Active NPI
Mario E Nicholson, MD
- Internal Medicine Physician
- Hyattsville, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- D41747
- Practice address
- 6525 Belcrest Road
Suite 160
Hyattsville, MD 20782-2016 - Phone
- (301) 209-6155
- Fax
- (301) 209-6206
- NPI assigned
- Dec 12, 2006
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | MD21652 | DC | |
| Internal Medicine Physician | 207R00000X | D41747 | MD | Primary |
Addresses
Primary practice location
6525 Belcrest Road
Suite 160
Hyattsville, MD 20782-2016
Mailing address
2101 East Jefferson Street
Ppqa Medicare Compliance Unite 4 West Kaiser Permanente
Rockville, MD 20852-4908
Phone (301) 816-6660
Other practice location 1
6 Garrett Ave
LA Plata, MD 20646-5959
Phone (301) 539-5100
Other practice location 2
9000 Woodyard Rd
Clinton, MD 20735-4206
Phone (240) 546-3428
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 182511900 | Medicaid | MD |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | MDExchange@patientfirstclinics.com | Health Information Exchange (HIE) |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in DC, MD
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD21652 | DC | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Patient First Maryland Medical Group PLLC | Current | Accepting new patients | |
| Patient First Maryland Medical Group, PLLC | Current | Accepting new patients | |
| Patient First Maryland Medical Group PLLC | Current | Accepting new patients | |
| Patient First Maryland Medical Group PLLC | Current | Accepting new patients | |
| Hospital Physician Services, LLLP | Internal Medicine | Past | Accepting new patients |
| National Emergency Services District of Columbia Inc | Past | Accepting new patients |
Locations
9000 Woodyard Rd
Clinton, MD 20735
Phone (240) 546-3248
10210 Reisterstown Rd
Owings Mills, MD 21117
Phone (410) 902-6776
726 Rockville Pike
Rockville, MD 20852
Phone (240) 238-0411
10755 Falls Rd
Ste 160
Timonium, MD 21093
Phone (410) 583-2777
2855 Crain Hwy
Waldorf, MD 20601
Phone (240) 427-1926
5000 Cox Rd
Glen Allen, VA 23060
Phone (804) 822-4355
Interoperability endpoints
- mdexchange@patientfirstclinics.com
Organizations & group practices 6
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.
-
- Family Medicine Physician
- Silver Spring, MD
- NPI 1265866503
DC
-
- Family Medicine Physician
- Glen Allen, VA
- NPI 1962423632
MD
-
- Family Medicine Physician
- Waldorf, MD
- NPI 1205087517
-
- Family Medicine Physician
- Capitol Heights, MD
- NPI 1427807999
-
- General Acute Care Hospital
- Westminster, MD
- NPI 1457302713
Internal Medicine
-
- Emergency Medicine Physician
- Washington, DC
- NPI 1588655963
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1165881600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1737504000000",
"number": "1689735144",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2101 EAST JEFFERSON STREET",
"address_2": "PPQA MEDICARE COMPLIANCE UNITE 4 WEST KAISER PERMANENTE",
"city": "ROCKVILLE",
"state": "MD",
"postal_code": "208524908",
"telephone_number": "301-816-6660",
"fax_number": "301-816-6308"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6525 BELCREST ROAD",
"address_2": "SUITE 160",
"city": "HYATTSVILLE",
"state": "MD",
"postal_code": "207822016",
"telephone_number": "301-209-6155",
"fax_number": "301-209-6206"
}
],
"practiceLocations": [
{
"address_1": "6 Garrett Ave",
"address_purpose": "LOCATION",
"city": "LA Plata",
"state": "MD",
"postal_code": "206465959",
"country_code": "US",
"telephone_number": "301-539-5100",
"fax_number": "301-934-2084",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "9000 Woodyard Rd",
"address_purpose": "LOCATION",
"city": "Clinton",
"state": "MD",
"postal_code": "207354206",
"country_code": "US",
"telephone_number": "240-546-3428",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NICHOLSON",
"first_name": "MARIO",
"middle_name": "E",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-12-12",
"last_updated": "2025-01-22",
"certification_date": "2025-01-22",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "DC",
"license": "MD21652",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MD",
"license": "D41747",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "182511900",
"state": "MD"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "MDExchange@patientfirstclinics.com",
"affiliation": "N",
"endpointDescription": "email",
"use": "HIE",
"useDescription": "Health Information Exchange (HIE)",
"address_1": "9000 Woodyard Rd",
"city": "Clinton",
"state": "MD",
"country_code": "US",
"postal_code": "207354206",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Hyattsville, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 22, 2025; 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.