Individual provider Active NPI

Robert H. Mayernik, M.D.

  • Gynecology Physician
  • Frederick, MD
National Provider Identifier
1942290127
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gynecology PhysicianTaxonomy code 207VG0400X
License
D0026401 Issued in MD
Practice address
174 Thomas Johnson Dr
Suite 204
Frederick, MD 21702-4423
Phone
(301) 662-2300
Fax
(301) 662-7364
NPI assigned
Oct 27, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gynecology Physician 207VG0400X D0026401 MD Primary

Addresses

Primary practice location

174 Thomas Johnson Dr
Suite 204
Frederick, MD 21702-4423

Mailing address

7185 Stillwater CT
Frederick, MD 21702-2988
Phone (301) 662-2300

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
D0026401MDMDGynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Dr. Robert H. Mayernik, LLC Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1130371200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1942290127",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7185 STILLWATER CT",
            "city": "FREDERICK",
            "state": "MD",
            "postal_code": "217022988",
            "telephone_number": "301-662-2300",
            "fax_number": "301-662-7364"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "174 THOMAS JOHNSON DR",
            "address_2": "SUITE 204",
            "city": "FREDERICK",
            "state": "MD",
            "postal_code": "217024423",
            "telephone_number": "301-662-2300",
            "fax_number": "301-662-7364"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAYERNIK",
        "first_name": "ROBERT",
        "middle_name": "H.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-27",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VG0400X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecology",
            "state": "MD",
            "license": "D0026401",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Frederick, MD

Sources for this page

  • 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.