Individual provider Active NPI

Nathaniel Greenwood, D.O.

  • Emergency Medicine Physician
  • Cedar Park, TX
National Provider Identifier
1770798563
Registry record updated Mar 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
P2863 Issued in TX
Practice address
3620 E Whitestone Blvd
Cedar Park, TX 78613-7441
Phone
(512) 260-2732
NPI assigned
May 14, 2007
Last updated
Mar 25, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 25, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X OT011248 PA
Emergency Medicine Physician 207P00000X 2008 NE
Emergency Medicine Physician 207P00000X P2863 TX Primary
General Practice Physician 208D00000X 2008 NE

Addresses

Primary practice location

3620 E Whitestone Blvd
Cedar Park, TX 78613-7441

Mailing address

3620 E Whitestone Blvd
Cedar Park, TX 78613-7441
Phone (512) 260-2732

Other practice location 1

14404 Stoney Brook Blvd
Omaha, NE 68137-2613
Phone (512) 506-8503

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, NE2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20120620000141 TX Practitioner - Emergency Medicine 7719043207 Reassigns benefits to 3 organizations
I20211215001225 NE Practitioner - General PracticePractitioner - Emergency Medicine 7719043207 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General PracticeAlso: Emergency Medicine
Education
Pennsylvania State University College of Medicine, 2008
Medicare assignment
May accept Medicare assignment
Group practices
Nebraska Medical Clinics PLLCGroup PAC ID 0749763241, 3 clinicians
Brushy Creek Emergency PhysiciansGroup PAC ID 8729483854, 18 clinicians
Lake Travis Emergency Physicians PLLCGroup PAC ID 7315291929, 10 clinicians
Bandera Emergency Physicians PLLCGroup PAC ID 0345763744, 6 clinicians

Practice addresses (Care Compare)

14404 Stoney Brook Blvd
Omaha, NE 68137-2613
Phone (402) 279-1960

230 Deer Ridge Dr
Round Rock, TX 78681-5515
Phone (512) 766-1400

5012 RM 620
Austin, TX 78732-1846
Phone (512) 851-1011

8703 Bandera Rd
San Antonio, TX 78250-2504
Phone (210) 332-5460

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
OT011248PAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Brushy Creek Emergency Physicians PLLC Emergency Medicine CurrentSince May 23, 2021 Accepting new patients
Bandera Emergency Physicians, PLLC CurrentSince Jan 26, 2025 Accepting new patients
Lake Travis Emergency Physicians, PLLC Emergency Medicine CurrentSince Oct 1, 2018 Accepting new patients
Lake Travis ER, LLC Emergency Medicine Past Accepting new patients
Round Rock Outpatient Care PLLC PastSince Jul 17, 2025 Accepting new patients

Locations

1860 S Lakeline Blvd
Cedar Park, TX 78613
Phone (512) 506-8503

3620 E Whitestone Blvd
Cedar Park, TX 78613
Phone (512) 260-2732

1925 S A W Grimes Blvd
Round Rock, TX 78664
Phone (512) 260-2732

230 Deer Ridge Dr
Round Rock, TX 78681
Phone (512) 766-1400

3600 E Palm Valley Blvd
Ste 3
Round Rock, TX 78665

8703 Bandera Rd
San Antonio, TX 78250
Phone (210) 332-5460

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 1

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": "1179100800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774396800000",
    "number": "1770798563",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3620 E WHITESTONE BLVD",
            "city": "CEDAR PARK",
            "state": "TX",
            "postal_code": "786137441",
            "telephone_number": "512-260-2732"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3620 E WHITESTONE BLVD",
            "city": "CEDAR PARK",
            "state": "TX",
            "postal_code": "786137441",
            "telephone_number": "512-260-2732"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14404 Stoney Brook Blvd",
            "address_purpose": "LOCATION",
            "city": "Omaha",
            "state": "NE",
            "postal_code": "681372613",
            "country_code": "US",
            "telephone_number": "512-506-8503",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREENWOOD",
        "first_name": "NATHANIEL",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-14",
        "last_updated": "2026-03-25",
        "certification_date": "2026-03-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "PA",
            "license": "OT011248",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NE",
            "license": "2008",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "P2863",
            "primary": true
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "NE",
            "license": "2008",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Cedar Park, TX

Sources for this page

Verify at the official NPI Registry.