WILLIAM T GRIZOS MD
NPI 1811910854
Radiology - Radiation Oncology in Philadelphia, PA

Active since July 25, 2006PECOS EnrolledAccepts Medicare Assignment
8835 GERMANTOWN AVE., PHILADELPHIA, PA 19118(215) 242-1100(215) 242-1101 Get Directions Write a Review

NPPES record last updated: September 26, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About William T Grizos Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM T GRIZOS MD (NPI 1811910854) is an individual radiation oncology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD-027845-E) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (1981).

NPPES Registry Identity

NPI1811910854
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameWILLIAM T GRIZOSCredential: MD
Location Address8835 GERMANTOWN AVE.Philadelphia, PA 19118-2718
Mailing Address8835 Germantown Ave.Philadelphia, PA 19118-2718 · (215) 242-1100 · Fax (215) 242-1101
Fax(215) 242-1101
Sole ProprietorNo
Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 1981
Enumeration DateJuly 25, 2006
Last NPPES UpdateSeptember 26, 2012
NPI 1811910854 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License Licensed in PA · MD-027845-E
Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

8835 GERMANTOWN AVE., Philadelphia, PA 19118

Other Identifiers 3

Medicaid001147375PA
Medicaid7972601NJ
Medicare PIN541960PA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William T Grizos Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6608832225
PECOS Enrollment IDI20041206000876
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002
Stereoscopic x-ray guidance is a technique used in radiation therapy. It involves taking multiple X-ray images from different angles to create a 3D picture of the area to be treated. This helps accurately pinpoint the exact location for radiation delivery, ensuring the therapy is as effective as possible.
169 services21 patients
Radiation treatment management, 5 treatment sessions 77427
Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.
121 services34 patients
Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
114 services26 patients
Design and construction of complex radiation treatment device 77334
The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.
108 services24 patients
Established patient office or other outpatient visit, 10-19 minutes 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
94 services68 patients
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280
This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.
39 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$180.99 typical visit price
range $59.88 – $180.99
Typical copayment $45.24 (range $14.97 – $45.24)
Most-billed visit code 99205
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Grizos's NPI number?

The NPI number for William Grizos is 1811910854. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Where is William Grizos located?

William Grizos practices at 8835 Germantown Ave., Philadelphia, PA 19118. The listed phone number is (215) 242-1100.

What is William Grizos's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is William Grizos enrolled in Medicare?

Yes. William Grizos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Grizos accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list William Grizos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Grizos was last updated on September 26, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.