Medicare Enrolled

Dr. Johan Winoto, M.D.

Nephrology · Elk Grove, CA
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
2218 KAUSEN DR STE 103, Elk Grove, CA 95758
9166838774
In practice since 2006 (19 years)
NPI: 1780635920 verify on NPPES ↗
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. Winoto 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 →
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What this data tells you about Dr. Winoto

Dr. Johan Winoto is a nephrology specialist in Elk Grove, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Winoto performed 1,142 Medicare services across 473 unique beneficiaries.

Between the years covered by Open Payments, Dr. Winoto received a total of $188 from 3 pharmaceutical and/or device companies across 3 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in nephrology. 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. Winoto 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 in practice ▲ 1,142 Medicare services $188 industry payments

Medicare Practice Summary

Medicare Utilization ↗
1,142
Medicare services
Bottom 45% in CA for nephrology
473
Unique beneficiaries
$147
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~60 Medicare services per year of practice

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
Dialysis services for adults, 2-3 visits per month
This code covers dialysis services for patients aged 20 or older who have 2 to 3 physician visits per month.
514 $235 $500
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.
280 $73 $230
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.
180 $65 $151
Monthly dialysis physician visit
A monthly doctor's visit for patients aged 20 or older who are receiving dialysis treatment.
49 $170 $388
Telephone medical discussion, 21-30 minutes
A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone.
49 $55 $230
Telephone medical discussion, 11-20 minutes
A phone conversation with a physician lasting between 11 and 20 minutes.
28 $28 $157
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.
22 $62 $157
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.
20 $115 $344
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. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$188
Total received (2019-2024)
Avg $63/year across 3 years
Bottom 21% in CA for nephrology
3
Companies
3
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$115 (61.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$73 (38.6%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$14
2021
$73
2019
$102

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Ardelyx, Inc.
$14
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2019-2024) ›
BAXTER HEALTHCARE
$102
Mallinckrodt Hospital Products Inc.
$73
Ardelyx, Inc.
$14
Top 3 companies account for 100.0% of all-time payments
Associated products mentioned in payments ›
ACTHAR · IBSRELA · Renal - PD
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. 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 →

Most payments (61%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for a nephrology specialist in Elk Grove?
Compare nephrologists in the Elk Grove area by procedure volume, costs, and industry payment transparency.
Browse nephrologists nearby

Geographic Context

Nephrologists within 10 mi
56
Per 100K population
3.5
County median income
$88,724
Nearest hospital
METHODIST HOSPITAL OF SACRAMENTO
3.1 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. Winoto is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement, 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. Winoto experienced with dialysis services for adults, 2-3 visits per month?
Based on Medicare claims data, Dr. Winoto performed 514 dialysis services for adults, 2-3 visits per month services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Winoto receive payments from pharmaceutical companies?
Yes. Dr. Winoto received a total of $188 from 3 companies across 3 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. 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. Winoto's costs compare to other nephrologists in Elk Grove?
Dr. Winoto's average Medicare payment per service is $147. 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. Winoto) 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 a long track record of practice, Medicare participation, and industry disclosure. 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?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

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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Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →