Ryan C. Haug, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA200001974 Issued in DC

Practice address

164 High St
Greenfield, MA 01301-2613

Phone

(413) 773-2263

Fax

(413) 773-2127

NPI assigned

Mar 24, 2006

Sex

Male

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 CT

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 1

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

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.

• Hartford Healthcare Medical Group, Inc

  • Surgery Physician
  • Wethersfield, CT
  • NPI 1043561301

  Physician Assistant

  Medicare reassignment NPD
• Hartford Hospital

  • General Acute Care Hospital
  • Hartford, CT
  • NPI 1770696643
  Medicare reassignment NPD
• Afc Physicians of Connecticut, PC

  • Urgent Care Clinic/Center
  • Danbury, CT
  • NPI 1003152984
  Medicare reassignment
• Hartford Healthcare Urgent Care Centers, LLC

  • Urgent Care Clinic/Center
  • Avon, CT
  • NPI 1093239683
  Medicare reassignment
• Hartford Hospital

  • Surgery Physician
  • Hartford, CT
  • NPI 1407806391
  Medicare reassignment
• The Charlotte Hungerford Hospital

  • General Acute Care Hospital
  • Torrington, CT
  • NPI 1629075734
  Medicare reassignment
• Afc Physicians of Connecticut, PC

  • Urgent Care Clinic/Center
  • Rocky Hill, CT
  • NPI 1285387530
  NPD
• Afc Physicians of Connecticut, PC

  • Urgent Care Clinic/Center
  • New Britain, CT
  • NPI 1366893216
  NPD
• Hartford Pathology Associates, P.C.

  • Anatomic Pathology & Clinical Pathology Physician
  • Hartford, CT
  • NPI 1063464477
  NPD
• The Charlotte Hungerford Hospital

  • Psychiatric Hospital Unit
  • Torrington, CT
  • NPI 1639255870
  NPD
• CT Emergency Medicine Specialists, LLC

  • Emergency Medicine Physician
  • Bristol, CT
  • NPI 1699892208
  NPD (past)
• Emergency Physicians of Connecticut PC

  • Emergency Medicine Physician
  • Waterbury, CT
  • NPI 1902278906

  Physician Assistant

  NPD (past)

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

{
    "created_epoch": "1143158400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784592000000",
    "number": "1013977065",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "759 CHESTNUT ST",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011991619",
            "telephone_number": "413-794-9999"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "164 HIGH ST",
            "city": "GREENFIELD",
            "state": "MA",
            "postal_code": "013012613",
            "telephone_number": "413-773-2263",
            "fax_number": "413-773-2127"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAUG",
        "first_name": "RYAN",
        "middle_name": "C.",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-24",
        "last_updated": "2026-07-21",
        "certification_date": "2026-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CT",
            "license": "001637",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "DC",
            "license": "PA200001974",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cailey Hart
• Chandra C Hartman, MD
• Michelle Harty, LPN
• Ruth Harwood
• Erika Hashberger, MA
• Sarah Elizabeth Hawrylak, MSW, LICSW
• Robert Haxby, MD
• Jeffrey Michael Hayer, M.D.
• Marybeth Hayes, NP
• John Healy

• Physician Assistant in Greenfield, MA
• Providers in Greenfield, MA by specialty
• Physician Assistant in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.