Dr. Wynnson Tom, M.D.
What this data tells you about Dr. Tom
Dr. Wynnson Tom is an anesthesiology specialist in Orange, CA, with 16 years of NPI registration. Based on federal Medicare data, Dr. Tom performed 655 Medicare services across 641 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tom received a total of $301 from 5 pharmaceutical and/or device companies across 8 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in anesthesiology. 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. Tom 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 |
|---|---|---|---|
| Anesthesia for endoscopic procedure on esophagus, stomach, or upper small bowel Administration of anesthesia during an endoscopic procedure involving the esophagus, stomach, or upper small bowel. |
114 | $115 | $2,959 |
| Anesthesia for large bowel endoscopy Administration of anesthesia during a procedure to examine the large bowel using an endoscope. |
96 | $110 | $2,790 |
| Anesthesia for bowel endoscopy Administration of anesthesia during a procedure to examine the small and large bowel using an endoscope. |
44 | $138 | $3,469 |
| Anesthesia for upper abdomen procedure Administration of anesthesia for surgical procedures performed on the upper abdomen. |
39 | $266 | $6,508 |
| Abdominal wall pain injection with imaging guidance An injection of local anesthetic is administered to control pain in the abdominal wall on both sides. The procedure is performed using imaging guidance to ensure accurate placement. |
37 | $56 | $4,114 |
| Anesthesia for total knee replacement Administration of anesthesia during a total knee joint replacement procedure. |
33 | $323 | $7,916 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
33 | $25 | $823 |
| Arterial line insertion A tube is inserted into an artery through the skin to allow for blood sampling or infusion. |
30 | $36 | $1,234 |
| Femoral nerve injection with anesthetic and/or steroid An injection of an anesthetic agent and/or steroid into the femoral nerve in the thigh. This procedure delivers medication directly to the nerve. |
30 | $44 | $2,880 |
| Brachial plexus injection with anesthetic and/or steroid An injection of an anesthetic agent and/or steroid into the brachial plexus nerve bundle in the arm. |
26 | $56 | $3,291 |
| Anesthesia for lower abdomen procedure Administration of anesthesia for surgical procedures performed on the lower abdomen. |
22 | $219 | $5,385 |
| Injection into lower spine canal A procedure where a substance is injected into the lower part of the spinal canal. |
21 | $67 | $3,291 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
21 | $12 | $411 |
| Anesthesia for skin procedures on arms, legs, or front body This code covers anesthesia services provided for surgical procedures performed on the skin of the arms, legs, or anterior trunk. |
20 | $135 | $3,394 |
| Anesthesia for hip joint procedure Administration of anesthesia during a surgical procedure involving the hip joint. |
16 | $222 | $5,708 |
| Anesthesia for colonoscopy Administration of anesthesia during an examination of the colon using an endoscope. |
15 | $131 | $3,126 |
| Anesthesia for retinal surgery Administration of anesthesia during surgical procedures on the retina. |
13 | $179 | $4,462 |
| Anesthesia for urinary system procedure via urethra Administration of anesthesia for a surgical procedure on the urinary system performed through the urethra. |
12 | $136 | $3,394 |
| Anesthesia for lower abdomen hernia repair Anesthesia services provided during the surgical repair of a hernia in the lower abdomen for patients aged one year or older. |
11 | $196 | $4,787 |
| Anesthesia for total hip replacement Administration of anesthesia during a total hip replacement surgery. This code covers the anesthetic services provided for the procedure. |
11 | $339 | $8,227 |
| Anesthesia for procedure on upper 2/3rd of thigh bone Anesthesia services provided for a surgical procedure involving the upper two-thirds of the thigh bone. |
11 | $231 | $5,797 |
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
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. Tom is a mixed practice specialist, with above-average Medicare volume (top 5% in CA), with low-engagement industry engagement, with 16 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Tom experienced with anesthesia for endoscopic procedure on esophagus, stomach, or upper small bowel?
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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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