Active NPI
Graeme Robert Williams, MD, MBA
- Radiation Oncology Physician
- Philadelphia, PA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Radiation Oncology Physician
- License
- MD472366
- Practice address
- 3400 Spruce Street
Department of Radiation Oncology
Philadelphia, PA 19104-4206 - Phone
- (215) 662-2428
- Fax
- (215) 349-5923
- NPI assigned
- Mar 21, 2017
- 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 |
|---|---|---|---|---|
| Radiation Oncology Physician | 2085R0001X | 25MA11338000 | NJ | |
| Radiation Oncology Physician | 2085R0001X | MD472366 | PA | Primary |
Addresses
Primary practice location
3400 Spruce Street
Department of Radiation Oncology
Philadelphia, PA 19104-4206
Mailing address
3400 Spruce Street
Department of Radiation Oncology
Philadelphia, PA 19104-4206
Phone (215) 662-2428
Other practice location 1
3400 Spruce Street
Department of Radiation Oncology
Philadelphia, PA 19104-4206
Phone (215) 662-2428
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NJ, PA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Radiation Oncology
- Education
- Temple University School of Medicine, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1865 Route 70 E 130
Rad Cherry Hill
Cherry Hill, NJ 08003-2013
Phone (856) 433-2535
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Master of Business Administration, Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MT213066 | PA | MD | Radiation Oncology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Clinical Health Care Associates of New Jersey, PC | Current | Accepting new patients | |
| University of Penn-Medical Group | Current | Accepting new patients | |
| University of Penn-Medical Group | Current | Accepting new patients | |
| Clinical Health Care Associates of New Jersey, P.C. | Current | Accepting new patients | |
| University of Penn-Medical Group | Current | Accepting new patients | |
| Clinical Health Care Associates of New Jersey, PC | Radiation Oncology | Current | Accepting new patients |
| University of Penn - Medical Group | Past | Accepting new patients | |
| Univ of Penn Radiation Oncology | Radiation Oncology | Past | Accepting new patients |
Locations
1865 Route 70 E
Ste 220
Cherry Hill, NJ 08003
Phone (856) 429-0505
1865 Route 70 E
Ste 130
Cherry Hill, NJ 08003
Phone (856) 433-2535
3205 Fire Rd
Egg Hbr Twp, NJ 08234
Phone (609) 407-1113
350 Young Ave
Ste 100
Moorestown, NJ 08057
Phone (856) 206-4700
175 Madison Ave
Mount Holly, NJ 08060
Phone (609) 261-1660
1001 Chesterbrook Blvd
Berwyn, PA 19312
Phone (610) 576-7500
599 W State St
Ste 103
Doylestown, PA 18901
Phone (267) 880-2710
3400 Convention Ave
Philadelphia, PA 19104
Phone (215) 662-2300
3624 Market St
Fl 2
Philadelphia, PA 19104
Phone (215) 615-3669
145 King of Prussia Rd
Ste 200
Radnor, PA 19087
Phone (610) 902-4580
145 King of Prussia Rd
#G101
Wayne, PA 19087
Organizations & group practices 8
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.
-
- Pulmonary Disease Physician
- Cherry Hill, NJ
- NPI 1508019241
Radiation Oncology
-
- Gynecologic Oncology Physician
- Philadelphia, PA
- NPI 1235527342
-
- Dermatology Physician
- Philadelphia, PA
- NPI 1225426349
-
- Surgical Oncology Physician
- Philadelphia, PA
- NPI 1871981985
-
- Family Medicine Physician
- Cherry Hill, NJ
- NPI 1447260435
-
- Surgery Physician
- Cherry Hill, NJ
- NPI 1073962353
-
- Radiation Oncology Physician
- Philadelphia, PA
- NPI 1356397483
-
- Cardiovascular Disease Physician
- Philadelphia, PA
- NPI 1093725145
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Mount Holly, NJ
- NPI 1134125016
-
- General Acute Care Hospital
- Voorhees, NJ
- NPI 1528064409
-
- General Acute Care Hospital
- Camden, NJ
- NPI 1235134024
-
- General Acute Care Hospital
- Willingboro, NJ
- NPI 1053316844
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1490054400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783296000000",
"number": "1780115873",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3400 SPRUCE STREET",
"address_2": "DEPARTMENT OF RADIATION ONCOLOGY",
"city": "PHILADELPHIA",
"state": "PA",
"postal_code": "191044206",
"telephone_number": "215-662-2428",
"fax_number": "215-349-5923"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3400 SPRUCE STREET",
"address_2": "DEPARTMENT OF RADIATION ONCOLOGY",
"city": "PHILADELPHIA",
"state": "PA",
"postal_code": "191044206",
"telephone_number": "215-662-2428",
"fax_number": "215-349-5923"
}
],
"practiceLocations": [
{
"address_1": "3400 Spruce Street",
"address_2": "Department of Radiation Oncology",
"address_purpose": "LOCATION",
"city": "Philadelphia",
"state": "PA",
"postal_code": "191044206",
"country_code": "US",
"telephone_number": "215-662-2428",
"fax_number": "215-349-5923",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WILLIAMS",
"first_name": "GRAEME",
"middle_name": "ROBERT",
"name_prefix": "Dr.",
"credential": "MD, MBA",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2017-03-21",
"last_updated": "2026-07-06",
"certification_date": "2026-07-06",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0001X",
"taxonomy_group": "",
"desc": "Radiology, Radiation Oncology",
"state": "NJ",
"license": "25MA11338000",
"primary": false
},
{
"code": "2085R0001X",
"taxonomy_group": "",
"desc": "Radiology, Radiation Oncology",
"state": "PA",
"license": "MD472366",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Philadelphia, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 6, 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.