Physician Profile
William T. Grizos, MD
Unclaimed ProfileAbout Dr. Grizos
Based in Philadelphia, PA, William T. Grizos, MD is listed in the NPI registry under radiation oncology. William graduated from Jefferson Medical College of Thomas Jefferson University in 1981. According to Medicare claims data, William cared for 168 Medicare patients across 256 services. The services billed most often include ct guidance for insertion of radiation therapy fields, stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy, and radiation treatment management, 5 treatment sessions.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (215) 242-1100
- Email not available
Practice Locations
8835 GERMANTOWN AVE.
Philadelphia, PA 19118
Conditions Commonly Evaluated or Treated
Within Radiation Oncology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Benign condition
Blood and lymph cancer
Bone cancer
Brain tumors
Cancer emergencies
Chest cancer
Endocrine cancer
Eye cancer
Eye conditions
Foot conditions
Gastrointestinal cancer
- Anal cancer
- Bile duct cancer
- Colon cancer
- Esophageal cancer
- Gallbladder cancer
- Liver cancer
- Pancreatic cancer
- Stomach cancer
Gynecologic cancer
Head & neck cancer
Head and neck cancer
Metastatic cancer
Neurologic condition
Orthopedic conditions
Sarcoma
Skin cancer
Thoracic cancer
Urologic cancer
Vascular conditions
Procedures & services
Most searched procedures
Advanced radiation
Benign treatment
Brain radiation
Cancer treatment
Central nervous system
Consultation
External radiation
- Electron beam therapy
- Image-guided radiation (IGRT)
- IMRT (Targeted intensity radiation)
- RapidArc / VMAT radiation
- Total body irradiation (TBI)
Eye cancer treatment
Follow-up care
Heart treatments
Internal radiation
Pain and symptom relief
Particle therapy
Precision radiation
- Adaptive radiation therapy
- Heart-sparing breath hold radiation (DIBH)
- Spine radiosurgery
- Stereotactic body radiation (SBRT)
- Stereotactic radiosurgery (SRS)
- Tattoo-free radiation
Prostate cancer treatment
Prostate protection
Radiation therapy
Skin cancer treatment
Skin lymphoma treatment
Specialized radiation
Targeted isotopes
Targeted radiation drugs
Treatment planning
Procedures Most Often Billed to Medicare
256 services · 168 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
106 | |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
25 | |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
22 | |
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
17 | |
| Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | Billing code | G6002 |
67 | |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
19 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other radiation oncologists in Philadelphia 8
Same specialty, same city.
More connections — 22 related providers in 3 groups
Trained at Jefferson Medical College of Thomas Jefferson University 7
Other providers in the same specialty who trained at the same institution.
Class of 1981 at Jefferson Medical College of Thomas Jefferson University 7
Providers who graduated from the same medical school in the same year.
Also performs Ct guidance for insertion of radiation therapy fields 8
Providers in PA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Grizos?
Dr. Grizos is a radiation oncologist in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Radiation Oncology”.
NPI registry
What is Dr. Grizos's address?
Dr. Grizos is listed at 8835 Germantown Ave., Philadelphia, PA 19118. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Grizos?
The number on file is (215) 242-1100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Grizos's NPI number?
Dr. Grizos's National Provider Identifier is 1811910854. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Grizos train?
Dr. Grizos attended Jefferson Medical College of Thomas Jefferson University, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Grizos been practicing?
Dr. Grizos has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Grizos perform?
According to Medicare billing data, Dr. Grizos performs imaging including ct guidance for insertion of radiation therapy fields and radiation treatment management, 5 treatment sessions, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Grizos confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grizos. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.