Individual provider Active NPI

Ana Maria Castaneda Guarderas, M.D.

  • Emergency Medicine Physician
  • Memphis, TN
National Provider Identifier
1194174318
Registry record updated Jan 15, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
59139 Issued in TN
Practice address
877 Jefferson Ave
Memphis, TN 38103
Phone
(901) 545-7100
Fax
(901) 545-8996
NPI assigned
Jun 8, 2016
Last updated
Jan 15, 2020By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 15, 2020

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 23751 FL
Emergency Medicine Physician 207P00000X 59139 TN Primary

Addresses

Primary practice location

877 Jefferson Ave
Memphis, TN 38103

Mailing address

877 Jefferson Ave
Memphis, TN 38103-2807
Phone (312) 933-0244

Other practice location 1

20900 Biscayne Blvd
GME, South Tower, Room 821
Aventura, FL 33180-1407
Phone (305) 692-3392

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN
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
I20191017000863 TN Practitioner - Emergency Medicine 9335432533 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Jefferson Ave
Attn Provider Enrollment
Memphis, TN 38103-2807

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
80.97 of 100Reported as group
Quality
64.58
Improvement activities
40
Cost
77.33

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
23751FLMDDental Hygienist
59139TNMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Methodist University Emergency Physicians PLLC Emergency Medicine CurrentSince Dec 10, 2025 Accepting new patients
Ut Regional One Physicians Inc Emergency Medicine CurrentSince Aug 28, 2019 Accepting new patients
Ut Regional One Physicians Inc CurrentSince Aug 28, 2019 Accepting new patients
Germantown Emergency Physicians, PLLC Emergency Medicine CurrentSince Dec 10, 2025 Accepting new patients
Methodist South Emergency Physicians, PLLC Emergency Medicine CurrentSince Dec 10, 2025 Accepting new patients
Methodist North Emergency Physicians, PLLC Emergency Medicine CurrentSince Dec 10, 2025 Accepting new patients

Locations

1265 Union Ave
Memphis, TN 38104
Phone (901) 516-2362

1300 Wesley Dr
Memphis, TN 38116
Phone (901) 516-3700

3960 New Covington Pike
Memphis, TN 38128
Phone (901) 516-5200

6215 Humphreys Blvd
Ste 201
Memphis, TN 38120
Phone (901) 866-8085

7691 Poplar Ave
Memphis, TN 38138
Phone (901) 516-1290

877 Jefferson Ave
Memphis, TN 38103
Phone (901) 448-5893

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 4

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": "1465344000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1579046400000",
    "number": "1194174318",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "877 JEFFERSON AVE",
            "city": "MEMPHIS",
            "state": "TN",
            "postal_code": "381032807",
            "telephone_number": "312-933-0244"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "877 JEFFERSON AVE",
            "city": "MEMPHIS",
            "state": "TN",
            "postal_code": "38103",
            "telephone_number": "901-545-7100",
            "fax_number": "901-545-8996"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "20900 Biscayne Blvd",
            "address_2": "GME, South Tower, Room 821",
            "address_purpose": "LOCATION",
            "city": "Aventura",
            "state": "FL",
            "postal_code": "331801407",
            "country_code": "US",
            "telephone_number": "305-692-3392",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CASTANEDA GUARDERAS",
        "first_name": "ANA",
        "middle_name": "MARIA",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-06-08",
        "last_updated": "2020-01-15",
        "certification_date": "2020-01-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "FL",
            "license": "23751",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TN",
            "license": "59139",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Memphis, TN

Sources for this page

Verify at the official NPI Registry.