Medicare Enrolled
Dr. Sherif Ammar, M.D.
Otolaryngology · Riverside, 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. Ammar 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. Ammar
Dr. Sherif Ammar is an otolaryngology specialist in Riverside, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Ammar performed 1,342 Medicare services across 1,225 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ammar received a total of $2,131 from 36 pharmaceutical and/or device companies across 94 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in otolaryngology. 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. Ammar 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.
✓ 20 years in practice
▲ Top 28% volume in CA
$2,131 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,342
Medicare services
Top 28% in CA for otolaryngology
1,225
Unique beneficiaries
$363
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~67 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 (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. |
347 | $69 | $199 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
258 | $88 | $259 |
| Skin graft repair, 10 sq cm or less A surgical procedure to repair a wound by transferring a small piece of skin to the affected area. The graft covers wounds on the face, neck, hands, feet, or other specified body parts. |
133 | $656 | $1,356 |
| Skin graft repair, 10.1-30 sq cm A surgical procedure to repair wounds on the forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin. The graft covers an area between 10.1 and 30.0 square centimeters. |
92 | $772 | $2,056 |
| Skin graft for scalp, arm, or leg wound, 10.1-30 sq cm This procedure involves repairing a wound on the scalp, arms, or legs by transferring skin from another area to cover the defect. The graft size is between 10.1 and 30.0 square centimeters. |
89 | $723 | $2,251 |
| Complicated wound repair, scalp/arms/legs, 2.6-7.5 cm A complex surgical procedure to close a wound on the scalp, arms, or legs that measures between 2.6 and 7.5 centimeters in length. |
86 | $352 | $1,186 |
| Skin graft repair of eyelid, nose, ear, or lip, 10 sq cm or less A surgical procedure to repair a wound on the eyelid, nose, ear, or lip by transferring a small piece of skin. The transferred skin covers an area of 10 square centimeters or less. |
83 | $641 | $1,414 |
| Complicated wound repair of trunk, 2.6-7.5 cm A surgical procedure to close a complex wound on the trunk that measures between 2.6 and 7.5 centimeters in length. |
45 | $320 | $1,269 |
| Skin graft repair, 10 sq cm or less A surgical procedure to repair a wound on the scalp, arms, or legs by transferring a small piece of skin, 10 square centimeters or less, to the affected area. |
37 | $610 | $1,304 |
| Complicated wound repair, 2.6-7.5 cm A complex surgical procedure to close a wound measuring between 2.6 and 7.5 centimeters on areas such as the face, neck, hands, or feet. |
29 | $369 | $1,179 |
| Full thickness skin graft to nose, ears, eyelids, or lips, 20 sq cm or less A surgical procedure where a full layer of skin is taken from a donor site and transplanted to the nose, ears, eyelids, or lips. The graft covers an area of 20 square centimeters or less. |
26 | $871 | $1,541 |
| Flexible laryngoscopy A diagnostic exam of the voice box using a flexible endoscope to visualize the larynx. |
25 | $106 | $411 |
| Skin graft repair of trunk, 10.1-30 sq cm A surgical procedure to repair a wound on the trunk by transferring skin from another area. The graft covers a surface area between 10.1 and 30.0 square centimeters. |
24 | $671 | $2,161 |
| Skin graft repair, 30.1-60.0 sq cm A surgical procedure to repair a wound by transferring skin from one area to another. This code applies to grafts covering an area between 30.1 and 60.0 square centimeters. |
23 | $919 | $2,333 |
| Skin graft repair of eyelid, nose, ear, or lip, 10.1-30 sq cm This procedure involves repairing a wound on the eyelid, nose, ear, or lip by transferring skin from another area. The graft size covered is between 10.1 and 30.0 square centimeters. |
20 | $827 | $2,194 |
| Complex wound repair, 1.1-2.5 cm A surgical procedure to close a complex wound measuring between 1.1 and 2.5 centimeters on areas such as the face, neck, hands, or feet. |
14 | $322 | $932 |
| Full thickness skin graft, 20 sq cm or less A surgical procedure where a full layer of skin is taken from a donor site and transplanted to the scalp, arms, or legs. The graft covers an area of 20 square centimeters or less. |
11 | $305 | $2,454 |
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 ↗$2,131
Total received (2018-2024)
Avg $304/year across 7 years
Top 30% in CA for otolaryngology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
36
Companies
94
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
$2,131 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$470
2023
$576
2022
$249
2021
$29
2020
$206
2019
$317
2018
$283
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Lilly USA, LLC
$87
GlaxoSmithKline, LLC.
$68
Janssen Biotech, Inc.
$36
Blueprint Medicines Corporation
$27
ADC Therapeutics America, Inc.
$25
RECORDATI_RARE_DISEASES_INC.
$24
SUN PHARMACEUTICAL INDUSTRIES INC.
$23
Exelixis Inc.
$22
Biofrontera Inc.
$22
E.R. Squibb & Sons, L.L.C.
$22
UCB, Inc.
$20
Takeda Pharmaceuticals U.S.A., Inc.
$20
Deciphera Pharmaceuticals Inc.
$20
PUMA BIOTECHNOLOGY, INC.
$20
Amgen Inc.
$18
Agios Pharmaceuticals, Inc.
$16
Top 3 companies account for 40.6% of 2024 payments
All-time payments by company (2018-2024) ›
Stryker Corporation
$394
Janssen Biotech, Inc.
$220
Takeda Pharmaceuticals U.S.A., Inc.
$108
AstraZeneca Pharmaceuticals LP
$107
Blueprint Medicines Corporation
$107
Seagen Inc.
$99
Sun Pharmaceutical Industries Inc.
$94
GlaxoSmithKline, LLC.
$91
Lilly USA, LLC
$87
Amgen Inc.
$82
Regeneron Healthcare Solutions, Inc.
$68
Seattle Genetics, Inc.
$66
Puma Biotechnology, Inc.
$51
Helsinn Therapeutics (U.S.), Inc.
$44
Celgene Corporation
$41
E.R. Squibb & Sons, L.L.C.
$39
Exelixis Inc.
$37
Daiichi Sankyo Inc.
$32
Smith+Nephew, Inc.
$30
SOBI, INC
$29
ADC Therapeutics America, Inc.
$25
RECORDATI_RARE_DISEASES_INC.
$24
SUN PHARMACEUTICAL INDUSTRIES INC.
$23
Biofrontera Inc.
$22
GENZYME CORPORATION
$22
EMD Serono, Inc.
$20
UCB, Inc.
$20
Deciphera Pharmaceuticals Inc.
$20
PUMA BIOTECHNOLOGY, INC.
$20
Merck Sharp & Dohme LLC
$18
TESARO, Inc.
$18
Novartis Pharmaceuticals Corporation
$16
Agios Pharmaceuticals, Inc.
$16
DERMIRA, INC.
$15
Spectrum Pharmaceuticals Inc.
$13
INSYS Therapeutics Inc
$12
Top 3 companies account for 33.9% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · ALUNBRIG · AMELUZ · AYVAKIT · Bimzelx · CABOMETYX · DARZALEX · DUPIXENT · Doptelet · ENTELLUS - ENTELLUS MEDICAL SHAVER SYSTEM · ENTELLUS - FIAGON SINUS NAVIGATION SYSTEM CONSUMABLES · ENTELLUS - FOCESS HD WIRELESS CAMERA · ENTELLUS - XPRESS ENT DILATION SYSTEM · ERLEADA · Folotyn · GRAFIX PL · ILUMYA · IMFINZI · INJECTAFER · JADENU · KEYTRUDA · Kyprolis · LEVULAN KERASTICK · LIBTAYO · MVASI · Nerlynx · OJJAARA · OPDIVO · OPDUALAG · Otezla · PICO · PYRUKYND · QBREXZA · QINLOCK · SCOPIS ENT · SYLVANT · SYNDROS · TAGRISSO · TECVAYLI · TEPMETKO · TREMFYA · TUKYSA · Tremfya · VALCHLOR · VERZENIO · YONSA · ZEJULA
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
Otolaryngologists within 10 mi
113
Per 100K population
4.6
County median income
$89,672
Nearest hospital
KAISER FOUNDATION HOSPITAL, RIVERSIDE
0.0 mi
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. Ammar is a clinical cardiology specialist, with above-average Medicare volume (top 28% in CA), with low-engagement industry engagement, 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
Is Dr. Ammar experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Ammar performed 347 office visit, established patient (20-29 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. Ammar receive payments from pharmaceutical companies?
Yes. Dr. Ammar received a total of $2,131 from 36 companies across 94 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. Ammar's costs compare to other otolaryngologists in Riverside?
Dr. Ammar's average Medicare payment per service is $363. 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. Ammar) 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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