Ryan Knopper, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

298460 Issued in NY

Practice address

207 Foote Ave
Jamestown, NY 14701-7077

Phone

(716) 664-8120

NPI assigned

Apr 25, 2016

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in NY, AZ, TX, CA, NV5 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 5

Specialty

Emergency Medicine

Education

Loma Linda University School of Medicine, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sierra Estrellas Emergency Physicians LLCGroup PAC ID 5193002954, 38 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Yuma Regional Medical Center Hospital, Yuma, AZ, CCN 030013
• Enloe Health Hospital, Chico, CA, CCN 050039

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Sierra Estrellas Emergency Physicians LLC

  • Emergency Medicine Physician
  • Yuma, AZ
  • NPI 1578001319
  Medicare reassignment Care Compare group NPD
• Buffalo Emergency Associates LLP

  • Emergency Medicine Physician
  • Williamsville, NY
  • NPI 1508816521
  Medicare reassignment NPD
• Chico Emergency Physicians Medical Group, Inc

  • Emergency Medicine Physician
  • Chico, CA
  • NPI 1578598058
  Medicare reassignment NPD
• Emergency Medicine Services of TX, PLLC

  • Emergency Medicine Physician
  • San Antonio, TX
  • NPI 1245938729
  Medicare reassignment NPD
• Winnemucca Emergency Physicians LLC

  • Emergency Medicine Physician
  • Winnemucca, NV
  • NPI 1770532640
  Medicare reassignment
• Emergency Physician Services of New York, P.C.

  • Emergency Medicine Physician
  • Poughkeepsie, NY
  • NPI 1093759847
  NPD (past)
• Yuma Regional Medical Center

  • General Acute Care Hospital
  • Yuma, AZ
  • NPI 1194706655
  NPD (past)

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

• Enloe Medical Center

  • General Acute Care Hospital
  • Chico, CA
  • NPI 1417901091
  Care Compare affiliation
• Yuma Regional Medical Center

  • General Acute Care Hospital
  • Yuma, AZ
  • NPI 1194706655
  Care Compare affiliation

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

{
    "created_epoch": "1461542400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776038400000",
    "number": "1508211889",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 HIGH ST",
            "address_2": "BUFFALO GENERAL MEDICAL CENTER, DEPT. OF E.M. (D-6)",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142031126",
            "telephone_number": "716-859-1499",
            "fax_number": "716-859-1555"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "207 FOOTE AVE",
            "city": "JAMESTOWN",
            "state": "NY",
            "postal_code": "147017077",
            "telephone_number": "716-664-8120"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNOPPER",
        "first_name": "RYAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-25",
        "last_updated": "2026-04-13",
        "certification_date": "2026-04-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A169771",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "298460",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katarzyna Klimczuk
• Mariusz Klimczuk
• Ronald Dale Klizek, MD
• Knickerbocker Dialysis Inc
• Mari Justina Knight, LPN
• Rachael Danielle Kofod, M.S, , CF- SLP
• Andrew Corey Kohl, DDS
• Robert Kosalka, MD
• Deidre Christine Kowalewski
• Marissa Ann Kozlowski, M.S., CCC-SLP

• Emergency Medicine Physician in Jamestown, NY
• Providers in Jamestown, NY by specialty
• Emergency Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 13, 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.