Katherine M Callaghan, M.D.

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

259143 Issued in MA

Practice address

328 Shrewsbury St
Worcester, MA 01604-5465

Phone

(508) 755-4861

Fax

(508) 752-1392

NPI assigned

Jun 17, 2010

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

Other identifiers 1

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Obstetrics/Gynecology

Education

University of Massachusetts Medical School, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Physicians for Women'S Health, LLCGroup PAC ID 3274430665, 319 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Umass Memorial Medical Center/University Campus Hospital, Worcester, MA, CCN 220163

Merit-based Incentive Payment System (MIPS)

Final score

89.08 of 100Reported as group

Quality

85.82

Promoting interoperability

100

Improvement activities

40

Cost

77.8

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

82.98

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: katherine.callaghan.1@10170.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 and National Provider Directory roles.

• Physicians for Women'S Health LLC

  • Obstetrics & Gynecology Physician
  • Rocky Hill, CT
  • NPI 1801826680

  MA

  Medicare reassignment Care Compare group
• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Umass Memorial Medical Group, Inc.

  • Urgent Care Clinic/Center
  • Oxford, MA
  • NPI 1982381018
  NPD
• Umass Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1831151455
  NPD (past)

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

• Umass Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1831151455
  Care Compare affiliation

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

{
    "created_epoch": "1276732800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783382400000",
    "number": "1922329663",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "328 SHREWSBURY ST",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016045465"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "328 SHREWSBURY ST",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016045465",
            "telephone_number": "508-755-4861",
            "fax_number": "508-752-1392"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALLAGHAN",
        "first_name": "KATHERINE",
        "middle_name": "M",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-06-17",
        "last_updated": "2026-07-07",
        "certification_date": "2026-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MA",
            "license": "259143",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110099641A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Lauren Caliri
• Joanne Lynne Calista
• David J Calixte, PHARMD, RPH
• Vanessa Calixto
• Edward R Calkins, MD
• Kyle Matthew Callaghan
• Sheila M Callahan Butler, MD
• Colleen J Callahan, M.ED., BCBA, LABA
• Daniel Callahan, D.M.D
• Megan Leslie Calmus, M.D.

• Obstetrics & Gynecology Physician in Worcester, MA
• Providers in Worcester, MA by specialty
• Obstetrics & Gynecology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 7, 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.