Dr. Shyamsunder Subramanian, MD
What this data tells you about Dr. Subramanian
Dr. Shyamsunder Subramanian is a critical care medicine specialist in Tracy, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Subramanian performed 46,025 Medicare services across 2,241 unique beneficiaries.
Between the years covered by Open Payments, Dr. Subramanian received a total of $1,327,348 from 44 pharmaceutical and/or device companies across 2036 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in critical care medicine. 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. Subramanian 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 |
|---|---|---|---|
| Tezepelumab injection, 1 mg An injection of tezepelumab-ekko, a medication administered in 1 mg doses. |
22,470 | $7 | $20 |
| Injection, mepolizumab, 1 mg | 17,500 | $15 | $50 |
| Injection, benralizumab, 1 mg | 2,850 | $82 | $258 |
| 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. |
1,111 | $139 | $461 |
| 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. |
380 | $11 | $75 |
| 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. |
290 | $93 | $343 |
| Sleep study with heart rate and breathing monitoring A sleep study that monitors heart rate, breathing, airflow, and physical effort during sleep. |
275 | $74 | $810 |
| Pulmonary gas exchange test A test to examine how well the lungs exchange gases. |
197 | $20 | $121 |
| Spirometry test before and after medication A test that measures the amount of air you can exhale and the speed of your breathing before and after taking a medication. |
195 | $16 | $117 |
| Lung volume test using sensors A test that measures the amount of air in the lungs using sensors. |
189 | $21 | $130 |
| New patient office visit, complex (60-74 min) | 174 | $166 | $656 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
91 | $97 | $345 |
| 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. |
66 | $109 | $521 |
| Exercise-induced lung stress test A test performed to evaluate how the lungs function during physical exertion. It helps identify breathing difficulties or lung conditions that occur specifically when exercising. |
58 | $27 | $141 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
50 | $172 | $902 |
| Sleep study in sleep lab (age 6+) An overnight test conducted in a sleep laboratory to monitor sleep patterns and bodily functions in patients aged 6 years or older. |
40 | $94 | $537 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
31 | $141 | $663 |
| 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. |
20 | $60 | $234 |
| Bronchial irrigation and suction for cell collection This procedure uses an endoscope to flush and suction the lung airways in order to collect cells for testing. |
19 | $102 | $1,270 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
19 | $9 | $215 |
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 (93%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in critical care medicine and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 0% for critical care medicine in CA.
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. Subramanian is a mixed practice specialist, with above-average Medicare volume (top 0% in CA), with speaking/promotional industry engagement in the top 0% of CA peers, with 20 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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