Medicare Enrolled
Dr. Homayoun Siman, MD
Dermatology · Palm Desert, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Siman 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. Siman
Dr. Homayoun Siman is a dermatology specialist in Palm Desert, CA, with 12 years of NPI registration. Based on federal Medicare data, Dr. Siman performed 11,243 Medicare services across 4,949 unique beneficiaries.
Between the years covered by Open Payments, Dr. Siman received a total of $3,181 from 29 pharmaceutical and/or device companies across 167 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in dermatology. 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. Siman 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.
✓ 12 years in practice
▲ Top 4% volume in CA
$3,181 industry payments
Medicare Practice Summary
Medicare Utilization ↗11,243
Medicare services
Top 4% in CA for dermatology
4,949
Unique beneficiaries
$34
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~937 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 |
|---|---|---|---|
| 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. |
1,577 | $97 | $339 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
1,077 | $0 | $11 |
| Ketorolac injection, per 15 mg An injection of ketorolac tromethamine, a nonsteroidal anti-inflammatory drug, administered in doses measured per 15 mg. |
1,065 | $0 | $12 |
| Denosumab injection (Prolia/Xgeva) | 960 | $18 | $62 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
926 | $18 | $72 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
857 | $8 | $20 |
| Lidocaine HCl injection for IV infusion, 10 mg Administration of a 10 mg dose of lidocaine hydrochloride via intravenous infusion. |
355 | $0 | $11 |
| 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. |
345 | $11 | $49 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
334 | $46 | $156 |
| 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. |
277 | $66 | $241 |
| Methylprednisolone acetate injection, 80 mg An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication. |
267 | $9 | $44 |
| Obesity behavioral counseling, 15 minutes A 15-minute face-to-face session focused on behavioral counseling to help manage obesity. |
258 | $26 | $69 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
201 | $1 | $15 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
185 | $48 | $156 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
163 | $78 | $266 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
157 | $1 | $18 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
156 | $11 | $39 |
| Electrocardiogram, 1-3 leads with physician review A heart rhythm test using one to three electrodes to record electrical activity, with interpretation by a physician. |
155 | $10 | $33 |
| Expiratory airflow and volume test A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume. |
155 | $22 | $72 |
| Substance misuse assessment and brief intervention A structured assessment of alcohol or substance misuse combined with a brief intervention lasting 15 to 30 minutes. |
148 | $28 | $92 |
| Annual alcohol misuse screening, 5 to 15 minutes | 142 | $19 | $50 |
| Annual depression screening | 140 | $19 | $49 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
134 | $133 | $347 |
| Influenza virus detection test A laboratory test that uses an immunoassay technique to detect the presence of the influenza virus through direct visual observation. |
85 | $16 | $41 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
82 | $210 | $738 |
| Lower back and sciatic nerve injection An injection of an anesthetic and/or steroid medication into the lower back and sciatic nerve. This procedure delivers medication directly to the nerve site. |
80 | $137 | $348 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
66 | $44 | $145 |
| Quadrivalent influenza vaccine, cell-culture derived A flu shot containing four strains of influenza virus, produced using cell culture technology rather than eggs. This formulation is free from preservatives and antibiotics. |
64 | $33 | $90 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
64 | $32 | $72 |
| New patient office visit, complex (60-74 min) | 59 | $160 | $583 |
| 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. |
57 | $135 | $478 |
| Injection of anesthetic or steroid into sacroiliac joint with imaging guidance This procedure involves injecting an anesthetic or steroid medication into the joint connecting the lower spine and hip bone. Imaging guidance is used to ensure accurate placement of the injection. |
54 | $156 | $439 |
| COVID-19 immunoassay detection test A laboratory test that uses an immunoassay method to detect the presence of severe acute respiratory syndrome coronavirus 2 (COVID-19) through direct visual observation. |
54 | $41 | $104 |
| Injection, methylprednisolone acetate, 40 mg | 54 | $6 | $24 |
| Blood pressure self-monitoring education Training on how to measure your own blood pressure at home. This service teaches the proper technique for using a home blood pressure monitor. |
52 | $10 | $31 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
47 | $32 | $50 |
| Pneumococcal vaccine, 23-valent A vaccine that protects against 23 types of pneumococcal bacteria. It is used to prevent infections caused by these bacteria. |
46 | $131 | $344 |
| Trigger point injection, 1-2 muscles A procedure involving the injection of medication into one or two specific muscles to treat trigger points. |
38 | $36 | $143 |
| Tendon injection at attachment site A procedure involving the injection of medication into a tendon where it attaches to bone or muscle. |
35 | $28 | $155 |
| Injection, adrenalin, epinephrine, 0.1 mg | 35 | $1 | $13 |
| Tendon or ligament injection A procedure involving the injection of medication into a tendon or ligament. |
31 | $35 | $153 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
31 | $36 | $126 |
| Smoking cessation counseling, more than 10 minutes Intensive counseling session focused on helping patients quit smoking and tobacco use, lasting more than 10 minutes. |
26 | $28 | $74 |
| Annual intensive behavioral therapy for cardiovascular disease, 15 minutes A yearly, in-person session focused on intensive behavioral therapy to help manage cardiovascular disease. The session lasts for 15 minutes and is conducted with the patient individually. |
26 | $26 | $70 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
24 | $15 | $40 |
| Suprascapular nerve injection An injection of anesthetic and/or steroid medication into the suprascapular nerve in the shoulder area. |
23 | $37 | $244 |
| Injection into skin growths, 1-7 A procedure involving the injection of medication into one to seven skin growths. |
21 | $26 | $153 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
19 | $3 | $9 |
| 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. |
18 | $128 | $442 |
| Brief behavioral counseling for alcohol misuse, 15 minutes A 15-minute face-to-face counseling session focused on addressing alcohol misuse. The service involves direct interaction with the patient to provide behavioral guidance. |
18 | $25 | $69 |
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.
3.2% high complexity
42.6% medium
54.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$3,181
Total received (2018-2024)
Avg $454/year across 7 years
Top 12% in CA for dermatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
29
Companies
167
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
$3,181 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$419
2023
$727
2022
$466
2021
$553
2020
$324
2019
$283
2018
$408
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
SHIELD THERAPEUTICS INC
$60
AstraZeneca Pharmaceuticals LP
$58
Janssen Pharmaceuticals, Inc
$48
Bayer Healthcare Pharmaceuticals Inc.
$47
IDORSIA PHARMACEUTICALS US INC
$44
Amgen Inc.
$42
Novo Nordisk Inc
$38
ABBVIE INC.
$30
Antares Pharma, Inc.
$30
PFIZER INC.
$21
Top 3 companies account for 39.8% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$401
Novo Nordisk Inc
$372
PFIZER INC.
$292
AstraZeneca Pharmaceuticals LP
$278
Merck Sharp & Dohme Corporation
$235
Janssen Pharmaceuticals, Inc
$216
Amarin Pharma Inc.
$190
IDORSIA PHARMACEUTICALS US INC
$155
Lilly USA, LLC
$115
E.R. Squibb & Sons, L.L.C.
$107
Boehringer Ingelheim Pharmaceuticals, Inc.
$82
Esperion Therapeutics, Inc.
$80
Sanofi Pasteur Inc.
$77
Bayer Healthcare Pharmaceuticals Inc.
$76
Bayer HealthCare Pharmaceuticals Inc.
$71
SHIELD THERAPEUTICS INC
$60
AbbVie Inc.
$60
Kowa Pharmaceuticals America, Inc.
$58
ABBVIE INC.
$30
Antares Pharma, Inc.
$30
Abbott Laboratories
$29
Meridian Bioscience Inc.
$28
Biohaven Pharmaceutical Holding Company Ltd.
$26
SI-BONE, Inc.
$24
SANOFI PASTEUR INC.
$22
Supernus Pharmaceuticals, Inc.
$21
SANOFI-AVENTIS U.S. LLC
$19
Daiichi Sankyo Inc.
$14
Medtronic, Inc.
$12
Top 3 companies account for 33.5% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · AIRSUPRA · Aimovig · CHANTIX · ELIQUIS · EMGALITY · EVENITY · FARXIGA · FLUZONE HIGH-DOSE · FREESTYLE LIBRE 3 · INJECTAFER · INTELLIS · JANUVIA · JARDIANCE · Kerendia · LINZESS · LYRICA · Livalo · MOUNJARO · NEXLETOL · NURTEC ODT · Otezla · Ozempic · PRALUENT · Prolia · QUVIVIQ · RYBELSUS · Repatha · Rybelsus · STEGLATRO · SYNTHROID · TLANDO · TRULICITY · UBRELVY · VAXELIS · VRAYLAR · Vascepa · Wegovy · XARELTO · XYOSTED
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Dermatologists within 10 mi
23
Per 100K population
0.9
County median income
$89,672
Nearest hospital
EISENHOWER MEDICAL CENTER
4.8 mi
4.8 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. Siman is a clinical cardiology specialist, with above-average Medicare volume (top 4% in CA), with low-engagement industry engagement in the top 12% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Siman experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Siman performed 1,577 office visit, established patient (30-39 min) 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. Siman receive payments from pharmaceutical companies?
Yes. Dr. Siman received a total of $3,181 from 29 companies across 167 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. Siman's costs compare to other dermatologists in Palm Desert?
Dr. Siman's average Medicare payment per service is $34. 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. Siman) 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 →
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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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