Medicare Enrolled
Dr. Rajeev Narayan, M.D.
Nephrology · San Antonio, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Narayan from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Narayan?
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What this data tells you about Dr. Narayan
Dr. Rajeev Narayan is a nephrology specialist in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Narayan performed 5,382 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Narayan received a total of $46,419 from 26 pharmaceutical and/or device companies across 96 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. Narayan 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.
✓ 19 years of NPI registration
▲ Top 5% volume in TX
$46,419 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗5,382
Medicare services
Top 5% in TX for nephrology
Not available
Unique patients (not deduplicated)
$43
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
4,220 | $0 | $2 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
226 | $61 | $207 |
| 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. |
104 | $89 | $297 |
| 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. |
73 | $73 | $374 |
| Hemodialysis circuit intervention with balloon dilation A procedure to insert a needle or tube into a hemodialysis circuit and dilate the dialysis segment using a balloon, with radiological review. |
59 | $925 | $3,522 |
| 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. |
54 | $39 | $145 |
| Abdominal fluid drainage with imaging guidance Removal of fluid from the abdominal cavity using imaging technology to guide the procedure. |
53 | $223 | $861 |
| 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. |
53 | $70 | $529 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
52 | $99 | $347 |
| 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. |
46 | $17 | $116 |
| Arterial catheter insertion, first order branch Placement of a catheter into a primary branch of an artery in the chest or arm. |
40 | $453 | $3,014 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
40 | $114 | $439 |
| Removal of tunneled central venous tube This procedure involves the removal of a catheter that has been surgically placed under the skin and threaded into a large vein. |
35 | $118 | $481 |
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
32 | $8 | $31 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
29 | $78 | $293 |
| 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. |
28 | $62 | $258 |
| Injection of air or contrast into abdominal cavity A procedure where air or X-ray contrast material is injected into the abdominal cavity to facilitate imaging. |
25 | $96 | $439 |
| Radiologist review of abdominal cavity lining image A radiologist examines and interprets an image of the abdominal cavity lining to assess its condition. |
25 | $56 | $70 |
| Insertion of non-tunneled central venous catheter A procedure to place a central venous catheter for infusion in patients aged 5 years or older. The catheter is inserted directly into a large vein without being tunneled under the skin. |
24 | $63 | $244 |
| Hemodialysis circuit clot removal and vessel dilation This procedure involves removing or dissolving a blood clot within the hemodialysis circuit and using a balloon to widen the dialysis access segment, with imaging review by a radiologist. |
24 | $1,761 | $6,657 |
| Other procedure on abdomen A surgical or medical intervention performed on the abdominal area that does not fall under more specific categories. |
24 | $160 | $399 |
| 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. |
21 | $123 | $575 |
| Needle or tube insertion into hemodialysis circuit with radiologist review A procedure involving the insertion of a needle or tube into a hemodialysis circuit, accompanied by a review of the procedure by a radiologist. |
19 | $454 | $2,061 |
| Abdominal tube insertion with imaging guidance A radiologist uses imaging technology to guide the placement of a tube into the abdomen and reviews the procedure. |
18 | $761 | $2,888 |
| Insertion of tunneled central venous catheter for infusion, age 5+ A surgical procedure to place a long-term catheter into a large vein for delivering medications or fluids. The catheter is tunneled under the skin to reduce infection risk and provide stable access for patients aged 5 and older. |
15 | $606 | $2,431 |
| Ultrasound of hemodialysis access An ultrasound imaging test used to evaluate the blood flow and structure of a hemodialysis access site. |
15 | $94 | $425 |
| Replacement of tunneled central venous tube This procedure involves replacing an existing tunneled central venous catheter with a new one. The new tube is inserted through the same tunnel under the skin to maintain vascular access. |
14 | $575 | $2,274 |
| Hemodialysis, single evaluation A dialysis procedure to filter waste from the blood, performed with a physician's evaluation. |
14 | $53 | $213 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
1.7% high complexity
84.0% medium
14.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$46,419
Total received (2018-2024)
Avg $6,631/year across 7 years
Top 5% in TX for nephrology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
26
Companies
96
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
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.
2024
$4,092
2023
$3,290
2022
$1,225
2021
$11,659
2020
$481
2019
$25,439
2018
$233
Payments by company (2024)
Merit Medical Systems Inc
$3,400
Medtronic, Inc.
$257
OPKO Pharmaceuticals, LLC
$81
Amgen Inc.
$73
Bayer Healthcare Pharmaceuticals Inc.
$46
CorMedix Inc.
$45
Novo Nordisk Inc
$44
Vifor Pharma, Inc.
$41
AKEBIA THERAPEUTICS INC
$27
Aurinia Pharma U.S., Inc.
$27
Novartis Pharmaceuticals Corporation
$22
Travere Therapeutics, Inc.
$16
AstraZeneca Pharmaceuticals LP
$14
Top 3 companies account for 91.3% of 2024 payments
All-time payments by company (2018-2024) ›
GE HEALTHCARE
$24,978
Medtronic, Inc.
$15,869
Merit Medical Systems Inc
$3,400
Avenu Medical Inc.
$418
OPKO Pharmaceuticals, LLC
$285
Vifor Pharma, Inc.
$163
Otsuka America Pharmaceutical, Inc.
$145
Amgen Inc.
$133
NxStage Medical, Inc.
$124
Fresenius USA Marketing, Inc.
$121
Horizon Therapeutics plc
$111
Abbott Laboratories
$105
Medtronic Vascular, Inc.
$94
AstraZeneca Pharmaceuticals LP
$91
Novo Nordisk Inc
$65
Bayer Healthcare Pharmaceuticals Inc.
$46
CorMedix Inc.
$45
Mallinckrodt Enterprises LLC
$40
Shield Therapeutics Inc
$37
Bard Peripheral Vascular, Inc.
$31
AKEBIA THERAPEUTICS INC
$27
Aurinia Pharma U.S., Inc.
$27
Novartis Pharmaceuticals Corporation
$22
Travere Therapeutics, Inc.
$16
W. L. Gore & Associates, Inc.
$13
BARD PERIPHERAL VASCULAR, INC.
$11
Top 3 companies account for 95.3% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · ACTHAR · AMPLATZER Occluders · BRILINTA · COREVALVE EVOLUT R · CoreValve Evolut · DefenCath · ELLIPSYS VASCULAR ACCESS SYSTEM · Ellipsys · Ellipsys System · FARXIGA · Fabhalta · JYNARQUE · KRYSTEXXA · Kerendia · LOKELMA · LUPKYNIS · LUTONIX · NXSTAGE SYSTEM ONE · Ozempic · Peritoneal Dialysis Systems · RAYALDEE · Rayaldee · SAMSCA · TAVNEOS · Tavneos · VIABAHN Endoprosthesis · Vafseo · Velphoro · Veltassa
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Nephrologists in nearby ZIP areas
101
County median income
$70,571
Nearest hospital to ZIP centroid (approximate)
CHILDREN'S HOSPITAL OF SAN ANTONIO
6.1 mi
6.1 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. Narayan is a mixed practice specialist, with above-average Medicare volume (top 5% in TX), 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
Is Dr. Narayan experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Narayan performed 4,220 contrast dye for imaging (iodine-based) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Narayan receive payments from pharmaceutical companies?
Yes. Dr. Narayan received a total of $46,419 from 26 companies across 96 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Narayan's costs compare to other nephrologists in San Antonio?
Dr. Narayan's average Medicare payment per service is $43. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Narayan) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
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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