NPIMap

Organization Active NPI

Duncan a Friedman MD PA

  • Retina Specialist (Ophthalmology) Physician
  • San Antonio, TX
National Provider Identifier
1306348032
Registry record updated May 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Retina Specialist (Ophthalmology) PhysicianTaxonomy code 207WX0107X
License
P5275 Issued in TX
Legal business name
DUNCAN A FRIEDMAN MD PA
Practice address
622 Isom Rd
San Antonio, TX 78216-4464
Phone
(210) 880-3000
Fax
(210) 227-6056
NPI assigned
Mar 8, 2018
Organization subpart
No

NPPES NPI Registry

Updated by the provider on May 1, 2026

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

Authorized official

Name
Dr. Duncan Aesctun Friedman, MDNPI 1457512725
Title
Administrator
Phone
(210) 880-3000

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207W00000X P5275 TX
Retina Specialist (Ophthalmology) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207WX0107X P5275 TX Primary

Addresses

Primary practice location

622 Isom Rd
San Antonio, TX 78216-4464

Mailing address

622 Isom Rd
San Antonio, TX 78216-4464
Phone (210) 880-3000

Other practice location 1

931 E Main St
Uvalde, TX 78801-4855
Phone (210) 880-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20181008001719 TX Part B Supplier - Clinic/Group Practice 1658623343 Receives reassigned benefits from 1 practitioner
Practice locations: San Antonio, TX; Uvalde, TX

National Provider Directory

National Provider Directory

Locations

1100 N Main Ave
Ste 201
San Antonio, TX 78212
Phone (210) 222-2154

1742 N Loop 1604 E
Ste 117
San Antonio, TX 78232
Phone (210) 403-9050

Practitioners & affiliated clinicians

Practitioners 10

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1520467200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1777593600000",
    "number": "1306348032",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "622 ISOM RD",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782164464",
            "telephone_number": "210-880-3000",
            "fax_number": "210-227-6056"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "622 ISOM RD",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782164464",
            "telephone_number": "210-880-3000",
            "fax_number": "210-227-6056"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "931 E Main St",
            "address_purpose": "LOCATION",
            "city": "Uvalde",
            "state": "TX",
            "postal_code": "788014855",
            "country_code": "US",
            "telephone_number": "210-880-3000",
            "fax_number": "210-227-6056",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "DUNCAN A FRIEDMAN MD PA",
        "organizational_subpart": "NO",
        "enumeration_date": "2018-03-08",
        "last_updated": "2026-05-01",
        "certification_date": "2026-05-01",
        "status": "A",
        "authorized_official_last_name": "FRIEDMAN",
        "authorized_official_first_name": "DUNCAN",
        "authorized_official_middle_name": "AESCTUN",
        "authorized_official_title_or_position": "ADMINISTRATOR",
        "authorized_official_telephone_number": "210-880-3000",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Ophthalmology",
            "state": "TX",
            "license": "P5275",
            "primary": false
        },
        {
            "code": "207WX0107X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Ophthalmology, Retina Specialist",
            "state": "TX",
            "license": "P5275",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.