Active NPI
Karl John Maki, M.D.
- Neurology Physician
- Annapolis, MD
National Provider Identifier
1639465883
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Neurology Physician
- License
- D81220
- Practice address
- 122 Defense Hwy
Suite 210
Annapolis, MD 21401-7069 - Phone
- (410) 266-9694
- Fax
- (410) 266-9695
- NPI assigned
- Jun 27, 2011
- 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 |
|---|---|---|---|---|
| Neurology Physician | 2084N0400X | D81220 | MD | Primary |
Addresses
Primary practice location
122 Defense Hwy
Suite 210
Annapolis, MD 21401-7069
Mailing address
122 Defense Hwy
Suite 210
Annapolis, MD 21401-7069
Phone (410) 266-9694
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MD
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20160516001943 | MD | Practitioner - Neurology | 8123327301 | Reassigns benefits to 1 organization |
Care Compare profile
Medicare Care Compare- Specialty
- Neurology
- Education
- Other, 2015
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
122 Defense Hwy
Suite 210
Annapolis, MD 21401-7071
Phone (410) 266-9694
Hospital & facility affiliations
- Adoration Home Health
- Chesapeake - Potomac Home Health Agency, Inc.
- Bayada Home Health Care, Inc.
- University of MD Shore Medical Center at Easton
- Luminis Health Anne Arundel Medical Center, Inc
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Skin biopsy | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| D81220 | MD | MD | Neurology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Daniel Hexter MD PA | Neurology | Current | Accepting new patients |
| Daniel Hexter MD PA | Neurology | Current | Accepting new patients |
Locations
122 Defense Hwy
Ste 210
Annapolis, MD 21401
Phone (410) 266-9694
130 Love Point Rd
Ste 107
Stevensville, MD 21666
Phone (410) 266-9694
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 and National Provider Directory roles.
Hospital & facility affiliations 11
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Cambridge, MD
- NPI 1811982069
-
- Home Health Agency
- Forest Hill, MD
- NPI 1528352747
-
- Home Health Agency
- Columbia, MD
- NPI 1558680447
-
- Home Health Agency
- Glen Burnie, MD
- NPI 1578501789
-
- Home Health Agency
- Towson, MD
- NPI 1902843451
-
- Home Health Agency
- Hughesville, MD
- NPI 1184627234
-
- Clinical Medical Laboratory
- Annapolis, MD
- NPI 1356885032
Hospital
-
- General Acute Care Hospital
- Annapolis, MD
- NPI 1477517225
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1309132800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788307200000",
"number": "1639465883",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "122 DEFENSE HWY",
"address_2": "SUITE 210",
"city": "ANNAPOLIS",
"state": "MD",
"postal_code": "214017069",
"telephone_number": "410-266-9694",
"fax_number": "410-266-9695"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "122 DEFENSE HWY",
"address_2": "SUITE 210",
"city": "ANNAPOLIS",
"state": "MD",
"postal_code": "214017069",
"telephone_number": "410-266-9694",
"fax_number": "410-266-9695"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAKI",
"first_name": "KARL",
"middle_name": "JOHN",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2011-06-27",
"last_updated": "2026-09-02",
"certification_date": "2026-09-02",
"status": "A"
},
"taxonomies": [
{
"code": "2084N0400X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Neurology",
"state": "MD",
"license": "D81220",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Annapolis, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 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.