Dr. Timothy Wei, M.D., PH.D.
What this data tells you about Dr. Wei
Dr. Timothy Wei is a neurology specialist in Walnut Creek, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Wei performed 23,410 Medicare services across 1,212 unique beneficiaries.
Between the years covered by Open Payments, Dr. Wei received a total of $23,619 from 26 pharmaceutical and/or device companies across 294 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Wei 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 |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
21,390 | $5 | $10 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
431 | $98 | $338 |
| 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. |
237 | $108 | $306 |
| Acupuncture, each additional 15 minutes This code represents an additional 15-minute session of acupuncture treatment beyond the initial session. |
143 | $27 | $93 |
| Nerve conduction studies, 7-8 tests A series of 7 to 8 nerve conduction tests to evaluate how well nerves are sending signals to muscles. |
129 | $173 | $676 |
| 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. |
125 | $70 | $195 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
113 | $64 | $267 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
113 | $1 | $5 |
| Acupuncture, initial 15 minutes This procedure involves the insertion of needles into specific points on the body for an initial 15-minute session. |
85 | $37 | $123 |
| Bilateral facial and neck nerve muscle paralysis injection Injection of a chemical agent to paralyze muscles in the face and neck on both sides. |
83 | $124 | $650 |
| 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. |
81 | $152 | $390 |
| EEG, extended monitoring A test that records electrical activity in the brain while the patient is both awake and asleep. |
75 | $466 | $878 |
| Awake and drowsy EEG A test that records electrical activity in the brain while the patient is awake and drowsy. |
66 | $405 | $878 |
| Therapeutic massage, per 15 minutes A therapy procedure involving massage techniques. The code covers each 15-minute increment of the service. |
62 | $31 | $62 |
| Nerve conduction study, 9-10 studies A diagnostic test that measures how well nerves send electrical signals. It involves performing 9 to 10 separate nerve conduction studies to evaluate nerve function. |
60 | $198 | $806 |
| 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. |
51 | $155 | $429 |
| Ketorolac injection, per 15 mg An injection of ketorolac tromethamine, a nonsteroidal anti-inflammatory drug, administered in doses measured per 15 mg. |
29 | $0 | $12 |
| 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. |
19 | $14 | $78 |
| Vestibular function test with thermal irrigation A test that assesses balance by irrigating both ears with warm and cool fluids to evaluate inner ear function. |
18 | $40 | $156 |
| Balance testing with recording A procedure to evaluate balance function by recording the results during testing. |
18 | $108 | $318 |
| Vestibular function test using rotating chair This test evaluates eye movement and balance function by having the patient sit in a rotating chair. It helps assess how the inner ear and brain coordinate to maintain stability. |
18 | $139 | $321 |
| Use of electrodes during balance testing Application of electrodes to monitor physiological responses during a balance assessment. |
18 | $12 | $20 |
| Balance and posture test A test to evaluate a patient's balance and posture. This assessment measures stability and body alignment. |
16 | $47 | $338 |
| Nerve conduction studies, 11-12 A diagnostic test that measures how well nerves send electrical signals. It involves performing 11 to 12 separate nerve conduction studies. |
15 | $248 | $975 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
15 | $107 | $403 |
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 ›
The majority of payments (84%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in neurology and does not inherently indicate bias, but patients may wish to be aware.
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. Wei is a mixed practice specialist, with above-average Medicare volume (top 5% in CA), with speaking/promotional industry engagement in the top 14% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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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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