Individual provider Active NPI

Carolyn M. Lonser, MD

  • Obstetrics & Gynecology Physician
  • Columbus, OH
National Provider Identifier
1730138306
Registry record updated Apr 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
35.122829 Issued in OH
Practice address
1800 Zollinger Rd
Columbus, OH 43221-2849
Phone
(614) 293-2076
Fax
(614) 366-0094
NPI assigned
May 9, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 8, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X 35.122829 OH Primary

Addresses

Primary practice location

1800 Zollinger Rd
Columbus, OH 43221-2849

Mailing address

700 Ackerman Rd Ste 2120
Columbus, OH 43202-1559
Phone (614) 293-2076

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address clonser242294@direct.osumc.edu

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH
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
I20140318000578 OH Practitioner - Obstetrics/Gynecology 0446249726 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Loma Linda University School of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Osu General Internal Medicine LLCGroup PAC ID 7517103955, 270 clinicians

Practice addresses (Care Compare)

1800 Zollinger Rd
Columbus, OH 43221-2849
Phone (614) 293-7417

2050 Kenny Rd
Columbus, OH 43221-3502
Phone (614) 293-8054

Hospital & facility affiliations

  • James Cancer Hospital & Solove Research Institute Hospital, Columbus, OH, CCN 360242
  • Ohio State University State Health System Hospital, Columbus, OH, CCN 360085

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
35.122829OHMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Osu General Internal Medicine LLC CurrentSince Jul 1, 2022 Accepting new patients
University of Utah Hospitals and Clinics Obstetrics & Gynecology Past Accepting new patients
Lima Memorial Joint Operating Company Past Accepting new patients

Locations

2050 Kenny Rd
Columbus, OH 43221
Phone (614) 293-8054

700 Ackerman Rd
Ste 2120
Columbus, OH 43202

700 Ackerman Rd
Ste 570
Columbus, OH 43202
Phone (614) 293-2046

1581 Dodd Dr
Fl 3
Columbus, OH 43210
Phone (614) 688-4048

2231 N High St
Columbus, OH 43201
Phone (614) 293-2700

543 Taylor Ave
Fl 2
Columbus, OH 43203
Phone (614) 293-2700

1800 Zollinger Rd
Upper Arlington, OH 43221
Phone (614) 293-2130

1800 Zollinger Rd
Fl 5
Upper Arlington, OH 43221
Phone (614) 293-2700

Interoperability endpoints

  • Direct secure messaging: clonser242294@direct.osumc.edu

Organizations & group practices 3

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.

Hospital & facility affiliations 4

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": "1147132800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1730138306",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "700 ACKERMAN RD STE 2120",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432021559",
            "telephone_number": "614-293-2076",
            "fax_number": "614-366-0094"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1800 ZOLLINGER RD",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432212849",
            "telephone_number": "614-293-2076",
            "fax_number": "614-366-0094"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LONSER",
        "first_name": "CAROLYN",
        "middle_name": "M.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-09",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "OH",
            "license": "35.122829",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "clonser242294@direct.osumc.edu",
            "affiliation": "N",
            "address_1": "1800 Zollinger Rd Fl 5",
            "city": "Columbus",
            "state": "OH",
            "country_code": "US",
            "postal_code": "432212800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Columbus, OH

Sources for this page

Verify at the official NPI Registry.