Individual provider Active NPI

Greg A. Lillvis, AA

  • Anesthesiologist Assistant
  • Columbus, OH
National Provider Identifier
1184915894
Registry record updated Jul 14, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiologist AssistantTaxonomy code 367H00000X
License
67.000181 Issued in OH
Practice address
410 W 10TH Ave FL 1
Columbus, OH 43210-1240
Phone
(614) 293-8487
Fax
(614) 293-8153
NPI assigned
Apr 28, 2011
Last updated
Jul 14, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 14, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiologist Assistant 367H00000X 67.000181 OH Primary

Addresses

Primary practice location

410 W 10TH Ave FL 1
Columbus, OH 43210-1240

Mailing address

700 Ackerman Rd Ste 2120
Columbus, OH 43202-1559
Phone (614) 293-8487

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110728000409 OH Practitioner - Anesthesiology Assistant 1951579457 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology Assistant
Education
Other, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Osu Observation Medicine, LLCGroup PAC ID 3375692270, 423 clinicians

Practice addresses (Care Compare)

410 W 10TH Ave
Columbus, OH 43210-1240
Phone (614) 293-8487

450 W 10TH Ave
Columbus, OH 43210-1240
Phone (614) 293-8000

452 W 10TH Ave
Columbus, OH 43210-1240
Phone (614) 293-8487

460 W 10TH Ave
Columbus, OH 43210-1240
Phone (614) 293-8487

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Associate of Arts

Practice roles

OrganizationSpecialtyStatusNew patients
Osu Observation Medicine, LLC CurrentSince Jul 1, 2022 Accepting new patients
University Hospitals Medical Group Inc CurrentSince Feb 21, 2017 Accepting new patients

Locations

11100 Euclid Ave
Cleveland Heights, OH 44106

410 W 10th Ave
Columbus, OH 43210
Phone (614) 293-5905

410 W 10th Ave
#N429
Columbus, OH 43210
Phone (614) 293-4705

410 W 10th Ave
Fl 1
Columbus, OH 43210

700 Ackerman Rd
Ste 2120
Columbus, OH 43202

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

158 W Main Rd
Ste 203
Conneaut, OH 44030
Phone (440) 285-2960

20800 Harvard Rd
Fl 2
Highland Hills, OH 44122
Phone (216) 358-2156

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1303948800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752451200000",
    "number": "1184915894",
    "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": "614-293-8487"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "410 W 10TH AVE FL 1",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432101240",
            "telephone_number": "614-293-8487",
            "fax_number": "614-293-8153"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LILLVIS",
        "first_name": "GREG",
        "middle_name": "A.",
        "credential": "AA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-04-28",
        "last_updated": "2025-07-14",
        "certification_date": "2025-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": "OH",
            "license": "67.000181",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Columbus, OH

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 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.