NPIMap

Individual provider Active NPI

Gregory P Leather, M.D.

  • Orthopaedic Surgery Physician
  • Keene, NH
National Provider Identifier
1285676700
Registry record updated Mar 7, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
17267 Issued in NH
Practice address
590 Court St
Dartmouth Hitchcock - Orthopaedics
Keene, NH 03431-1719
Phone
(603) 354-5400
NPI assigned
Jun 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 7, 2017

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 012947 ME
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X 012947 ME
Orthopaedic Surgery Physician 207X00000X 17267 NH Primary

Addresses

Primary practice location

590 Court St
Dartmouth Hitchcock - Orthopaedics
Keene, NH 03431-1719

Mailing address

590 Court St
Dartmouth Hitchcock - Orthopaedics
Keene, NH 03431-1719
Phone (603) 354-5400

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME, NH2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20040915001177 ME Practitioner - Orthopedic Surgery 3971570102 Reassigns benefits to 1 organization
I20151104002737 NH Practitioner - Orthopedic Surgery 3971570102 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Albany Medical College of Union University, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Cheshire Medical CenterGroup PAC ID 1456260165, 165 clinicians
Dartmouth-Hitchcock ClinicGroup PAC ID 4183537509, shared by 2 NPIs, 1,445 clinicians

Practice addresses (Care Compare)

580 Court St
Keene, NH 03431-1718
Phone (603) 354-5454

590 Court St
Keene, NH 03431-1719
Phone (603) 354-5400

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.26 of 100Reported as group
Quality
75.44
Promoting interoperability
100
Improvement activities
40
Cost
72.09

Merit-based Incentive Payment System (MIPS)

Final score
79.66 of 100Reported as apm
Quality
53.51
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Knee replacement1-10
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10
Upper limb (arm) arthroscopy (minimally invasive joint repair)16
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
17267NHMDOrthopaedic Surgery Physician
012947MEMDSports Medicine (Orthopaedic Surgery) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mary Hitchcock Memorial Hospital CurrentSince Sep 8, 2025 Accepting new patients
Mary Hitchcock Memorial Hospital CurrentSince Jan 1, 2019 Accepting new patients
Dartmouth-Hitchcock Clinic CurrentSince Sep 14, 2015 Accepting new patients
Cheshire Medical Center CurrentSince Jan 1, 2019 Accepting new patients
Mary Hitchcock Memorial Hospital CurrentSince Sep 8, 2025 Accepting new patients
Cheshire Medical Center Current Accepting new patients
Mary Hitchcock Memorial Hospital Current Accepting new patients
Dartmouth-Hitchcock Clinic Orthopaedic Surgery CurrentSince Sep 14, 2015 Accepting new patients
Penobscot Bay Physicians & Associates CurrentSince Jun 4, 2006 Accepting new patients

Locations

4 Glen Cove Dr
Ste 202
Rockport, ME 04856
Phone (207) 593-5800

3 Glen Cove Dr
#1
Rockport, ME 04856
Phone (207) 301-8900

3 Glen Cove Dr
#3
Rockport, ME 04856
Phone (207) 301-5400

4 Glen Cove Dr
Ste 206
Rockport, ME 04856
Phone (207) 593-5454

253 Pleasant St
Concord, NH 03301
Phone (603) 226-2200

580 Court St
Keene, NH 03431
Phone (603) 354-5454

590 Court St
Keene, NH 03431
Phone (603) 354-5454

1 Medical Dr
Lebanon, NH 03756
Phone (603) 650-5922

Interoperability endpoints

  • Direct secure messaging: gleather188142@direct.dartmouth-hitchcock.org

Organizations & group practices 9

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 5

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": "1149984000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1488844800000",
    "number": "1285676700",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "590 COURT ST",
            "address_2": "DARTMOUTH HITCHCOCK - ORTHOPAEDICS",
            "city": "KEENE",
            "state": "NH",
            "postal_code": "034311719",
            "telephone_number": "603-354-5400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "590 COURT ST",
            "address_2": "DARTMOUTH HITCHCOCK - ORTHOPAEDICS",
            "city": "KEENE",
            "state": "NH",
            "postal_code": "034311719",
            "telephone_number": "603-354-5400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEATHER",
        "first_name": "GREGORY",
        "middle_name": "P",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-11",
        "last_updated": "2017-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "ME",
            "license": "012947",
            "primary": false
        },
        {
            "code": "207XX0005X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Sports Medicine",
            "state": "ME",
            "license": "012947",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "NH",
            "license": "17267",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Keene, NH

Sources for this page

Verify at the official NPI Registry.