Rosemary Joy Larson, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA101842 Issued in MA

Practice address

100 Wason Ave Ste 100
Springfield, MA 01107-1299

Phone

(413) 732-7426

Fax

(413) 734-2371

NPI assigned

Jun 12, 2025

Last updated

Jul 10, 2025By the provider in NPPES

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 MA

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

Specialty

Physician Assistant

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ear Nose and Throat Surgeons of Western New England LLCGroup PAC ID 5991746265, 16 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Medical Ctr Hospital, Springfield, MA, CCN 220066
• Cooley Dickinson Hospital Inc,the Hospital, Northampton, MA, CCN 220015
• Baystate Medical Center Hospital, Springfield, MA, CCN 220077

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Interoperability endpoints

• Direct secure messaging: rosemary.larson.1@30149.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Ear, Nose & Throat Surgeons of Western New England, LLC

  • Otolaryngology Physician
  • Springfield, MA
  • NPI 1386685881
  Medicare reassignment Care Compare group

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

• Baystate Medical Center Inc

  dba Baystate Medical Center

  • General Acute Care Hospital
  • Springfield, MA
  • NPI 1487655064
  Care Compare affiliation
• Baystate Medical Center Inc

  dba Baystate Reference Laboratories

  • Clinical Medical Laboratory
  • Springfield, MA
  • NPI 1568488450

  Hospital

  Care Compare affiliation
• Cooley Dickinson Hospital Inc

  • General Acute Care Hospital
  • Northampton, MA
  • NPI 1477596310
  Care Compare affiliation
• Cooley Dickinson Hospital Inc

  • Psychiatric Hospital Unit
  • Northampton, MA
  • NPI 1871512814
  Care Compare affiliation
• The Mercy Hospital Inc

  dba Mercy Medical Center

  • General Acute Care Hospital
  • Springfield, MA
  • NPI 1043204316
  Care Compare affiliation
• The Mercy Hospital Inc

  dba Mercy Rehabilitation Hospital

  • Rehabilitation Hospital Unit
  • Springfield, MA
  • NPI 1750360798
  Care Compare affiliation

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

{
    "created_epoch": "1749686400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752105600000",
    "number": "1851286363",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14 MAPLE ST",
            "city": "UXBRIDGE",
            "state": "MA",
            "postal_code": "015691299",
            "telephone_number": "508-375-8043"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 WASON AVE STE 100",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011071299",
            "telephone_number": "413-732-7426",
            "fax_number": "413-734-2371"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14 Maple St",
            "address_purpose": "LOCATION",
            "city": "Uxbridge",
            "state": "MA",
            "postal_code": "015691299",
            "country_code": "US",
            "telephone_number": "508-375-8043",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LARSON",
        "first_name": "ROSEMARY",
        "middle_name": "JOY",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-06-12",
        "last_updated": "2025-07-10",
        "certification_date": "2025-07-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA101842",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brenda Larose, LMHC
• Jason Larose
• Megan Liana Larose, LCMT
• Amy Larow, PA
• Kristen Rose Larson, PT
• Michelle Lashua
• Hayley Genna Lataille
• Luke David Latario, MD
• Jayla Latham
• Nicole Latham

• Physician Assistant in Springfield, MA
• Providers in Springfield, 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 10, 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.