Active NPI
Martin William Graf, MD
- Internal Medicine Physician
- Rockville, MD
National Provider Identifier
1912012402
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 07162
- Practice address
- 15225 Shady Grove Road
Rockville, MD 20850 - Phone
- (301) 948-5092
- Fax
- (301) 977-7811
- NPI assigned
- Aug 21, 2006
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Allergy & Immunology Physician | 207K00000X | 07162 | MD | |
| Internal Medicine Physician | 207R00000X | 07162 | MD | Primary |
Addresses
Primary practice location
15225 Shady Grove Road
Rockville, MD 20850
Mailing address
5630 Wisconsin Ave
Chevy Chase, MD 20815
Phone (301) 718-2823
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)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 07162 | MD | MD | Allergy & Immunology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Frederick Health Hospital Inc | 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 and National Provider Directory roles.
-
- General Acute Care Hospital
- Frederick, MD
- NPI 1538165527
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1156118400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1912012402",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5630 WISCONSIN AVE",
"city": "CHEVY CHASE",
"state": "MD",
"postal_code": "20815",
"telephone_number": "301-718-2823",
"fax_number": "301-977-7811"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "15225 SHADY GROVE ROAD",
"city": "ROCKVILLE",
"state": "MD",
"postal_code": "20850",
"telephone_number": "301-948-5092",
"fax_number": "301-977-7811"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRAF",
"first_name": "MARTIN",
"middle_name": "WILLIAM",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-08-21",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207K00000X",
"taxonomy_group": "",
"desc": "Allergy & Immunology",
"state": "MD",
"license": "07162",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MD",
"license": "07162",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Rockville, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.