Joshua Ralston, M.D.

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

1023578 Issued in MA

Practice address

199 Reedsdale Rd
Milton, MA 02186-3900

Phone

(617) 696-4600

NPI assigned

Apr 1, 2022

Sex

Male

Sole proprietor

Yes

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 CO, MA2 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 2

Specialty

Internal Medicine

Education

University of Kansas School of Med (KC/Wich/Sal), 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Select Physical Therapy Holdings IncGroup PAC ID 9537076401, shared by 76 NPIs, 1,992 clinicians

Associated Physicians of Harvard Medical Faculty Physicians at Beth IsGroup PAC ID 6305749987, 566 clinicians

Catholic Health Initiatives ColoradoGroup PAC ID 8022927342, 1,230 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Beth Israel Deaconess Hospital - Milton Hospital, Milton, MA, CCN 220108
• Longmont United Hospital Hospital, Longmont, CO, CCN 060003
• Beth Israel Deaconess Hospital - Needham Hospital, Needham, MA, CCN 220083
• Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086
• St Elizabeth Hospital Hospital, Fort Morgan, CO, CCN 060044

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.

• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  dba Medicine - APHMFP at BIDMC Inc.

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1497151773
  Medicare reassignment Care Compare group NPD
• Catholic Health Initiatives Colorado

  dba Ctsa Cardiac Thor Surg

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Colorado Springs, CO
  • NPI 1356783351
  Medicare reassignment Care Compare group
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  Medicare reassignment NPD
• Long Term Care and Rehab Consultants

  • Family Medicine Physician
  • Arvada, CO
  • NPI 1306946728
  Medicare reassignment NPD
• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  dba APHMFP-Emergency Medicine

  • Emergency Medical Services (Emergency Medicine) Physician
  • Boston, MA
  • NPI 1952358533
  Medicare reassignment
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Emergency Medicine - HMFP at BIDMC

  • Emergency Medicine Physician
  • Boston, MA
  • NPI 1316987993
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Harvard Medical Faculty Physicians

  • Multi-Specialty Clinic/Center
  • Boston, MA
  • NPI 1679397913
  NPD
• Catholic Health Initiatives Colorado

  dba Edss Endocrinology Sum

  • Endocrinology, Diabetes & Metabolism Physician
  • Frisco, CO
  • NPI 1588273056
  NPD
• Catholic Health Initiatives Colorado

  dba CommonSpirit Orthopedics Longmont

  • Orthopaedic Surgery Physician
  • Longmont, CO
  • NPI 1891675294
  NPD

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

• Beth Israel Deaconess Hospital Milton Inc

  • General Acute Care Hospital
  • Milton, MA
  • NPI 1174618953
  Care Compare affiliation
• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  Care Compare affiliation
• Catholic Health Initiatives Colorado

  dba St. Elizabeth Hospital

  • General Acute Care Hospital
  • Fort Morgan, CO
  • NPI 1881337392
  Care Compare affiliation
• Longmont United Hospital

  • General Acute Care Hospital
  • Longmont, CO
  • NPI 1366465866
  Care Compare affiliation

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

{
    "created_epoch": "1648771200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767916800000",
    "number": "1962142364",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "199 REEDSDALE RD",
            "city": "MILTON",
            "state": "MA",
            "postal_code": "021863900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "199 REEDSDALE RD",
            "city": "MILTON",
            "state": "MA",
            "postal_code": "021863900",
            "telephone_number": "617-696-4600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1950 Mountain View Ave",
            "address_purpose": "LOCATION",
            "city": "Longmont",
            "state": "CO",
            "postal_code": "805013129",
            "country_code": "US",
            "telephone_number": "303-485-3066",
            "fax_number": "303-485-3060",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RALSTON",
        "first_name": "JOSHUA",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-04-01",
        "last_updated": "2026-01-09",
        "certification_date": "2026-01-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MA",
            "license": "1023578",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CO",
            "license": "DR.0072042",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "DR.0072042",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Primary Homecare Specialties, LLC
• Donna Principato Sawyer, RN,CS,MSN
• David Joseph Purcell, MD
• Brad Purga, RPH
• Brian Quinn
• Brandi Ramunno
• Soniya Rana
• Delaney Reardon
• Kayley Reay
• Juliette Regis

• Hospitalist Physician in Milton, MA
• Providers in Milton, MA by specialty
• Hospitalist Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 9, 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.