 Central Park Blvd Ste 100
Fredericksburg, VA 22401-4940
Phone (800) 222-1442

Other practice location 1

1201 Sam Perry Blvd Ste 101
Fredericksburg, VA 22401-4490
Phone (540) 741-7614

Other practice location 2

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

Other practice location 3

3001 Hospital Dr
Cheverly, MD 20785-1189
Phone (301) 618-6100

Other identifiers 1

IdentifierTypeStateIssuer
406098901MedicaidMD

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, MD, AZ3 enrollments

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20040820000177 DC Practitioner - Certified Registered Nurse Anesthetist (Crna) 2365416963 Reassigns benefits to 4 organizations
I20150511001847 MD Practitioner - Certified Registered Nurse Anesthetist (Crna) 2365416963 Reassigns benefits to 1 organization
I20260114000745 AZ Practitioner - Certified Registered Nurse Anesthetist (Crna) 2365416963 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
First Colonies Anesthesia Associates, LLCGroup PAC ID 8426039744, 339 clinicians
Banner-University Medical GroupGroup PAC ID 7719899871, 1,066 clinicians

Practice addresses (Care Compare)

1500 Forest Glen Rd
Silver Spring, MD 20910-1460
Phone (301) 754-7000

1625 N Campbell Ave
Tucson, AZ 85719-4330
Phone (520) 694-0111

400 W 7TH St
Frederick, MD 21701-4506
Phone (240) 566-3800

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
83.31 of 100Reported as group
Quality
73.89
Promoting interoperability
100
Improvement activities
40
Cost
70.47

Merit-based Incentive Payment System (MIPS)

Final score
63.85 of 100Reported as group
Quality
57.47
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
R117473MDMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
First Colonies Anesthesia Associates, LLC Nurse Anesthetist, Certified Registered CurrentSince Jan 22, 2023 Accepting new patients
North American Partners in Anesthesia Maryland LLC CurrentSince Sep 22, 2020 Accepting new patients
Banner-University Medical Group CurrentSince Dec 8, 2025 Accepting new patients
Medstar Medical Group II LLC CurrentSince Oct 1, 2024 Accepting new patients
Banner-University Medical Group CurrentSince Dec 8, 2025 Accepting new patients
Medstar Medical Group Anesthesiology LLC CurrentSince Jun 1, 2018 Accepting new patients
Medstar Medical Group Anesthesiology LLC CurrentSince Jun 1, 2018 Accepting new patients
Sterling Anesthesia Management Services of Maryland Past Accepting new patients

Locations

535 N Wilmot Rd
Ste 101
Tucson, AZ 85711
Phone (520) 694-9988

2800 E Ajo Way
Tucson, AZ 85713
Phone (520) 294-4471

1625 N Campbell Ave
Tucson, AZ 85719

3838 N Campbell Ave
Bldg 2
Tucson, AZ 85719

110 Irving St NW
Washington, DC 20010
Phone (202) 877-2000

1145 19th St NW
Ste 311
Washington, DC 20036
Phone (202) 429-2401

6430 Rockledge Dr
Ste 160
Bethesda, MD 20817
Phone (301) 312-6144

7503 Surratts Rd
Clinton, MD 20735
Phone (301) 868-8000

400 W 7th St
Frederick, MD 21701
Phone (240) 566-3300

3001 Hospital Dr
Hyattsville, MD 20785
Phone (301) 618-2000

11210 Old Georgetown Rd
Rockville, MD 20852
Phone (301) 881-7770

11210 Old Georgetown Rd
#12202
Rockville, MD 20852
Phone (301) 881-7770

1500 Forest Glen Rd
Silver Spring, MD 20910
Phone (301) 754-7230

8322 Bellona Ave
Ste 201
Towson, MD 21204
Phone (410) 337-2688

68 S Service Rd
Ste 350
Melville, NY 11747
Phone (516) 945-3107

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 and National Provider Directory roles.

Hospital & facility affiliations 4

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": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782777600000",
    "number": "1265476287",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1340 CENTRAL PARK BLVD STE 100",
            "city": "FREDERICKSBURG",
            "state": "VA",
            "postal_code": "224014940",
            "telephone_number": "800-222-1442"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 SAM PERRY BLVD",
            "city": "FREDERICKSBURG",
            "state": "VA",
            "postal_code": "224014453",
            "telephone_number": "540-741-7614"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1201 Sam Perry Blvd Ste 101",
            "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"
        },
        {
            "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": "3001 Hospital Dr",
            "address_purpose": "LOCATION",
            "city": "Cheverly",
            "state": "MD",
            "postal_code": "207851189",
            "country_code": "US",
            "telephone_number": "301-618-6100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ROBERTSON-SANCHEZ",
        "first_name": "KAREN",
        "middle_name": "ABIGAIL",
        "name_prefix": "Mrs.",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-16",
        "last_updated": "2026-06-30",
        "certification_date": "2026-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "VA",
            "license": "0024197460",
            "primary": true
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MD",
            "license": "R117473",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "406098901",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Fredericksburg, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 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.