Karen Aquino Tolosa, NP

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

R160120 Issued in MD

Practice address

10801 Lockwood Dr Ste 210
Silver Spring, MD 20901-1563

Phone

(301) 298-1040

NPI assigned

Jun 18, 2017

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in DC, MD2 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

Specialty

Nurse Practitioner

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

82.34 of 100Reported as group

Quality

67.9

Promoting interoperability

100

Improvement activities

40

Cost

69.47

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/16404/brand/1/csg/1/fhir/r4

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.

• Medstar Medical Group II LLC

  • General Practice Physician
  • Baltimore, MD
  • NPI 1184046187

  DC

  Medicare reassignment Care Compare group NPD
• Washington Hospital Center Corp

  • Neurological Surgery Physician
  • Washington, DC
  • NPI 1407870124
  Medicare reassignment NPD
• Washington Hospital Center Corp

  • Registered Dietitian
  • Washington, DC
  • NPI 1477654978
  NPD
• Washington Hospital Center Corp

  • General Practice Physician
  • Washington, DC
  • NPI 1629394424
  NPD
• Kathryn D. Kelly, MD, PC

  • Internal Medicine Physician
  • Silver Spring, MD
  • NPI 1639521966
  NPD (past)
• Medstar Medical Group II LLC

  • Internal Medicine Physician
  • Washington, DC
  • NPI 1376887844
  NPD (past)

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

{
    "created_epoch": "1497744000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760400000000",
    "number": "1477083905",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2817 JUTLAND RD",
            "city": "KENSINGTON",
            "state": "MD",
            "postal_code": "208952819",
            "telephone_number": "301-933-0222"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10801 LOCKWOOD DR STE 210",
            "city": "SILVER SPRING",
            "state": "MD",
            "postal_code": "209011563",
            "telephone_number": "301-298-1040"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOLOSA",
        "first_name": "KAREN",
        "middle_name": "AQUINO",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-06-18",
        "last_updated": "2025-10-14",
        "certification_date": "2025-10-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "MD",
            "license": "R160120",
            "primary": true
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "DC",
            "license": "RN1002826",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Luis A. Toledo-Espiett, O.D.
• Mist Toler, AGPCNP-BC
• Toller Enterprises LLC
• Toller Enterprises LLC
• Toller Enterprises LLC
• Addisalem Dessissa Tolossa
• Genevieve Tomas
• Tamia Barnes Tomasek, LCPC
• Ashley Nicole Tomasko, OTR/L
• Elise Tomedi

• Acute Care Nurse Practitioner in Silver Spring, MD
• Providers in Silver Spring, MD by specialty
• Acute Care Nurse Practitioner in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 14, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.