Medicare Enrolled

Dr. Stephen Garrison, MD

Radiation Oncology · Inverness, FL
Practice pattern: Mixed Practice— Diverse clinical practice across multiple procedure types
502 W HIGHLAND BLVD, Inverness, FL 34452
3527261551
In practice since 2008 (17 years)
NPI: 1457513152 verify on NPPES ↗
High
DATA COVERAGE
Data in 3 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Garrison from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Garrison

Dr. Stephen Garrison is a radiation oncology in Inverness, FL, with 17 years in practice. Based on federal Medicare data, Dr. Garrison performed 4,889 Medicare services across 4,313 unique beneficiaries.

The Data Coverage level for Dr. Garrison is High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 17 years in practice▲ Top 35% volume in FL

Medicare Practice Summary

Medicare Utilization ↗
4,889
Medicare services
Top 35% in FL for radiation oncology
4,313
Unique beneficiaries
$24
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~288 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

ProcedureVolumeAvg. paidAvg. submitted
Chest X-ray, 1 view1,647$7$99
Screening mammography282$37$263
3D screening mammography (tomosynthesis)280$29$177
CT scan of head/brain, without contrast205$31$425
X-ray of abdomen, 1 view173$7$98
CT scan of abdomen and pelvis with contrast145$69$1,196
Ct scan of abdomen and pelvis without contrast140$65$1,088
Hip X-ray, 2-3 views101$8$159
Bone density scan (DEXA)94$10$141
Imaging for evaluation of swallowing function93$20$238
Ultrasound of both sides of head and neck blood flow93$30$635
Ct scan of blood vessels of chest with contrast72$68$1,062
Ct scan of chest with contrast71$43$639
Ct scan of upper spine without contrast69$36$526
Limited ultrasound scan of abdomen55$23$349
Complete ultrasound scan behind abdominal cavity53$27$431
Shoulder X-ray, 2+ views52$7$112
Ct scan of blood vessels of abdomen and pelvis with contrast52$82$1,183
X-ray of knee, 1-2 views48$7$106
Knee X-ray, 3 views47$8$114
Foot X-ray, 3+ views46$7$98
Limited ultrasound scan of joint or other extremity structure except blood vessels46$27$364
Ct scan of abdomen and pelvis before and after contrast45$75$1,230
Nuclear medicine study of parathyroid41$30$563
Ct scan of abdominal aorta and both leg arteries with contrast37$89$1,385
X-ray of ribs on side of body, minimum of 3 views34$10$110
Diagnostic mammography of both breasts33$38$357
Nuclear medicine study of bone and/or joint whole body31$32$472
Ct scan of lower spine without contrast29$36$505
Ultrasound study of one arm or leg veins with compression and maneuvers29$16$325
Limited ultrasound scan of 1 breast26$30$478
Nuclear medicine study of stomach to assess emptying26$30$425
Nuclear medicine studies of heart muscle at rest and with stress and spect26$58$909
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066)26$19$168
X-ray of lower and sacral spine, 2-3 views24$8$129
Mri scan of brain without contrast23$57$848
Mri scan of abdomen without contrast23$56$760
Mri scan of abdomen before and after contrast23$84$1,515
X-ray of hand, minimum of 3 views22$6$78
Ct scan of leg without contrast22$36$530
Diagnostic mammography of 1 breast22$31$284
X-ray of lower and sacral spine, minimum of 4 views21$9$175
X-ray of pelvis, 1-2 views21$6$95
X-ray of wrist, minimum of 3 views21$7$87
Ct scan of blood vessels of neck with contrast20$67$1,170
Mri scan of lower spinal canal without contrast20$55$737
X-ray of upper spine, 2-3 views19$8$125
Ultrasound of leg arteries or artery grafts19$30$553
Nuclear medicine study of lymphatic system17$45$697
Nuclear medicine study of liver and bile duct system17$28$456
Nuclear medicine study of lung circulation17$27$392
Complete ultrasound of abdomen and pelvis artery and vein blood flow17$43$993
X-ray of knee, 4 or more views16$9$119
X-ray of surgical specimen16$12$80
Ultrasound of one leg arteries or artery grafts16$18$320
Chest X-ray, 2 views15$8$162
CT scan of chest, without contrast15$42$633
X-ray of hip, 1 view14$7$142
X-ray of ankle, minimum of 3 views14$7$96
Ultrasound scan of head and neck soft tissue14$22$288
Biopsy of breast and placement of locating device using x-ray with needle, first growth13$133$2,168
Ct scan of face without contrast13$32$518
X-ray of elbow, minimum of 3 views13$7$103
Ct scan of blood vessels and grafts of heart with contrast13$91$2,263
Ultrasound study of arm or leg veins with compression and maneuvers13$25$475
X-ray of both hips, minimum of 5 views12$12$187
Ct scan of blood vessels of head with contrast11$68$987
X-ray of upper spine, 4-5 views11$11$168
X-ray of middle spine, 3 views11$8$115
X-ray of forearm, 2 views11$6$85
X-ray of lower leg, 2 views11$6$94
Nuclear medicine study of bone taken at different times11$38$610
Ultrasound study of arm and leg arteries11$10$224
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Looking for a radiation oncology in Inverness?
Compare radiation oncologys in the Inverness area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Radiation Oncologys within 10 mi
25
Per 100K population
15.8
County median income
$55,355
Nearest hospital
HCA FLORIDA CITRUS HOSPITAL
0.0 mi

Data Sources

Provider Registry NPPESWeekly updates
Medicare Enrollment PECOSMonthly updates
Practice Data Medicare Util.Annual (CY lag)
Industry Payments— No paymentsN/A
Disciplinary History— Not publicN/A

This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Garrison is a mixed practice specialist, with moderate Medicare volume, with 17 years of practice experience.

This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →

Frequently Asked Questions

Is Dr. Garrison experienced with chest x-ray, 1 view?
Based on Medicare claims data, Dr. Garrison performed 1,647 chest x-ray, 1 view services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
How do Dr. Garrison's costs compare to other radiation oncologys in Inverness?
Dr. Garrison's average Medicare payment per service is $24. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently High for Dr. Garrison) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →