Active NPI
Senior Doc Maryland PC
- Family Medicine Physician
- Columbia, MD
National Provider Identifier
1689551822
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- Legal business name
- SENIOR DOC MARYLAND PC
- Practice address
- 6700 Alexander Bell Dr Ste 200
Columbia, MD 21046-2105 - Phone
- (855) 434-7763
- NPI assigned
- Aug 19, 2025
- Last updated
- Aug 19, 2025
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- John Mark Geiss, D.O.
- Title
- Ceo
- Phone
- (714) 702-5145
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | Primary |
Addresses
Primary practice location
6700 Alexander Bell Dr Ste 200
Columbia, MD 21046-2105
Mailing address
5 Hutton Centre Dr Ste 950
Santa Ana, CA 92707-8744
Phone (855) 434-7763
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MD
Enrollment records 1
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 5
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1755561600000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1755561600000",
"number": "1689551822",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5 HUTTON CENTRE DR STE 950",
"city": "SANTA ANA",
"state": "CA",
"postal_code": "927078744",
"telephone_number": "855-434-7763"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6700 ALEXANDER BELL DR STE 200",
"city": "COLUMBIA",
"state": "MD",
"postal_code": "210462105",
"telephone_number": "855-434-7763"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "SENIOR DOC MARYLAND PC",
"organizational_subpart": "NO",
"enumeration_date": "2025-08-19",
"last_updated": "2025-08-19",
"certification_date": "2025-08-19",
"status": "A",
"authorized_official_last_name": "GEISS",
"authorized_official_first_name": "JOHN",
"authorized_official_middle_name": "MARK",
"authorized_official_title_or_position": "CEO",
"authorized_official_telephone_number": "714-702-5145",
"authorized_official_credential": "D.O."
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Family Medicine",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Columbia, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.