Active NPI
Gregory Hayward Bennett, DO
- Allergy & Immunology Physician
- Hilliard, OH
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Allergy & Immunology Physician
- License
- 34.014935
- Practice address
- 3535 Fishinger Blvd Ste 280
Hilliard, OH 43026-7568 - Phone
- (614) 273-2230
- Fax
- (614) 758-7609
- NPI assigned
- Mar 31, 2012
- Last updated
- Jun 30, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Allergy & Immunology Physician | 207K00000X | 34.014935 | OH | Primary |
Addresses
Primary practice location
3535 Fishinger Blvd Ste 280
Hilliard, OH 43026-7568
Mailing address
1810 Mackenzie Dr
Columbus, OH 43220-2967
Phone (614) 273-2250
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | cooperallergy@1047.direct.myezaccess.com |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in SC, OH
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Allergy/Immunology
- Education
- Other, 2012
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
3535 Fishinger Blvd
Suite 280
Hilliard, OH 43026-7568
Phone (614) 758-7600
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 34.014935 | OH | MD | Allergy & Immunology Physician |
| 40614 | SC | MD | Orthopaedic Trauma Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Charleston ENT Associates, LLC | Current | Accepting new patients | |
| Modern Allergy, LLC | Allergy & Immunology | Current | Accepting new patients |
| Charleston ENT Associates, LLC | Current | Accepting new patients | |
| University Otolaryngologists Inc | Allergy & Immunology | Current | Accepting new patients |
| Lima Memorial Joint Operating Company | Past | Accepting new patients |
Locations
1810 Mackenzie Dr
Columbus, OH 43220
Phone (614) 273-2234
6573 E Broad St
Ste A
Columbus, OH 43213
Phone (614) 755-5151
974 Bethel Rd
Ste A
Columbus, OH 43214
Phone (614) 538-2422
801 Ohio Health Blvd
Ste 220
Delaware, OH 43015
Phone (740) 368-5588
6670 Perimeter Dr
Ste 270
Dublin, OH 43016
Phone (614) 766-4903
5610 N Hamilton Rd
Gahanna, OH 43230
Phone (614) 476-1112
2526 London Groveport Rd
Grove City, OH 43123
Phone (614) 273-2230
3535 Fishinger Blvd
Ste 280
Hilliard, OH 43026
Phone (614) 222-0743
477 Cooper Rd
Ste 480
Westerville, OH 43081
Phone (614) 293-4238
625 Africa Rd
Ste 340
Westerville, OH 43082
Phone (614) 729-8483
1849 Savage Rd
Charleston, SC 29407
Phone (843) 576-2600
2295 Henry Tecklenburg Dr
Charleston, SC 29414
Interoperability endpoints
- gregory.bennett.1@26563.direct.athenahealth.com
- https://api.platform.athenahealth.com/26563/brand/1/csg/1/fhir/r4
Organizations & group practices 5
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.
-
- Allergy & Immunology Physician
- Hilliard, OH
- NPI 1356083802
-
- Otolaryngology Physician
- Charleston, SC
- NPI 1588607303
-
dba Ohio ENT and Allergy Physicians
- Otolaryngology Physician
- Dublin, OH
- NPI 1750330551
Allergy & Immunology
-
dba Surgery Center of Charleston
- Ambulatory Surgical Clinic/Center
- Charleston, SC
- NPI 1124026422
-
dba Lima Memorial Health System
- General Acute Care Hospital
- Lima, OH
- NPI 1336144732
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1333152000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782777600000",
"number": "1376819524",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1810 MACKENZIE DR",
"city": "COLUMBUS",
"state": "OH",
"postal_code": "432202967",
"telephone_number": "614-273-2250",
"fax_number": "614-273-2255"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3535 FISHINGER BLVD STE 280",
"city": "HILLIARD",
"state": "OH",
"postal_code": "430267568",
"telephone_number": "614-273-2230",
"fax_number": "614-758-7609"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BENNETT",
"first_name": "GREGORY",
"middle_name": "HAYWARD",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2012-03-31",
"last_updated": "2026-06-30",
"certification_date": "2026-06-30",
"status": "A"
},
"taxonomies": [
{
"code": "207K00000X",
"taxonomy_group": "",
"desc": "Allergy & Immunology",
"state": "OH",
"license": "34.014935",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "cooperallergy@1047.direct.myezaccess.com",
"affiliation": "N",
"address_1": "3535 Fishinger Blvd Ste 280",
"city": "Hilliard",
"state": "OH",
"country_code": "US",
"postal_code": "430267568",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Hilliard, OH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 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.