Individual provider Active NPI

Ruth A. Ross-McCormack, MD

  • Gastroenterology Physician
  • Arlington, MA
National Provider Identifier
1295835833
Registry record updated Oct 30, 2012
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
77649 Issued in MA
Practice address
37 Broadway
Lahey Arlington
Arlington, MA 02474-5552
Phone
(781) 641-0100
Fax
(781) 744-7132
NPI assigned
Sep 24, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 30, 2012

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 77649 MA Primary

Addresses

Primary practice location

37 Broadway
Lahey Arlington
Arlington, MA 02474-5552

Mailing address

Lahey Clinic
41 Mall Road
Burlington, MA 01805-0001
Phone (781) 764-1010

Other identifiers 1

IdentifierTypeStateIssuer
3141161MedicaidMA

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20050517000131 MA Practitioner - Internal MedicinePractitioner - Gastroenterology 0749221174 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Gastroenterology
Education
Wake Forest University School of Medicine, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Beth Israel Lahey Health Primary Care, IncGroup PAC ID 7719291434, 351 clinicians
Lahey Clinic IncGroup PAC ID 2264336528, shared by 3 NPIs, 1,381 clinicians

Practice addresses (Care Compare)

15 Railroad Ave
South Hamilton, MA 01982-2218
Phone (978) 468-7381

29 Mall Rd
Burlington, MA 01805-0001

37 Broadway
Arlington, MA 02474-5552
Phone (781) 641-0100

41 Mall Rd
Burlington, MA 01805-0001

Hospital & facility affiliations

  • Lahey Hospital & Medical Center, Burlington Hospital, Burlington, MA, CCN 220171
  • Winchester Hospital Hospital, Winchester, MA, CCN 220105

Merit-based Incentive Payment System (MIPS)

Final score
91.98 of 100Reported as apm
Quality
76.59
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy29
Upper gastrointestinal (GI) endoscopy for acid reflux31

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Beth Israel Lahey Health Primary Care, Inc. CurrentSince Sep 1, 2025 Accepting new patients
Lahey Clinic, Inc. CurrentSince May 15, 1995 Accepting new patients
Lahey Clinic, Inc CurrentSince May 15, 1995 Accepting new patients
Beth Israel Lahey Health Primary Care Inc CurrentSince Sep 1, 2025 Accepting new patients
Beth Israel Lahey Health Primary Care, Inc. Past Accepting new patients

Locations

37 Broadway
Arlington, MA 02474
Phone (781) 641-0100

20 Wall St
Burlington, MA 01803
Phone (781) 221-2500

41 Mall Rd
Burlington, MA 01805
Phone (781) 744-8400

1 Essex Dr
Peabody, MA 01960
Phone (978) 538-4000

15 Railroad Ave
South Hamilton, MA 01982
Phone (978) 468-7381

Interoperability endpoints

  • Direct secure messaging: rrossmccormack9739@direct.bilh.masshiway.net
  • FHIR API: https://fhir.laheyhealth.org/proxy-prd-fhir/api/FHIR/R4/
  • FHIR API: https://api.platform.athenahealth.com/10729/brand/1/csg/1/fhir/r4

Organizations & group practices 5

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1159056000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1351555200000",
    "number": "1295835833",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "LAHEY CLINIC",
            "address_2": "41 MALL ROAD",
            "city": "BURLINGTON",
            "state": "MA",
            "postal_code": "018050001",
            "telephone_number": "781-764-1010",
            "fax_number": "781-744-7132"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "37 BROADWAY",
            "address_2": "LAHEY ARLINGTON",
            "city": "ARLINGTON",
            "state": "MA",
            "postal_code": "024745552",
            "telephone_number": "781-641-0100",
            "fax_number": "781-744-7132"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROSS-MCCORMACK",
        "first_name": "RUTH",
        "middle_name": "A.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-09-24",
        "last_updated": "2012-10-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MA",
            "license": "77649",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3141161",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Arlington, MA

Sources for this page

Verify at the official NPI Registry.