NPIMap

Individual provider Active NPI

Matthew Justin Orenstein, PA

  • Physician Assistant
  • Knoxville, TN
National Provider Identifier
1396497442
Registry record updated Jun 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
4957 Issued in TN
Practice address
9015 Ten Mile Rd Apt 149
Knoxville, TN 37923-3827
Phone
(605) 209-7246
NPI assigned
Jan 20, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Physician Assistant 363AS0400X 4957 TN
Physician Assistant 363A00000X 4957 TN Primary

Addresses

Primary practice location

9015 Ten Mile Rd Apt 149
Knoxville, TN 37923-3827

Mailing address

9015 Ten Mile Rd Apt 149
Knoxville, TN 37923-3827
Phone (605) 209-7246

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in SD
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
I20250728001262 SD Practitioner - Physician Assistant 2264813864 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1303 N Lacrosse St
Rapid City, SD 57701-6956
Phone (605) 755-6600

2116 Jackson Blvd
Rapid City, SD 57702-3495
Phone (605) 755-3900

2526 Elderberry Blvd
Rapid City, SD 57703-6589
Phone (605) 755-2273

353 Fairmont Blvd
Rapid City, SD 57701-7375
Phone (605) 755-8109

375 Berky Dr
Box Elder, SD 57719-8060
Phone (605) 755-2273

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
85.88 of 100Reported as group
Quality
81.99
Promoting interoperability
100
Improvement activities
40
Cost
70.94

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
4957TNMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Monument Health Rapid City Hospital Inc CurrentSince May 13, 2025 Accepting new patients
Monument Health Rapid City Hospital Inc CurrentSince May 13, 2025 Accepting new patients
Orthotennessee, PC Past Accepting new patients
Monument Health Rapid City Hospital, Inc. PastSince Jan 1, 2022 Accepting new patients

Locations

375 Berky Dr
Box Elder, SD 57719

2116 Jackson Blvd
Rapid City, SD 57702
Phone (605) 755-3300

353 Fairmont Blvd
Rapid City, SD 57701
Phone (605) 719-1000

1303 N Lacrosse St
Rapid City, SD 57701
Phone (605) 755-6600

2526 Elderberry Blvd
Rapid City, SD 57703

Interoperability endpoints

  • Direct secure messaging: matthew.orenstein.p1@direct.orthotn.nextgenshare.com

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 12

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": "1642636800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749600000000",
    "number": "1396497442",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9015 TEN MILE RD APT 149",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379233827",
            "telephone_number": "605-209-7246"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9015 TEN MILE RD APT 149",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379233827",
            "telephone_number": "605-209-7246"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ORENSTEIN",
        "first_name": "MATTHEW",
        "middle_name": "JUSTIN",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-01-20",
        "last_updated": "2025-06-11",
        "certification_date": "2025-06-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "TN",
            "license": "4957",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "TN",
            "license": "4957",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Knoxville, TN

Sources for this page

Verify at the official NPI Registry.