Medicare Enrolled

Dr. Steve Tran, MD

Nephrology · Mission Viejo, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
26800 CROWN VALLEY PKWY, Mission Viejo, CA 92691
9493640644
Registered in NPPES since 2006
NPI: 1487722732 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. Tran 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. Tran

Dr. Steve Tran is a nephrology specialist in Mission Viejo, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Tran performed 11,038 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Tran received a total of $6,267 from 30 pharmaceutical and/or device companies across 278 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. Tran 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 3% volume in CA $6,267 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
11,038
Medicare services
Top 3% in CA for nephrology
Not available
Unique patients (not deduplicated)
$28
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
Darbepoetin injection (Aranesp) for anemia
An injection of darbepoetin alfa used for non-end-stage renal disease purposes.
6,440 $2 $19
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.
495 $100 $266
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.
477 $105 $345
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.
306 $71 $245
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.
293 $66 $185
Blood draw (venipuncture)
Insertion of a needle into a vein to collect a blood sample.
281 $8 $13
Complete blood count (CBC) with differential
An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells.
241 $8 $43
Urinalysis with microscopic exam
A urine test performed manually that includes examining the sample under a microscope to check for abnormalities.
212 $3 $13
Urine microalbumin test (kidney screening)
A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage.
202 $6 $39
Creatinine test (kidney function)
A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury.
200 $5 $18
Phosphate level test
A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong.
191 $5 $15
Dialysis services for patients 20 or older
Dialysis treatment provided to patients aged 20 years or older, involving four or more physician visits per month.
180 $298 $944
Parathyroid hormone level test
A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones.
170 $40 $104
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.
154 $244 $782
Basic metabolic blood panel
A blood test that measures a group of basic chemicals, including total calcium levels.
143 $8 $24
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.
124 $142 $514
Iron level test 121 $6 $17
Iron binding capacity test
A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron.
121 $9 $20
Hemoglobin A1c test (diabetes monitoring)
A blood test that measures your average blood sugar levels over the past two to three months.
119 $10 $32
Ferritin level test (iron stores)
A blood test that measures the level of ferritin, a protein that stores iron in the body.
114 $13 $42
Comprehensive metabolic blood panel
A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers.
86 $10 $32
Uric acid level test
A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines.
47 $4 $15
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.
40 $12 $39
New patient office visit, complex (60-74 min) 39 $182 $591
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.
35 $108 $350
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.
33 $143 $447
Telephone medical discussion, 11-20 minutes
A phone conversation with a physician lasting between 11 and 20 minutes.
31 $64 $245
Hospital follow-up visit, low complexity
Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service.
30 $41 $100
Urine total protein level
A laboratory test that measures the total amount of protein present in a urine sample.
23 $4 $10
Lipid panel (cholesterol and triglycerides)
A blood test that measures cholesterol and triglyceride levels.
22 $13 $43
Complement and antigen measurement
A laboratory test to measure levels of complement proteins and antigens in the blood.
22 $12 $55
Magnesium level test
A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess.
17 $7 $17
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.
16 $102 $345
Thyroid stimulating hormone (TSH) test
A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function.
13 $16 $48
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.

Industry Payment Transparency

Open Payments through 2024 ↗
$6,267
Total received (2018-2024)
Avg $895/year across 7 years
Top 15% in CA for nephrology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
30
Companies
278
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
$1,360
2023
$1,109
2022
$986
2021
$677
2020
$583
2019
$981
2018
$571

Payments by company (2024)

ABIOMED
$225
AstraZeneca Pharmaceuticals LP
$202
Vifor Pharma, Inc.
$197
Bayer Healthcare Pharmaceuticals Inc.
$171
Boehringer Ingelheim Pharmaceuticals, Inc.
$105
Fresenius USA Marketing, Inc.
$83
AKEBIA THERAPEUTICS INC
$80
Amgen Inc.
$78
Otsuka America Pharmaceutical, Inc.
$45
Novo Nordisk Inc
$44
Inari Medical, Inc.
$33
Novartis Pharmaceuticals Corporation
$33
Kyowa Kirin, Inc.
$27
CALLIDITAS THERAPEUTICS US INC.
$22
OPKO Pharmaceuticals, LLC
$16
Top 3 companies account for 45.9% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$919
Vifor Pharma, Inc.
$633
Fresenius USA Marketing, Inc.
$626
Amgen Inc.
$625
Otsuka America Pharmaceutical, Inc.
$463
AKEBIA THERAPEUTICS INC
$426
Bayer HealthCare Pharmaceuticals Inc.
$361
Bayer Healthcare Pharmaceuticals Inc.
$320
Ironwood Pharmaceuticals, Inc
$250
ABIOMED
$225
Daiichi Sankyo Inc.
$203
GlaxoSmithKline, LLC.
$172
Relypsa, Inc.
$135
BAXTER HEALTHCARE
$120
Bard Peripheral Vascular, Inc.
$118
Lilly USA, LLC
$108
Boehringer Ingelheim Pharmaceuticals, Inc.
$105
Novartis Pharmaceuticals Corporation
$78
OPKO Pharmaceuticals, LLC
$62
CALLIDITAS THERAPEUTICS US INC.
$56
Novo Nordisk Inc
$44
Aurinia Pharma U.S., Inc.
$38
Horizon Therapeutics plc
$37
Inari Medical, Inc.
$33
Kyowa Kirin, Inc.
$27
Keryx Biopharmaceuticals, Inc.
$21
Janssen Pharmaceuticals, Inc
$20
GENZYME CORPORATION
$19
Alexion Pharmaceuticals, Inc.
$14
Boston Scientific Corporation
$13
Top 3 companies account for 34.8% of all-time payments
Associated products mentioned in payments ›
AURYXIA · Aranesp · Auryxia · BENLYSTA · BRILINTA · DUZALLO · FABRAZYME · FARXIGA · FLOWTRIEVER CATHETER · INJECTAFER · Impella · JARDIANCE · JYNARQUE · KRYSTEXXA · Kerendia · Korsuva · LOKELMA · LUPKYNIS · Linzess · Not Product Related · Ozempic · Parsabiv · RAYALDEE · Rayaldee · Renal - PD · S · SOLIRIS · TALTZ · TARPEYO · Vafseo · Velphoro · Veltassa · WATCHMAN Access System · WavelinQ · XARELTO
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 →
Looking for a nephrology specialist in Mission Viejo?
Compare nephrologists in the Mission Viejo area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Nephrologists in nearby ZIP areas
113
County median income
$113,702
Nearest hospital to ZIP centroid (approximate)
PROVIDENCE MISSION HOSPITAL
0.0 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. Tran is a mixed practice specialist, with above-average Medicare volume (top 3% in CA), 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. Tran experienced with darbepoetin injection (aranesp) for anemia?
Based on Medicare claims data, Dr. Tran performed 6,440 darbepoetin injection (aranesp) for anemia 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. Tran receive payments from pharmaceutical companies?
Yes. Dr. Tran received a total of $6,267 from 30 companies across 278 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. Tran's costs compare to other nephrologists in Mission Viejo?
Dr. Tran's average Medicare payment per service is $28. 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. Tran) 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 →
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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

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. Industry payment disclosure alone establishes neither wrongdoing nor legality. 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 →