Katherine L Mostrag, NP

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

432955 Issued in NY

Practice address

550 1St Ave
New York, NY 10016-6402

Phone

(212) 263-7300

NPI assigned

Oct 17, 2014

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in NY, VA, NJ3 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 3

Specialty

Nurse Practitioner

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

New York UniversityGroup PAC ID 1355232422, 5,925 clinicians

Hunterdon Specialty CareGroup PAC ID 4587966601, 94 clinicians

Uva Community Health Medical Group LLCGroup PAC ID 4688587967, 339 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Uva Health Culpeper Medical Center Hospital, Culpeper, VA, CCN 490019
• University of Virginia Medical Center Hospital, Charlottesville, VA, CCN 490009
• Hunterdon Medical Center Hospital, Flemington, NJ, CCN 310005

Merit-based Incentive Payment System (MIPS)

Final score

90.8 of 100Reported as group

Quality

91.79

Promoting interoperability

100

Improvement activities

40

Cost

75.18

Merit-based Incentive Payment System (MIPS)

Final score

86.45 of 100Reported as group

Quality

79.76

Promoting interoperability

100

Improvement activities

40

Cost

75.07

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H1722

Interoperability endpoints

• Direct secure messaging: kmostrag639834@nyumc.direct-ci.com

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.

• Hunterdon Specialty Care PC

  • General Practice Physician
  • Flemington, NJ
  • NPI 1306216874
  Medicare reassignment Care Compare group NPD
• New York University

  • Cardiovascular Disease Physician
  • Boynton Beach, FL
  • NPI 1285826438

  NY

  Medicare reassignment Care Compare group NPD
• Uva Community Health Medical Group, LLC

  • Multi-Specialty Clinic/Center
  • Charlottesville, VA
  • NPI 1598475741
  Medicare reassignment Care Compare group NPD
• Critical Care Physicians of New Jersey PC

  • Critical Care Medicine (Internal Medicine) Physician
  • Turnersville, NJ
  • NPI 1154682680
  Medicare reassignment NPD
• Emergency Medicine Associates, P.a.,P.C.

  • Internal Medicine Physician
  • Dulles, VA
  • NPI 1376917070
  Medicare reassignment NPD
• Sound Physicians Intensivists of Virginia LLC

  • Critical Care Medicine (Internal Medicine) Physician
  • Richmond, VA
  • NPI 1619520806
  Medicare reassignment NPD
• University of Virginia Physicians Group

  • Sports Medicine (Neuromusculoskeletal Medicine) Physician
  • Charlottesville, VA
  • NPI 1033138250
  Medicare reassignment NPD
• Emergency Medicine Associates P.a., P.C.

  • Internal Medicine Physician
  • Culpeper, VA
  • NPI 1881559102
  NPD
• Hunterdon Specialty Care

  • Foot & Ankle Surgery Podiatrist
  • Lambertville, NJ
  • NPI 1699657619
  NPD
• Hunterdon Specialty Care, PC

  • Foot & Ankle Surgery Podiatrist
  • Flemington, NJ
  • NPI 1033625678
  NPD
• New York University

  • Physical Medicine & Rehabilitation Physician
  • Boynton Beach, FL
  • NPI 1104787613
  NPD
• Arnot Medical Services PLLC

  • Internal Medicine Physician
  • Elmira, NY
  • NPI 1427326768
  NPD (past)

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

• Hunterdon Medical Center

  • General Acute Care Hospital
  • Flemington, NJ
  • NPI 1922095116
  Care Compare affiliation
• Rector & Visitors of the University of Virginia

  • General Acute Care Hospital
  • Charlottesville, VA
  • NPI 1780630608
  Care Compare affiliation
• Uva Culpeper Medical Center

  • General Acute Care Hospital
  • Culpeper, VA
  • NPI 1669538047
  Care Compare affiliation

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

{
    "created_epoch": "1413504000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1336543404",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "700 HICKSVILLE RD STE 205",
            "city": "BETHPAGE",
            "state": "NY",
            "postal_code": "117143472"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "550 1ST AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100166402",
            "telephone_number": "212-263-7300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOSTRAG",
        "first_name": "KATHERINE",
        "middle_name": "L",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-10-17",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "NY",
            "license": "432955",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kstrobel339809@direct.healthsystem.virginia.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "501 Sunset Ln",
            "city": "Culpeper",
            "state": "VA",
            "country_code": "US",
            "postal_code": "227013917",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Michele G. Mostel, L.AC.
• Sarah Wofford Mosteller, LCAT-LP, ATR-P
• Rachel L Moster, MD
• Katherine Mostkoff, LCSW
• Vanessa Kim Mostofsky, OD
• Eileen Mota
• Emerson Mota, CRNA
• Frank Mota, MD
• Kery Mota, PT
• Manuelissa Mota

• Acute Care Nurse Practitioner in New York, NY
• Providers in New York, NY by specialty
• Acute Care Nurse Practitioner in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 8, 2026; 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.