Dr. Gerardo Zavala, MD
What this data tells you about Dr. Zavala
Dr. Gerardo Zavala is a neurological surgery specialist in San Antonio, TX, with 18 years of NPI registration. Based on federal Medicare data, Dr. Zavala performed 2,749 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Zavala received a total of $2,270 from 12 pharmaceutical and/or device companies across 27 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zavala 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 — 2023
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 |
|---|---|---|---|
| Physical therapy exercise, per 15 min A therapy session using exercises to improve strength, endurance, range of motion, and flexibility. Each 15-minute unit is billed separately. |
1,066 | $18 | $60 |
| 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. |
298 | $72 | $400 |
| 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. |
233 | $94 | $250 |
| 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. |
147 | $62 | $176 |
| Functional activity therapy A therapy procedure that utilizes functional activities as part of the treatment process. |
132 | $28 | $80 |
| 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. |
116 | $152 | $903 |
| Spinal fusion of additional segment A surgical procedure to join an additional section of the spine to the existing fusion. This is performed as a separate or subsequent step to stabilize more of the spinal column. |
89 | $272 | $2,195 |
| 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. |
86 | $113 | $300 |
| Partial removal of spine bone with nerve release, each additional segment This procedure involves the partial removal of spinal bone to relieve pressure on the spinal cord or nerves. It is billed for each additional spinal segment treated beyond the initial segment. |
71 | $145 | $1,176 |
| X-ray of lower and sacral spine, minimum of 4 views An X-ray imaging test of the lower back and sacrum using at least four different angles to visualize the bones and joints. |
51 | $38 | $280 |
| 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. |
50 | $26 | $78 |
| X-ray of lower and sacral spine, 2-3 views with bending An X-ray imaging test of the lower back and sacrum using 2 to 3 views, including bending positions. |
50 | $27 | $80 |
| X-ray of upper spine, 4-5 views An X-ray imaging test of the upper spine using 4 to 5 different views to visualize the bones and structures in that area. |
46 | $39 | $104 |
| Evaluation for physical therapy, typically 45 minutes | 41 | $69 | $160 |
| 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. |
37 | $36 | $100 |
| Manual therapy (hands-on treatment), per 15 min | 31 | $16 | $60 |
| Evaluation for physical therapy, typically 30 minutes | 31 | $67 | $160 |
| Ultrasound therapy, each 15 minutes Application of ultrasound waves to tissue for therapeutic purposes. The procedure is billed in 15-minute increments. |
28 | $8 | $40 |
| Partial removal of spine bone with nerve release, 1 segment A surgical procedure involving the partial removal of a bone segment in the spine to relieve pressure on the spinal cord or nerves. This is performed on a single spinal segment. |
25 | $448 | $6,081 |
| Electrical stimulation therapy Application of electrical stimulation to one or more body areas as part of a therapy plan. This procedure is used for indications other than wound care. |
22 | $7 | $40 |
| Fusion of spine in lower back | 19 | $1,033 | $8,724 |
| Spine fusion with cage or mesh device insertion A surgical procedure to fuse spine bones by inserting a cage or mesh device into the disc space. |
18 | $193 | $1,350 |
| Trabecular bone score calculation This procedure calculates the trabecular bone score using imaging data to assess bone microarchitecture. It includes interpretation and a report on fracture risk. |
18 | $31 | $80 |
| Spinal stabilization device placement, 3-6 segments Surgical placement of a device to stabilize three to six vertebrae in the back. |
17 | $541 | $4,122 |
| Nerve conduction studies, 13 or more A diagnostic test that measures how well nerves send electrical signals. This code applies when 13 or more individual nerve studies are performed. |
16 | $207 | $1,000 |
| Re-evaluation for physical therapy, typically 20 minutes | 11 | $47 | $120 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
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 ›
Geographic Context
3.1 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Zavala is a clinical cardiology specialist, with above-average Medicare volume (top 2% in TX), with 18 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. Zavala experienced with physical therapy exercise, per 15 min?
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This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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