John J Retzloff, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

28146650A Issued in IN

Practice address

500 N Nappanee St
Suite 11B
Elkhart, IN 46514-1503

Phone

(574) 522-9922

Fax

(574) 522-9926

NPI assigned

Jun 26, 2009

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 IN, MI2 enrollments

Enrollment records 2

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Centers for Pain Control, IncGroup PAC ID 7416019450, 24 clinicians

The South Bend Clinic LLCGroup PAC ID 3779577937, 171 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations (25 of 27)

Interoperability endpoints

• Direct secure messaging: john.retzloff.1@16383.direct.athenahealth.com
• FHIR API: https://epicproxy.et1296.epichosted.com/APIProxyPRD/api/FHIR/R4/

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.

• Centers for Pain Control, Inc

  • Pain Medicine Physician
  • La Porte, IN
  • NPI 1790920452
  Medicare reassignment Care Compare group NPD
• The South Bend Clinic LLC

  • Clinic/Center
  • South Bend, IN
  • NPI 1073680419
  Medicare reassignment Care Compare group NPD
• Great Lakes Anesthesia, P.C.

  • Anesthesiology Physician
  • Elkhart, IN
  • NPI 1720039977

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Iceland Anesthesia Management, LLC

  • Anesthesiology Physician
  • Terre Haute, IN
  • NPI 1912578667

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Jebs Anesthesia Consultants, LLC

  • Anesthesiology Physician
  • La Porte, IN
  • NPI 1790447761
  Medicare reassignment NPD
• La Porte County Anesthesia Associates LLC

  • Anesthesiology Physician
  • Michigan City, IN
  • NPI 1477553634
  Medicare reassignment NPD
• Sda Consultants PLLC

  • Anesthesiology Physician
  • Elkhart, IN
  • NPI 1336605500

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Ams Northern Indiana LLC

  • Anesthesiology Physician
  • Pensacola, FL
  • NPI 1427619840

  IN, Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Clinical Colleagues Inc

  • Anesthesiology Physician
  • Van Wert, OH
  • NPI 1992725766

  IN, Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Monaco Management, LLC

  • Anesthesiology Physician
  • Alma, MI
  • NPI 1568125177

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Centers for Pain Control, Inc

  • Pain Medicine Physician
  • Munster, IN
  • NPI 1609333723
  NPD
• The South Bend Clinic, LLC

  • Anesthesiology Physician
  • South Bend, IN
  • NPI 1487307492
  NPD

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

{
    "created_epoch": "1245974400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1881822039",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3055",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462063055",
            "telephone_number": "317-567-2180",
            "fax_number": "317-567-2191"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 N NAPPANEE ST",
            "address_2": "SUITE 11B",
            "city": "ELKHART",
            "state": "IN",
            "postal_code": "465141503",
            "telephone_number": "574-522-9922",
            "fax_number": "574-522-9926"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "211 N Eddy St",
            "address_purpose": "LOCATION",
            "city": "South Bend",
            "state": "IN",
            "postal_code": "466173096",
            "country_code": "US",
            "telephone_number": "574-237-9366",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RETZLOFF",
        "first_name": "JOHN",
        "middle_name": "J",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-06-26",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "IN",
            "license": "28146650A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200951450",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• David William Replogle, M.S.W.
• Cara Reschly
• David Reser, MD
• Resolution Home Care Agency,LLC
• Reta, Inc.
• Hannah Reyes
• Rocio Reyes
• Julie Ann Rheinheimer, MSN FNP
• Rebekah Rhoda
• Jamie L Rice, NP

• Certified Registered Nurse Anesthetist in Elkhart, IN
• Providers in Elkhart, IN by specialty
• Certified Registered Nurse Anesthetist in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 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.