Michael Bert Oppen, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

1029036 Issued in TX

Practice address

4502 Medical Dr
San Antonio, TX 78229-4402

Phone

(210) 358-4000

Fax

(210) 358-4775

NPI assigned

Jan 11, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Community Medicine AssociatesGroup PAC ID 7719979509, 590 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University Health System Hospital, San Antonio, TX, CCN 450213

Merit-based Incentive Payment System (MIPS)

Final score

96.65 of 100Reported as group

Quality

83.62

Promoting interoperability

100

Improvement activities

40

Cost

78.03

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations

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.

• Community Medicine Associates

  dba University Medicine Associates

  • Family Medicine Physician
  • San Antonio, TX
  • NPI 1245313329
  Medicare reassignment Care Compare group NPD
• Northstar Anesthesia III PA

  • Anesthesiology Physician
  • Corpus Christi, TX
  • NPI 1356968952

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Northstar Anesthesia, PA

  • Anesthesiology Physician
  • Arlington, TX
  • NPI 1912978610

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Bexar County Hospital District

  dba University Health

  • General Acute Care Hospital
  • San Antonio, TX
  • NPI 1821011248
  Care Compare affiliation

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

{
    "created_epoch": "1610323200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788912000000",
    "number": "1346839826",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "903 W MARTIN ST # MS 49-2",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782070903",
            "telephone_number": "201-358-0572",
            "fax_number": "210-358-5940"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000",
            "fax_number": "210-358-4775"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8300 Floyd Curl Dr",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782293931",
            "country_code": "US",
            "telephone_number": "210-450-9000",
            "fax_number": "210-644-9307",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6225 N State Highway 161 Ste 200",
            "address_purpose": "LOCATION",
            "city": "Irving",
            "state": "TX",
            "postal_code": "750382241",
            "country_code": "US",
            "telephone_number": "214-687-0001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OPPEN",
        "first_name": "MICHAEL",
        "middle_name": "BERT",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-01-11",
        "last_updated": "2026-09-09",
        "certification_date": "2026-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WG0000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, General Practice",
            "state": "TX",
            "license": "813040",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "1029036",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ophthalmology Associates of San Antonio Dba I.Wear by Oasa
• Opiate Treatment Centers of America, LLC
• Marilou De Gracia Opina, DO
• Nana Adwoa Opoku-Ansah
• Hannah Oppen, FNP-C
• Opsolutions, LLC
• Stephen Michael Opter Sr., CRT
• Optical Headquarters
• Optimacare Inc
• Optimal Cares Assisted Living LLC

• Certified Registered Nurse Anesthetist in San Antonio, TX
• Providers in San Antonio, TX by specialty
• Certified Registered Nurse Anesthetist in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.