Dr. Andy Williamson, M.D.
What this data tells you about Dr. Williamson
Dr. Andy Williamson is a family medicine specialist in Dublin, GA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Williamson performed 8,007 Medicare services across 5,304 unique beneficiaries.
Between the years covered by Open Payments, Dr. Williamson received a total of $9,460 from 64 pharmaceutical and/or device companies across 592 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Williamson is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗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.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,178 | $80 | $217 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
658 | $8 | $37 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
599 | $8 | $20 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
524 | $33 | $45 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
443 | $10 | $46 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
350 | $13 | $65 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
342 | $16 | $45 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
284 | $54 | $152 |
| Influenza virus detection test A laboratory test that uses an immunoassay technique to detect the presence of the influenza virus through direct visual observation. |
277 | $16 | $33 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
267 | $3 | $26 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
248 | $9 | $29 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
223 | $120 | $175 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
211 | $20 | $21 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
199 | $71 | $80 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
196 | $9 | $44 |
| SARS-CoV-2 immunoassay test A laboratory test using immunoassay techniques to detect the presence of severe acute respiratory syndrome coronavirus. |
140 | $35 | $88 |
| Strep A rapid test A rapid test to detect Group A Streptococcus bacteria using an immunoassay method with direct visual observation. |
133 | $16 | $40 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
123 | $21 | $108 |
| Diabetes self-management training, group session A group educational session for diabetes management involving two or more participants. The service is billed in 30-minute increments. |
121 | $7 | $56 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
95 | $9 | $25 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
95 | $17 | $46 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
94 | $0 | $16 |
| Methylprednisolone acetate injection, 20 mg A 20 mg injection of methylprednisolone acetate, a corticosteroid medication. This code specifies the drug and dosage administered. |
73 | $3 | $5 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
70 | $10 | $80 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
69 | $4 | $36 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
69 | $19 | $40 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
68 | $1 | $8 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
62 | $5 | $29 |
| Urine microalbumin test (kidney screening) A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage. |
59 | $6 | $29 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
57 | $8 | $37 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
57 | $112 | $278 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
40 | $85 | $850 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
38 | $86 | $150 |
| Injection, methylprednisolone acetate, 40 mg | 34 | $4 | $10 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
30 | $34 | $150 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
30 | $138 | $240 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
27 | $24 | $25 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
23 | $4 | $27 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
22 | $22 | $104 |
| Retinal photography (fundus photo) This procedure involves taking photographs of the retina, the light-sensitive tissue at the back of the eye. It is used to document the condition of the eye's interior structures. |
21 | $21 | $131 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
19 | $312 | $1,800 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
19 | $4 | $18 |
| Chronic care management, first 30 minutes This service covers the initial 30 minutes of care coordination for patients with two or more chronic conditions. It is provided personally by a healthcare professional each calendar month. |
19 | $57 | $75 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
18 | $53 | $214 |
| Pneumococcal conjugate vaccine (PCV15) An intramuscular injection of the 15-valent pneumococcal conjugate vaccine. This vaccine protects against 15 types of pneumococcal bacteria. |
18 | $220 | $225 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
18 | $205 | $350 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
17 | $26 | $111 |
| Initial preventive physical examination, new Medicare beneficiary A comprehensive preventive health visit for new Medicare beneficiaries during their first 12 months of enrollment. The service is conducted as a face-to-face visit and is limited to preventive care. |
17 | $154 | $200 |
| Annual wellness visit, initial visit A yearly appointment to review your health and create a personalized prevention plan. This initial visit focuses on preventive care and health assessment. |
17 | $155 | $175 |
| COVID-19 vaccine administration Administration of a single dose of the coronavirus vaccine. |
16 | $38 | $50 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
15 | $20 | $115 |
| MRI of lower spine, without contrast A magnetic resonance imaging scan of the lower spinal canal that does not use contrast dye to create detailed images of the spine. |
14 | $141 | $1,500 |
| Natriuretic peptide level test A blood test that measures the level of natriuretic peptide, a protein produced by the heart and blood vessels. |
14 | $38 | $60 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
14 | $71 | $469 |
| MRI scan of brain, without contrast A magnetic resonance imaging test of the brain that does not use contrast dye. This procedure creates detailed images of the brain's structure using magnetic fields and radio waves. |
13 | $137 | $1,500 |
| Lipase level test A blood test that measures the amount of lipase, a fat-digesting enzyme, in your body. |
13 | $7 | $20 |
| Quadrivalent influenza vaccine, preservative-free A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose. |
13 | $22 | $30 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording the heart's electrical activity continuously using an external device for a period exceeding 48 hours but not more than 7 days. |
13 | $8 | $125 |
| ECG screening, interpretation and report only A routine 12-lead electrocardiogram is interpreted and reported as part of an initial preventive physical examination. |
13 | $3 | $80 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
12 | $72 | $256 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
12 | $45 | $400 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
12 | $61 | $308 |
| Troponin blood test A blood test that measures the amount of troponin protein in your body. Troponin is released into the blood when heart muscle is damaged. |
11 | $12 | $25 |
| COVID-19 vaccine (Moderna bivalent) An intramuscular injection of the SARS-CoV-2 vaccine containing 50 micrograms in a 0.5 mL dose. |
11 | $143 | $170 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (98%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 6% for family medicine in GA.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Williamson is a clinical cardiology specialist, with above-average Medicare volume (top 2% in GA), with low-engagement industry engagement in the top 6% of GA peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, 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. Data Coverage reflects 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.
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