Justin David Larson, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

266658 Issued in MA

Practice address

1493 Cambridge St
Cambridge, MA 02139-1099

Phone

(617) 665-1000

NPI assigned

Jun 18, 2010

Last updated

Dec 20, 2020By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Emergency Medicine

Education

Saint Louis University School of Medicine, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup PAC ID 4486567104, shared by 12 NPIs, 1,693 clinicians

Bid-Milton Physician Associates IncGroup PAC ID 7416375399, 54 clinicians

Beth Israel Lahey Health Specialty Care, Inc.Group PAC ID 2365405024, 264 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Winchester Hospital Hospital, Winchester, MA, CCN 220105
• Mount Auburn Hospital Hospital, Cambridge, MA, CCN 220002
• Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086
• Beth Israel Deaconess Hospital - Milton Hospital, Milton, MA, CCN 220108

Merit-based Incentive Payment System (MIPS)

Final score

91.27 of 100Reported as group

Quality

77.51

Promoting interoperability

100

Improvement activities

40

Cost

76.72

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jlarson78662@direct.challiance.masshiway.net

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.

• Beth Israel Lahey Health Specialty Care, Inc.

  • Internal Medicine Physician
  • Gloucester, MA
  • NPI 1235147760
  Medicare reassignment Care Compare group NPD
• Bid-Milton Physician Associates Inc

  dba Beth Israel Lahey Health Urgent Care

  • Urgent Care Clinic/Center
  • Quincy, MA
  • NPI 1164060778
  Medicare reassignment Care Compare group
• 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 NPD
• Cambridge Public Health Commission

  dba Cambridge Health Alliance

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1932313228
  Medicare reassignment NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1194765438
  Medicare reassignment NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba Emergency Medicine - HMFP at BIDMC

  • Emergency Medicine Physician
  • Boston, MA
  • NPI 1316987993
  Medicare reassignment NPD
• Associated Physicians of Harvard Medical Faculty Physicians at Beth Is

  dba Associated Physicians of HMFP

  • Multi-Specialty Clinic/Center
  • Boston, MA
  • NPI 1861216038
  NPD
• Beth Israel Lahey Health Specialty Care, Inc.

  dba Lahey Institute of Urology, Beverly

  • Urology Physician
  • Burlington, MA
  • NPI 1427161660

  Surgery

  NPD
• Bid-Milton Physician Associates Inc

  • Behavior Analyst
  • Milton, MA
  • NPI 1184312738
  NPD
• Bid-Milton Physician Associates Inc

  • Multi-Specialty Clinic/Center
  • Quincy, MA
  • NPI 1710862420
  NPD
• Cambridge Public Health Commission

  dba Cambridge Health Alliance

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1487603585
  NPD
• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

  dba HMFP - Urgent Care

  • Urgent Care Clinic/Center
  • Dedham, MA
  • NPI 1538774443
  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
• Mount Auburn Hospital

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1689670259
  Care Compare affiliation
• Winchester Hospital

  • General Acute Care Hospital
  • Winchester, MA
  • NPI 1790740777
  Care Compare affiliation

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

{
    "created_epoch": "1276819200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1608422400000",
    "number": "1821319393",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1493 CAMBRIDGE ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021391099",
            "telephone_number": "617-665-1000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1493 CAMBRIDGE ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021391099",
            "telephone_number": "617-665-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSON",
        "first_name": "JUSTIN",
        "middle_name": "DAVID",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-06-18",
        "last_updated": "2020-12-20",
        "certification_date": "2020-12-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MA",
            "license": "266658",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Andrea Spink Lapomardo, PSY.D.
• Ellen Lapowsky, CNM
• Laptis, Inc.
• Johnathan Larkey
• Tory Leif Larsen, APRN, NP
• Christer B Larsson, PSYD
• Marie Lucie Lartigue
• Tanya Lashley, RN
• Michael L Lass, LICSW
• Cheryll A Last, RN

• Emergency Medicine Physician in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Emergency Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 20, 2020; 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.