Active NPI
Gregory Allen Spielmann, D.D.S
- General Practice Dentistry
- Oklahoma City, OK
National Provider Identifier
1679756175
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Dentistry
- License
- 5963
- Practice address
- 4400 NW 63Rd Street
Oklahoma City, OK 73116-1509 - Phone
- (405) 848-7780
- Fax
- (405) 730-0399
- NPI assigned
- Dec 7, 2007
- Last updated
- Aug 24, 2026
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| General Practice Dentistry | 1223G0001X | 5963 | OK | Primary |
Addresses
Primary practice location
4400 NW 63Rd Street
Oklahoma City, OK 73116-1509
Mailing address
4400 NW 63Rd Street
Oklahoma City, OK 73116
Phone (405) 848-7780
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OK
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: No
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20210125002032 | OK | Practitioner - Oral Surgery | 3476634502 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 5963 | OK | MD | Professional Counselor |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Greg Spielmann LLC | Current | Accepting new patients |
Locations
2816 NW 58th St
Ste 105
Oklahoma City, OK 73112
Phone (405) 390-7400
Organizations & group practices 1
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.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1196985600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787529600000",
"number": "1679756175",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4400 NW 63RD STREET",
"city": "OKLAHOMA CITY",
"state": "OK",
"postal_code": "73116",
"telephone_number": "405-848-7780",
"fax_number": "405-730-0399"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4400 NW 63RD STREET",
"city": "OKLAHOMA CITY",
"state": "OK",
"postal_code": "731161509",
"telephone_number": "405-848-7780",
"fax_number": "405-730-0399"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SPIELMANN",
"first_name": "GREGORY",
"middle_name": "ALLEN",
"name_prefix": "Dr.",
"credential": "D.D.S",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-12-07",
"last_updated": "2026-08-24",
"certification_date": "2026-08-24",
"status": "A"
},
"taxonomies": [
{
"code": "1223G0001X",
"taxonomy_group": "",
"desc": "Dentist, General Practice",
"state": "OK",
"license": "5963",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Oklahoma City, OK
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 24, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.