Active NPI
Christopher Drennen, D.M.D.
- Periodontics
- Potomac, MD
National Provider Identifier
1043597214
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Periodontics
- License
- DN18461
- Practice address
- 9800 Falls Rd Ste 104
Potomac, MD 20854-3939 - Phone
- (301) 299-1505
- NPI assigned
- Nov 15, 2011
- Last updated
- Jun 28, 2023
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Periodontics | 1223P0300X | 17254 | MD | |
| Periodontics | 1223P0300X | 0401417114 | VA | |
| Periodontics | 1223P0300X | DN18461 | FL | Primary |
Addresses
Primary practice location
9800 Falls Rd Ste 104
Potomac, MD 20854-3939
Mailing address
9800 Falls Rd Ste 104
Potomac, MD 20854-3939
Phone (202) 455-9009
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| DN18461 | FL | MD | Periodontist |
| 17254 | MD | MD | Periodontist |
| 0401417114 | VA | MD | Periodontist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Oscar Gonzalez DDS PA | Past | Accepting new patients |
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": "1321315200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1687910400000",
"number": "1043597214",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "9800 FALLS RD STE 104",
"city": "POTOMAC",
"state": "MD",
"postal_code": "208543939",
"telephone_number": "202-455-9009"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "9800 FALLS RD STE 104",
"city": "POTOMAC",
"state": "MD",
"postal_code": "208543939",
"telephone_number": "301-299-1505"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DRENNEN",
"first_name": "CHRISTOPHER",
"name_prefix": "Dr.",
"credential": "D.M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2011-11-15",
"last_updated": "2023-06-28",
"certification_date": "2022-02-15",
"status": "A"
},
"taxonomies": [
{
"code": "1223P0300X",
"taxonomy_group": "",
"desc": "Dentist, Periodontics",
"state": "MD",
"license": "17254",
"primary": false
},
{
"code": "1223P0300X",
"taxonomy_group": "",
"desc": "Dentist, Periodontics",
"state": "VA",
"license": "0401417114",
"primary": false
},
{
"code": "1223P0300X",
"taxonomy_group": "",
"desc": "Dentist, Periodontics",
"state": "FL",
"license": "DN18461",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
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Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 28, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.