Active NPI
Greg Mark Booth, MD PHD
- Internal Medicine Physician
- Hampstead, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- D0077059
- Practice address
- 4231 N Woods TRL
Hampstead, MD 21074-3128 - Phone
- (410) 374-9391
- Fax
- (410) 871-7967
- NPI assigned
- Jun 30, 2008
- Last updated
- Aug 26, 2025
- 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | D0077059 | MD | Primary |
Addresses
Primary practice location
4231 N Woods TRL
Hampstead, MD 21074-3128
Mailing address
4231 N Woods TRL
Hampstead, MD 21074-3128
Phone (410) 374-9391
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
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Jefferson Medical College of Thomas Jefferson University, 2003
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
12 Newport Dr
Suite a
Forest Hill, MD 21050-1758
4231 N Woods TRL
Carroll Medical Group
Hampstead, MD 21074-3128
Phone (410) 374-9391
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 86.78 of 100
- Quality
- 89.6
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 66.32
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Lifebridge Primary Care of North Carroll, LLC | Current | Accepting new patients | |
| Frederick Health Hospital Inc | Past | Accepting new patients |
Locations
4231 North Woods Trl
Hampstead, MD 21074
Phone (410) 374-9391
4231 North Woods Trl
Ste 100
Hampstead, MD 21074
Phone (410) 374-9391
Organizations & group practices 3
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.
-
dba Carroll Medical Group
- Family Medicine Physician
- Hampstead, MD
- NPI 1811398175
-
- Physical Therapist
- Forest Hill, MD
- NPI 1578900668
-
dba Frederick Health Hospital
- General Acute Care Hospital
- Frederick, MD
- NPI 1538165527
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Owings Mills, MD
- NPI 1144400805
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1214784000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1756166400000",
"number": "1063674174",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4231 N WOODS TRL",
"city": "HAMPSTEAD",
"state": "MD",
"postal_code": "210743128",
"telephone_number": "410-374-9391",
"fax_number": "410-871-7967"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4231 N WOODS TRL",
"city": "HAMPSTEAD",
"state": "MD",
"postal_code": "210743128",
"telephone_number": "410-374-9391",
"fax_number": "410-871-7967"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BOOTH",
"first_name": "GREG",
"middle_name": "MARK",
"name_prefix": "Dr.",
"credential": "MD PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2008-06-30",
"last_updated": "2025-08-26",
"certification_date": "2025-08-26",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MD",
"license": "D0077059",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Hampstead, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 26, 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.
- 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.