Individual provider Active NPI

Marc Thomas Johannsen, D.O.

  • Diagnostic Radiology Physician
  • Portsmouth, VA
National Provider Identifier
1538329644
Registry record updated Mar 28, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
OS15809 Issued in FL
Practice address
620 John Paul Jones Cir
Portsmouth, VA 23708-2111
Phone
(757) 953-5000
NPI assigned
Jun 11, 2008
Last updated
Mar 28, 2023By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 28, 2023

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X OS15809 FL Primary

Addresses

Primary practice location

620 John Paul Jones Cir
Portsmouth, VA 23708-2111

Mailing address

1520 Vineland Cir
Unit B
Fleming Island, FL 32003-3298
Phone (757) 390-1319

Other practice location 1

52 W Underwood St
Orlando, FL 32806-1110
Phone (321) 842-8475

Other identifiers 4

IdentifierTypeStateIssuer
CEFLHOtherFLBCBS
PS103OtherFLMEDICARE PTAN OHMG
113776200MedicaidFL
PB211OtherFLMEDICARE PTAN OHRI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in FL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190116001698 FL Practitioner - Diagnostic Radiology 3072751403 Reassigns benefits to 9 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Philadelphia College of Osteopathic Medicine, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Radiology Imaging Associates LLCGroup PAC ID 2466342803, 182 clinicians
Orlando Health Medical Group IncGroup PAC ID 9537059084, 2,171 clinicians
Inverness Medical Imaging LLCGroup PAC ID 3870590672, 83 clinicians
East Central Florida Outpatient Imaging LLCGroup PAC ID 9830175199, 44 clinicians
Ocala Health Imaging Services LLCGroup PAC ID 8224217179, 48 clinicians
Ohri LLCGroup PAC ID 4981912169, 130 clinicians

Practice addresses (Care Compare)

101 Health Park Blvd
St Augustine, FL 32086-5777
Phone (904) 819-4707

1041 Dunlawon Ave
Port Orange, FL 32127-7968
Phone (386) 274-7118

1414 Kuhl Ave
Orlando, FL 32806-2008
Phone (407) 841-5111

1752 Eagle Watch Dr
Fleming Island, FL 32003-8640
Phone (352) 671-4300

2300 SE 17TH St
Suite 800
Ocala, FL 34471-9142
Phone (352) 690-8403

303 N Clyde Morris Blvd
Daytona BCH, FL 32114-2709
Phone (386) 274-7118

398 E Altamonte Dr
Altamonte Springs, FL 32701-4402
Phone (407) 331-9355

400 Health Park Blvd
St Augustine, FL 32086-5784
Phone (904) 819-5155

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
79.91 of 100Reported as group
Quality
61.18
Promoting interoperability
100
Improvement activities
40
Cost
71.86

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
OS15809FLMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Ocala Health Imaging Services LLC Single Specialty CurrentSince Aug 12, 2025 Accepting new patients
Radiology Imaging Associates, LLC Single Specialty CurrentSince Sep 1, 2025 Accepting new patients
Ohri, LLC CurrentSince Feb 12, 2022 Accepting new patients
Inverness Medical Imaging LLC Single Specialty CurrentSince Sep 1, 2025 Accepting new patients
East Central Florida Outpatient Imaging LLC Single Specialty CurrentSince Sep 1, 2025 Accepting new patients
Orlando Health Medical Group Inc CurrentSince Oct 1, 2022 Accepting new patients
Ohi West Medical Group, LLC Diagnostic Radiology CurrentSince Nov 2, 2023 Accepting new patients
Ohri, LLC Single Specialty Current Accepting new patients
Ohri, LLC Single Specialty CurrentSince Feb 12, 2022 Accepting new patients
Singleton Associates PA Single Specialty CurrentSince May 15, 2024 Accepting new patients
St Thomas Radiology Associates LLC Single Specialty CurrentSince Sep 1, 2025 Accepting new patients
Orlando Health Medical Group Inc Single Specialty CurrentSince Oct 1, 2022 Accepting new patients
Timberridge Imaging Center Single Specialty CurrentSince Sep 1, 2025 Accepting new patients
Medical Imaging Center of Ocala LLP Single Specialty CurrentSince Sep 1, 2025 Accepting new patients
Medical Imaging Center of Ocala LLP Single Specialty PastSince Feb 11, 2024 Accepting new patients
East Central Florida Outpatient Imaging, LLC Single Specialty Past Accepting new patients
East Central Florida Outpatient Imaging LLC Single Specialty Past Accepting new patients
St. Thomas Radiology Associates, LLC Single Specialty Past Accepting new patients

Locations

398 E Altamonte Dr
Altamonte Springs, FL 32701
Phone (407) 331-3955

1890 Lpga Blvd
Ste 110
Daytona Beach, FL 32117
Phone (386) 274-5454

2105 Highway 44 W
Inverness, FL 34453
Phone (352) 419-4818

4211 Van Dyke Rd
Lutz, FL 33558
Phone (813) 443-2010

1490 SE Magnolia Ext
Ocala, FL 34471
Phone (352) 512-9703

1500 SW 1st Ave
Ocala, FL 34471
Phone (352) 351-7500

1901 SE 18th Ave
Ste 200A
Ocala, FL 34471
Phone (352) 671-4252

2300 SE 17th St
Bldg 700
Ocala, FL 34471

2300 SE 17th St
Ste 800
Ocala, FL 34471
Phone (352) 690-8403

9521 SW Highway 200
Ocala, FL 34481
Phone (352) 351-7500

1414 Kuhl Ave
Orlando, FL 32806
Phone (407) 464-9516

20 W Kaley St
Orlando, FL 32806
Phone (407) 423-2581

32 W Gore St
Orlando, FL 32806
Phone (321) 841-3820

52 Underwood St
Orlando, FL 32806
Phone (321) 841-3581

9400 Turkey Lake Rd
Orlando, FL 32819
Phone (321) 843-5500

9400 Turkey Lake Rd
#P
Orlando, FL 32819
Phone (407) 351-8519

3202 N Park Rd
Plant City, FL 33563
Phone (813) 757-1200

1041 Dunlawton Ave
Pt Orange, FL 32127
Phone (386) 322-4700

6901 Simmons Loop
Riverview, FL 33578
Phone (813) 302-8000

3001 W Mlk Blvd
Tampa, FL 33607
Phone (813) 361-6778

3030 W Mlk Blvd
Tampa, FL 33607
Phone (813) 870-4000

9048 Sugar Est
St Thomas, VI 00802
Phone (340) 693-6211

Networks

  • Optimum HealthCare HMO Network
  • Freedom Health HMO Network

Organizations & group practices 18

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

View all 18

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1213142400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1679961600000",
    "number": "1538329644",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1520 VINELAND CIR",
            "address_2": "UNIT B",
            "city": "FLEMING ISLAND",
            "state": "FL",
            "postal_code": "320033298",
            "telephone_number": "757-390-1319",
            "fax_number": "855-673-9190"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "620 JOHN PAUL JONES CIR",
            "city": "PORTSMOUTH",
            "state": "VA",
            "postal_code": "237082111",
            "telephone_number": "757-953-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "52 W Underwood St",
            "address_purpose": "LOCATION",
            "city": "Orlando",
            "state": "FL",
            "postal_code": "328061110",
            "country_code": "US",
            "telephone_number": "321-842-8475",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JOHANNSEN",
        "first_name": "MARC",
        "middle_name": "THOMAS",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-06-11",
        "last_updated": "2023-03-28",
        "certification_date": "2023-03-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "FL",
            "license": "OS15809",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "CEFLH",
            "state": "FL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN OHMG",
            "identifier": "PS103",
            "state": "FL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "113776200",
            "state": "FL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN OHRI",
            "identifier": "PB211",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Portsmouth, VA

Sources for this page

Verify at the official NPI Registry.