Douglas Retzer, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

R028354 Issued in SD

Practice address

216 Anamaria Dr
Rapid City, SD 57701-7366

Phone

(605) 721-0337

Fax

(605) 721-0043

NPI assigned

Sep 12, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in SD

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Black Hills Regional Eye Surgery Center LLCGroup PAC ID 7113909201, 7 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

80.91 of 100Reported as group

Quality

61.83

Improvement activities

40

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.

• Black Hills Regional Eye Surgery Center, LLC

  • Certified Registered Nurse Anesthetist
  • Rapid City, SD
  • NPI 1174654081

  Nurse Anesthetist, Certified Registered

  Medicare reassignment Care Compare group NPD
• Black Hills Surgical Hospital, LLC

  • Special Hospital
  • Rapid City, SD
  • NPI 1376896621
  Medicare reassignment NPD
• Black Hills Surgical Hospital, LLC

  • Urgent Care Clinic/Center
  • Rapid City, SD
  • NPI 1336009646
  Medicare reassignment
• Black Hills Regional Eye Surgery Center, LLC

  • Ambulatory Surgical Clinic/Center
  • Rapid City, SD
  • NPI 1346220183
  NPD
• Black Hills Surgical Hospital, LLC

  • Anesthesiology Physician
  • Rapid City, SD
  • NPI 1972630275
  NPD
• Black Hills Surgical Hospital, LLP

  • Surgery Physician
  • Rapid City, SD
  • NPI 1417304924
  NPD (past)

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

{
    "created_epoch": "1126483200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1376537803",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13963 NECK YOKE RD",
            "city": "RAPID CITY",
            "state": "SD",
            "postal_code": "577027314",
            "telephone_number": "605-343-9885"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "216 ANAMARIA DR",
            "city": "RAPID CITY",
            "state": "SD",
            "postal_code": "577017366",
            "telephone_number": "605-721-0337",
            "fax_number": "605-721-0043"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RETZER",
        "first_name": "DOUGLAS",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-12",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "SD",
            "license": "R028354",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "5752503",
            "state": "SD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Cassandra Rengifo
• Richard Pierce Renka, MD
• Abigail Renn, RD LN
• Resiliency Project
• Julia Angelic Ressl, RN
• Erin Retzer, CRNA
• Rex Briggs MSW Inc
• Jorge Ramiro Reyno, MD
• Charles Jeffrey Rezabek, DO
• Paul M Rezich, DDS

• Certified Registered Nurse Anesthetist in Rapid City, SD
• Providers in Rapid City, SD by specialty
• Certified Registered Nurse Anesthetist in South Dakota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.