Mary Elizabeth Plewniak, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

APRN9400752 Issued in FL

Practice address

4500 San Pablo Rd S
Jacksonville, FL 32224-1865

Phone

(904) 953-2000

NPI assigned

Aug 4, 2017

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Mary Elizabeth Osbach Former name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in FL, AR, WA, GA4 enrollments

Enrollment records 4

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Wellstar Medical Group LLCGroup PAC ID 6709065402, 3,059 clinicians

Mayo Clinic JacksonvilleGroup PAC ID 5698689297, 1,595 clinicians

Anesthesia Dynamics LLCGroup PAC ID 3779832530, 883 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Hospital, Jacksonville, FL, CCN 100151
• Wellstar MCG Health, Affiliated With Med Col Hospital, Augusta, GA, CCN 110034

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations

Networks

• Freedom Health HMO Network

Interoperability endpoints

• Direct secure messaging: mplewniak2549811@ehrdirect.mayoclinicmsg.org

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.

• Anesthesia Dynamics LLC

  • Anesthesiology Physician
  • Bradenton, FL
  • NPI 1073001012

  Nurse Anesthetist, Certified Registered

  Medicare reassignment Care Compare group NPD
• Mayo Clinic Jacksonville

  • Multi-Specialty Clinic/Center
  • Jacksonville, FL
  • NPI 1790772317
  Medicare reassignment Care Compare group NPD
• Wellstar Medical Group, LLC

  • Family Medicine Physician
  • Kennesaw, GA
  • NPI 1558664003
  Medicare reassignment Care Compare group NPD
• Fleming Island Anesthesia LLC

  • Anesthesiology Physician
  • Orange Park, FL
  • NPI 1487945895

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Gulf-to-Bay Anesthesiology Associates LLC

  • Anesthesiology Physician
  • Tampa, FL
  • NPI 1720039746
  Medicare reassignment NPD
• Western Arkansas Anesthesiology Associates P.a.

  • Anesthesiology Physician
  • Fort Smith, AR
  • NPI 1548202294
  Medicare reassignment NPD
• Western Arkansas Obstetric Anesthesia LLC

  • Anesthesiology Physician
  • Fort Smith, AR
  • NPI 1952671703
  Medicare reassignment NPD
• Yakima Valley Memorial Physicians

  • General Acute Care Hospital
  • Yakima, WA
  • NPI 1306933940
  Medicare reassignment NPD
• Youngs Professional Services LLC

  • Certified Registered Nurse Anesthetist
  • New Iberia, LA
  • NPI 1922178599

  AR, Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Gulf-to-Bay Anesthesiology Associates LLC

  • Anesthesiology Physician
  • Largo, FL
  • NPI 1316205339
  NPD
• Mayo Clinic Jacksonville

  • Home Infusion Therapy Pharmacy
  • Jacksonville, FL
  • NPI 1003510116
  NPD
• Mayo Clinic Jacksonville

  • Health Service Clinic/Center
  • Jacksonville, FL
  • NPI 1174143986
  NPD

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

• Mayo Clinic Florida

  • General Acute Care Hospital
  • Jacksonville, FL
  • NPI 1891782470
  Care Compare affiliation
• Au Medical Center, Inc

  • General Acute Care Hospital
  • Augusta, GA
  • NPI 1437135902
  Care Compare affiliation

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

{
    "created_epoch": "1501804800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755820800000",
    "number": "1043735657",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3211 W SWANN AVE UNIT 1106",
            "city": "TAMPA",
            "state": "FL",
            "postal_code": "336095502",
            "telephone_number": "313-658-0099"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 SAN PABLO RD S",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322241865",
            "telephone_number": "904-953-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3211 W Swann Ave",
            "address_2": "Unit 1106",
            "address_purpose": "LOCATION",
            "city": "Tampa",
            "state": "FL",
            "postal_code": "33609",
            "country_code": "US",
            "telephone_number": "313-658-0099",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PLEWNIAK",
        "first_name": "MARY",
        "middle_name": "ELIZABETH",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-08-04",
        "last_updated": "2025-08-22",
        "certification_date": "2025-08-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "GA",
            "license": "GAA-CRNA001343",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "FL",
            "license": "APRN9400752",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mplewniak2549811@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "4500 San Pablo Rd S",
            "city": "Jacksonville",
            "state": "FL",
            "country_code": "US",
            "postal_code": "322241865",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "MARY",
            "last_name": "OSBACH",
            "middle_name": "ELIZABETH",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Gerhonda Wanise Plazz
• Pleasant Living Facility, Inc.
• Gabriela Maina Pleasant, NP
• Jasmine Pleasant
• Misha Pless, MD
• Aaron John Ploessl, D.C.
• Cheryl Plotkin, PA
• Leon Nicholas Plowright, MD
• PLS Therapy Services
• PLS Therapy Services

• Certified Registered Nurse Anesthetist in Jacksonville, FL
• Providers in Jacksonville, FL by specialty
• Certified Registered Nurse Anesthetist in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 22, 2025; 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.