Mark A Marieb, M.D.

Primary specialty

Clinical Cardiac Electrophysiology PhysicianTaxonomy code 207RC0001X

License

2022-00622 Issued in NC

Practice address

3521 Graystone PL SE Ste 202
Conover, NC 28613-8269

Phone

(828) 732-5700

NPI assigned

Jun 23, 2005

Last updated

Feb 17, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in CT, NC2 enrollments

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 2

Specialty

Cardiac ElectrophysiologyAlso: Cardiovascular Disease (Cardiology)

Education

Boston University School of Medicine, 1984

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Griffin Faculty Physicians IncGroup PAC ID 7618871997, 125 clinicians

Catawba Valley Medical Group IncGroup PAC ID 6305007279, 133 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Griffin Hospital Hospital, Derby, CT, CCN 070031
• Catawba Valley Medical Center Hospital, Hickory, NC, CCN 340143
• St Vincent's Medical Center Hospital, Bridgeport, CT, CCN 070028
• Waterbury Hospital Hospital, Waterbury, CT, CCN 070005
• Yale-New Haven Hospital Hospital, New Haven, CT, CCN 070022

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mark.marieb.1@1323.direct.athenahealth.com
• Direct secure messaging: mmarieb8591@direct.ynhh.org

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.

• Griffin Faculty Physicians, Inc.

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Derby, CT
  • NPI 1598755605

  Cardiovascular Disease

  Medicare reassignment Care Compare group NPD
• Catawba Valley Medical Group, Inc

  dba Catawba Valley Family Care - Catawba

  • Family Medicine Physician
  • Catawba, NC
  • NPI 1790062362
  Medicare reassignment Care Compare group
• Cardiology Associates of Greater Waterbury LLC

  • Cardiovascular Disease Physician
  • Waterbury, CT
  • NPI 1407159833
  Medicare reassignment NPD
• Hartford Healthcare Medical Group Specialists, PLLC

  • Surgery Physician
  • Hartford, CT
  • NPI 1023584216

  Cardiovascular Disease

  Medicare reassignment NPD
• Hartford Healthcare Medical Group, Inc

  dba Hartford HealthCare Medical Group

  • Surgery Physician
  • Wethersfield, CT
  • NPI 1043561301
  Medicare reassignment NPD
• Prospect Waterbury, Inc.

  • General Acute Care Hospital
  • Waterbury, CT
  • NPI 1477902641
  Medicare reassignment NPD
• Catawba Valley Medical Group Inc

  dba Gastroenterology Associates of Catawba Valley-A

  • Ambulatory Surgical Clinic/Center
  • Hickory, NC
  • NPI 1659267359
  NPD
• Catawba Valley Medical Group, Inc

  dba Catawba Valley Cardiology

  • Cardiovascular Disease Physician
  • Conover, NC
  • NPI 1750659488
  NPD
• Hartford Healthcare Medical Group Specialists LLC

  • Customized Equipment (DME)
  • Groton, CT
  • NPI 1295367068
  NPD
• Arrhythmia Center of Connecticut PC

  • Cardiovascular Disease Physician
  • New Haven, CT
  • NPI 1790893709
  NPD (past)
• The Griffin Hospital

  • General Acute Care Hospital
  • Derby, CT
  • NPI 1184639973
  NPD (past)

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

• Catawba Valley Medical Center

  • General Acute Care Hospital
  • Hickory, NC
  • NPI 1164495255
  Care Compare affiliation
• Prospect Waterbury, Inc.

  • General Acute Care Hospital
  • Waterbury, CT
  • NPI 1477902641
  Care Compare affiliation
• SVMC Holdings, Inc

  • General Acute Care Hospital
  • Bridgeport, CT
  • NPI 1942224696
  Care Compare affiliation
• The Griffin Hospital

  • General Acute Care Hospital
  • Derby, CT
  • NPI 1184639973
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1336139500
  Care Compare affiliation
• Yale New Haven Hospital

  • General Acute Care Hospital
  • New Haven, CT
  • NPI 1578778726
  Care Compare affiliation

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

{
    "created_epoch": "1119484800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771286400000",
    "number": "1508862632",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "810 FAIRGROVE CHURCH RD",
            "city": "HICKORY",
            "state": "NC",
            "postal_code": "286029617"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3521 GRAYSTONE PL SE STE 202",
            "city": "CONOVER",
            "state": "NC",
            "postal_code": "286138269",
            "telephone_number": "828-732-5700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARIEB",
        "first_name": "MARK",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-23",
        "last_updated": "2026-02-17",
        "certification_date": "2026-02-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NC",
            "license": "2022-00622",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CT",
            "license": "28115",
            "primary": false
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "CT",
            "license": "028115",
            "primary": false
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "NC",
            "license": "2022-00622",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tommy Ly, PHARMD
• Glenn B Lyda, CPO
• Tynecca Gail Lynch, LCSW
• Girish N Makwana, M.D.
• Alyssa Ann Mallard, DNP/FNP
• Larissa Mastro, DDS
• Jessica Mateyunas
• Maxim Habilitation Services, LLC
• Jennifer McCandless, PHARMD
• Sloan Andrew Meadows, DDS

• Clinical Cardiac Electrophysiology Physician in Conover, NC
• Providers in Conover, NC by specialty
• Clinical Cardiac Electrophysiology Physician in North Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.