NPIMap

Individual provider Active NPI

John P Hammerstein, M.D.

  • Orthopaedic Surgery Physician
  • Linton, IN
National Provider Identifier
1265573307
Registry record updated May 5, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
01065333A Issued in IN
Practice address
1043 N 1000 W
Linton, IN 47441
Phone
(812) 847-3381
NPI assigned
Feb 10, 2007
Last updated
May 5, 2023By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 5, 2023

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 01065333A IN Primary
Orthopaedic Surgery of the Spine Physician 207XS0117X 01065333A IN
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X 01065333A IN

Addresses

Primary practice location

1043 N 1000 W
Linton, IN 47441

Mailing address

1043 N 1000 W
Linton, IN 47441-5281
Phone (812) 847-3381

Other identifiers 1

IdentifierTypeStateIssuer
200906320MedicaidIN

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address john.hammerstein.2@17971.direct.athenahealth.com Direct

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20080804000100 IN Practitioner - Orthopedic SurgeryPractitioner - Sports Medicine 5193821056 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic SurgeryAlso: Sports Medicine
Education
Indiana University School of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Greene County General HospitalGroup PAC ID 2961481544, 102 clinicians

Practice addresses (Care Compare)

1185 N 1000
Linton, IN 47441-5282
Phone 81284722812054

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
75.93 of 100Reported as individual
Quality
75.32
Promoting interoperability
65
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)12

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Greene County General Hospital Current Accepting new patients
Greene County General Hospital Orthopaedic Surgery CurrentSince Mar 30, 2019 Accepting new patients
Gibson Community Hospital Association Past Accepting new patients
Lima Memorial Joint Operating Company Past Accepting new patients
St. Vincent Medical Group, Inc. Past Accepting new patients
Greene County General Hospital Past Accepting new patients

Locations

1043 N 1000 W
Linton, IN 47441
Phone (812) 847-3381

1185 N 1000 W
Linton, IN 47441
Phone (812) 847-2281

1206 N 1000 W
Ste B
Linton, IN 47441
Phone (812) 847-3381

Interoperability endpoints

  • Direct secure messaging: john.hammerstein.1@17971.direct.athenahealth.com
  • Direct secure messaging: john.hammerstein.2@17971.direct.athenahealth.com

Organizations & group practices 6

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.

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": "1171065600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1683244800000",
    "number": "1265573307",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1043 N 1000 W",
            "city": "LINTON",
            "state": "IN",
            "postal_code": "474415281",
            "telephone_number": "812-847-3381"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1043 N 1000 W",
            "city": "LINTON",
            "state": "IN",
            "postal_code": "47441",
            "telephone_number": "812-847-3381"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMMERSTEIN",
        "first_name": "JOHN",
        "middle_name": "P",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-10",
        "last_updated": "2023-05-05",
        "certification_date": "2023-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "IN",
            "license": "01065333A",
            "primary": true
        },
        {
            "code": "207XS0117X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Surgery of the Spine",
            "state": "IN",
            "license": "01065333A",
            "primary": false
        },
        {
            "code": "207XX0005X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Sports Medicine",
            "state": "IN",
            "license": "01065333A",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200906320",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "john.hammerstein.2@17971.direct.athenahealth.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1043 N 1000 W",
            "city": "Linton",
            "state": "IN",
            "country_code": "US",
            "postal_code": "47441",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Linton, IN

Sources for this page

Verify at the official NPI Registry.