Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1144218991 Individual Practitioner Male Practitioner

Dr. Malcolm Edward Williamson , MD

Radiology - Diagnostic Radiology • Ocala, FL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Malcolm Williamson, MD is a certified Radiology - Diagnostic Radiology practicing in Ocala, FL. With approximately 31 years of clinical experience since completing medical education in 1995, Dr. Williamson delivers high-quality medical care to the local community at 1818 SW 15TH AVE.

Dr. Williamson maintains professional affiliations with Northeast Georgia Physicians Group Inc, Medical Imaging Center Of Ocala Llp, St Thomas Radiology Associates Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, x-ray of chest, 1 view, injection, gadobenate dimeglumine (multihance), per ml. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1818 Sw 15th Ave

Ocala, FL 344743548

Telephone 3526714300
Fax 3526714393
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Radiology - Diagnostic Radiology in Ocala, FL

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
31 Yrs +4.6 yrs vs City Avg
City Avg: 26.4 Yrs
State Avg: 29.5 Yrs
Regional Practice Density
33 Specialists

Practicing in Ocala, FL (2898 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
78.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williamson (31 Years) 31 Yrs
Ocala Specialty Average (26.4 Years) 26.4 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml
12,160 137 $2.09 $0.13
71045 X-ray of chest, 1 view
1,111 1,010 $38.01 $8.23
A9577 Injection, gadobenate dimeglumine (multihance), per ml
810 52 $8.22 $1.79
70450 Ct scan head or brain without contrast
493 477 $183.12 $38.25
74177 Ct scan of abdomen and pelvis with contrast
244 241 $426.77 $83.25
74176 Ct scan of abdomen and pelvis without contrast
208 203 $408.78 $80.21
72125 Ct scan of upper spine without contrast
193 192 $224.18 $44.86
71275 Ct scan of blood vessels of chest with contrast
175 174 $386.54 $83.23
71046 X-ray of chest, 2 views
138 137 $115.44 $33.12
71046 X-ray of chest, 2 views
135 135 $47.85 $10.24
71250 Ct scan of chest without contrast
130 128 $217.43 $48.92
72148 MRI scan of lower spinal canal
121 121 $905.17 $191.04
71250 Ct scan of chest without contrast
115 115 $694.82 $128.15
74018 X-ray of abdomen, 1 view
97 91 $37.31 $8.55
70498 Ct scan of blood vessels of neck with contrast
96 95 $357.88 $76.83
70496 Ct scan of blood vessels of head with contrast
91 90 $368.12 $78.41
76536 Ultrasound of head and neck
80 80 $454.28 $106.53
70551 Mri scan of brain without contrast
79 78 $307.75 $67.73
73502 X-ray of hip, 2-3 views
73 73 $48.56 $10.46
73030 X-ray of shoulder, minimum of 2 views
66 62 $40.88 $8.85
70553 Mri scan of brain before and after contrast
60 58 $1578.78 $306.27
72131 CT scan of lower spine
57 56 $209.11 $44.55
73630 X-ray of foot, minimum of 3 views
55 53 $35.16 $7.92
73130 X-ray of hand, minimum of 3 views
53 49 $36.53 $8.02
70486 CT scan of face
51 51 $183.31 $37.59
72100 X-ray of lower and sacral spine, 2-3 views
50 49 $142.44 $39.17
73562 X-ray of knee, 3 views
49 48 $40.20 $8.72
74174 Ct scan of blood vessels of abdomen and pelvis with contrast
49 49 $450.41 $100.56
74018 X-ray of abdomen, 1 view
48 46 $96.46 $30.02
76770 Complete ultrasound scan behind abdominal cavity
47 47 $445.12 $102.54
73110 X-ray of wrist, minimum of 3 views
44 43 $38.75 $8.23
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers
44 44 $91.77 $20.55
71260 Ct scan of chest with contrast
44 44 $264.23 $52.10
93970 Ultrasound study of arm or leg veins with compression and maneuvers
41 41 $158.46 $32.23
72192 Ct scan pelvis
40 40 $226.30 $50.32
73590 X-ray of lower leg, 2 views
40 38 $37.00 $7.59
72141 MRI scan of upper spinal canal
40 40 $881.30 $173.36
72170 X-ray of pelvis, 1-2 views
39 39 $38.31 $8.21
76705 Limited ultrasound scan of abdomen
39 39 $121.23 $26.25
70553 Mri scan of brain before and after contrast
39 39 $519.46 $105.49
73610 X-ray of ankle, minimum of 3 views
38 36 $39.34 $8.23
72128 CT scan of middle spine
38 38 $203.00 $44.06
74178 Ct scan of abdomen and pelvis before and after contrast
36 36 $1403.69 $345.69
70551 Mri scan of brain without contrast
35 35 $887.74 $198.74
73552 X-ray of thigh bone, minimum 2 views
34 33 $40.00 $8.51
74176 Ct scan of abdomen and pelvis without contrast
31 31 $804.83 $179.44
74177 Ct scan of abdomen and pelvis with contrast
30 30 $1237.46 $301.28
76770 Complete ultrasound scan behind abdominal cavity
30 30 $157.27 $34.12
73080 X-ray of elbow, minimum of 3 views
28 26 $38.00 $8.22
77080 Dxa bone density measurement of hip, pelvis, spine
28 28 $228.29 $38.75
73130 X-ray of hand, minimum of 3 views
27 21 $126.03 $34.47
0042T Computed tomography (ct) of brain blood flow, volume, and timing of flow analysis with contrast
27 27 $270.00 $214.71
71260 Ct scan of chest with contrast
26 26 $917.31 $158.99
74230 Imaging for evaluation of swallowing function
26 25 $109.00 $24.61
72040 X-ray of upper spine, 2-3 views
26 25 $133.14 $39.14
72100 X-ray of lower and sacral spine, 2-3 views
24 24 $51.75 $10.55
73630 X-ray of foot, minimum of 3 views
24 23 $116.98 $33.72
70450 Ct scan head or brain without contrast
23 23 $481.83 $100.43
71271 Low dose ct scan of chest for lung cancer screening
23 23 $975.64 $138.07
73502 X-ray of hip, 2-3 views
22 22 $175.86 $47.12
73560 X-ray of knee, 1-2 views
22 21 $41.45 $7.94
70486 CT scan of face
21 21 $649.35 $122.43
72146 Mri scan of middle spinal canal
21 20 $982.71 $152.11
72148 MRI scan of lower spinal canal
20 20 $302.00 $67.61
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers
20 20 $475.34 $110.47
73562 X-ray of knee, 3 views
19 16 $143.89 $36.68
76700 Ultrasound of abdomen
19 19 $485.71 $112.09
70491 CT scan of neck with contrast
18 18 $926.01 $188.26
73020 X-ray of shoulder, 1 view
17 17 $33.00 $7.23
71101 X-ray of ribs on side of body, minimum of 3 views
16 16 $54.00 $12.42
73090 X-ray of forearm, 2 views
16 14 $34.00 $7.59
72158 Mri scan of lower spinal canal before and after contrast
16 15 $471.00 $104.38
72141 MRI scan of upper spinal canal
16 16 $300.00 $66.34
73700 Ct scan of leg without contrast
16 16 $203.00 $45.20
73060 X-ray of upper arm, minimum of 2 views
16 16 $38.75 $7.61
76705 Limited ultrasound scan of abdomen
16 16 $363.01 $85.18
93880 Ultrasound of both sides of head and neck blood flow
16 16 $163.44 $37.34
73030 X-ray of shoulder, minimum of 2 views
15 14 $116.26 $31.37
72040 X-ray of upper spine, 2-3 views
15 15 $50.00 $10.56
72132 Ct scan of lower spine with contrast
15 15 $249.00 $50.16
76882 Limited ultrasound scan of joint or other extremity structure except blood vessels
14 13 $165.85 $62.85
70498 Ct scan of blood vessels of neck with contrast
13 13 $1127.85 $222.23
72072 X-ray of middle spine, 3 views
13 13 $135.62 $39.48
72157 Mri scan of middle spinal canal before and after contrast
12 11 $543.25 $104.10
72131 CT scan of lower spine
12 12 $654.08 $124.71
70480 Ct scan of cranial cavity without contrast
11 11 $679.18 $154.14
70490 Ct scan of soft tissue of neck without contrast
11 11 $265.18 $59.52
72050 X-ray of upper spine, 4 or 5 views
11 11 $184.55 $52.86

Medical Specialties & State Licenses

CMS Verified: 2025-10-01
Radiology - Diagnostic Radiology Primary Specialty

NUCC Taxonomy Code: 2085R0202X

State License FL ME72868

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Radiology - Neuroradiology

NUCC Taxonomy Code: 2085N0700X

State License VA 0101284099

A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.

Radiology - Diagnostic Radiology

NUCC Taxonomy Code: 2085R0202X

State License VA 0101284099

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Radiology - Diagnostic Radiology

NUCC Taxonomy Code: 2085R0202X

State License GA 98541

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Radiology - Neuroradiology

NUCC Taxonomy Code: 2085N0700X

State License FL ME72868

A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
258744100 (FL)

Hospital & Practice Group Affiliations

Radiology Imaging Associates Llc

1500 Se 1st Ave, Ocala, FL 344716504

Phone: 3523517200

Radiology Imaging Associates Llc

907 W Norvell Bryant Hwy, Hernando, FL 344422856

Phone: 3526714221

Radiology Imaging Associates Llc

4600 Sw 46th Ct, Ocala, FL 344745708

Phone: 3522913400

Northeast Georgia Physicians Group Inc

7091 Sw 60th Ln, Ocala, FL 344741943

Phone: 7702192394

Northeast Georgia Physicians Group Inc

2300 Se 17th St, Ocala, FL 344719142

Phone: 7702199000

Radiology Imaging Associates Llc

1431 Sw 1st Ave, Ocala, FL 344716500

Phone: 3522913000

St Francis Physician Practices Llc

5601 Se Hwy 42, Summerfield, FL 344915137

Phone: 7063203210

Radiology Imaging Associates Llc

1490 Se Magnolia Ext, Ocala, FL 344714443

Phone: 3527327400

Danville Physician Practices Llc

5601 Se Hwy 42, Summerfield, FL 344915137

Phone: 3522663278

Ocala Health Imaging Services Llc

2300 Se 17th St, Ocala, FL 344719142

Phone: 3526908403

Northeast Georgia Physicians Group Inc

3949 Sw College Rd, Ocala, FL 344745713

Phone: 7702199000

Dlp Twin County Physician Practices Llc

5601 Se Hwy 42, Summerfield, FL 344915137

Phone: 3522663278

Northeast Georgia Physicians Group Inc

743 Spring St Ne, Gainesville, GA 305013715

Medical Imaging Center Of Ocala Llp

1901 Se 18th Ave, Ocala, FL 344718214

Phone: 3526714300

Timberridge Imaging Center

9521 Sw Hwy 200, Ocala, FL 344817719

Phone: 3526714300

Sentara Medical Group

5601 Se Hwy 42, Summerfield, FL 344915137

Phone: 3862747118

Inverness Medical Imaging Llc

2105 Hwy 44 W, Inverness, FL 344533805

Phone: 3524194818

Medical Imaging Center Of Ocala Llp

1490 Se Magnolia Ave, Ocala, FL 344714443

Phone: 3526714300

Timberridge Imaging Center

3949 Sw College Rd, Ocala, FL 344745713

Phone: 3526714255

St Thomas Radiology Associates Llc

5601 Se Hwy 42, Summerfield, FL 344915137

Phone: 3862747118

Medical Imaging Center Of Ocala Llp

1901 Se 18th Ave, Ocala, FL 344718228

Phone: 3527327400

St Thomas Radiology Associates Llc

9048 Sugar Est, St Thomas, VI 008023634

Phone: 3407768311

Northeast Georgia Physicians Group Inc

743 Spring Nest, Gainesville, GA 305013715

Phone: 7702196000

Northeast Georgia Physicians Group Inc

5601 Se Hwy 42, Summerfield, FL 344915137

Phone: 7708488000

Radiology Imaging Associates Llc

3741 E Silver Springs Blvd, Ocala, FL 344704903

Phone: 3527236911

Radiology Imaging Associates Llc

400 Health Park Blvd, St Augustine, FL 320865784

Phone: 9048195155

Secondary Practice Locations

400 Health Park Blvd

St Augustine, FL 320865784

Phone: 9048195155

743 Spring St Ne

Gainesville, GA 305013715

Phone: 7702199000

2300 Opitz Blvd

Woodbridge, VA 221913311

Phone: 7035231199

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

24 Associated Practitioners
Dr. Ralf Barckhausen , MD

Radiology - Diagnostic Radiology

NPI 1023006855

Doctor of Medicine (M.D.)

Dr. Edson Cortes , MD

Radiology - Diagnostic Radiology

NPI 1083602817

Doctor of Medicine (M.D.)

Alexis Wear

Physician Assistant - Medical

NPI 1144058801
Philip Berardi , PA-C

Physician Assistant

NPI 1154318558

Physician Assistant (Certified)

Dr. Caleb Rivera , MD

Radiology - Diagnostic Radiology

NPI 1164410916

Doctor of Medicine (M.D.)

Dr. David Mckay , MD

Radiology - Vascular & Interventional Radiology

NPI 1225026073

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 08, 2025

Radiology (License #0101284099 in VA)

NPI Profile Active January 14, 2010

NPI status registered as active in NPPES database

📍
Updated Practice Location January 14, 2010

Registered at 1818 SW 15TH AVE, OCALA, FL 344743548 (Tel: 3526714300)

📍
Updated Business Mailing Address January 14, 2010

Registered at PO BOX 6200, OCALA, FL 344786200 (Tel: 3526714300)

👤
Provider Name / Credentials Updated January 14, 2010

Recorded as MALCOLM WILLIAMSON, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 14, 2010

Radiology (License #ME72868 in FL)

🟢
Initial NPI Registration & Enumeration October 06, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Malcolm Williamson. Be the first to share your experience!

Sign in to leave a review for Dr. Malcolm Williamson

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1144218991
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 06, 2005
Last Update: October 01, 2025
Sole Proprietor: No

Mailing Address

Po Box 6200

Ocala, FL 344786200

Phone: 3526714300

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.