Medicare Enrolled
Dr. Ahmad Zarzour, M.D.
Hematology & Oncology · Toledo, OH
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Consulting-driven
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. Zarzour 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. Zarzour
Dr. Ahmad Zarzour is a hematology & oncology specialist in Toledo, OH, with 13 years of NPI registration. Based on federal Medicare data, Dr. Zarzour performed 12,232 Medicare services across 541 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zarzour received a total of $23,407 from 32 pharmaceutical and/or device companies across 114 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zarzour 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.
✓ 13 years in practice
▲ Top 18% volume in OH
$23,407 industry payments
Medicare Practice Summary
Medicare Utilization ↗12,232
Medicare services
Top 18% in OH for hematology & oncology
541
Unique beneficiaries
$13
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~941 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 |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
8,250 | $1 | $3 |
| Pembrolizumab injection (Keytruda) | 2,400 | $36 | $77 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
544 | $0 | $0 |
| 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. |
308 | $94 | $213 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
105 | $90 | $253 |
| 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. |
104 | $56 | $142 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
93 | $21 | $58 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
63 | $53 | $140 |
| 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. |
61 | $11 | $48 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
43 | $47 | $130 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
42 | $15 | $36 |
| 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. |
42 | $92 | $212 |
| 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. |
38 | $136 | $283 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
34 | $21 | $54 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
28 | $1 | $3 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
22 | $11 | $42 |
| 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. |
21 | $99 | $320 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
19 | $2 | $9 |
| 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. |
15 | $82 | $209 |
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.
69.9% high complexity
25.8% medium
4.3% routine
Industry Payment Transparency
Open Payments through 2024 ↗$23,407
Total received (2018-2024)
Avg $3,901/year across 6 years
Top 18% in OH for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
32
Companies
114
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.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$15,500 (66.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$5,479 (23.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$2,428 (10.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$14,999
2023
$1,746
2022
$3,852
2021
$2,430
2019
$282
2018
$99
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Daiichi Sankyo Inc.
$10,009
Sirtex Medical Inc
$2,695
PFIZER INC.
$1,256
Tempus AI, Inc
$246
Pinnacle Biologics, Inc
$125
AstraZeneca Pharmaceuticals LP
$107
Genentech USA, Inc.
$89
Celgene Corporation
$85
Merck Sharp & Dohme LLC
$69
Incyte Corporation
$51
Karyopharm Therapeutics Inc.
$50
Astellas Pharma US Inc
$35
Janssen Biotech, Inc.
$33
GENZYME CORPORATION
$26
Takeda Pharmaceuticals U.S.A., Inc.
$24
E.R. Squibb & Sons, L.L.C.
$23
Eisai Inc.
$23
Gilead Sciences, Inc.
$19
Kite Pharma, Inc.
$18
SpringWorks Therapeutics, Inc.
$15
Top 3 companies account for 93.1% of 2024 payments
All-time payments by company (2018-2024) ›
Daiichi Sankyo Inc.
$12,806
Pharmacosmos Therapeutics Inc.
$4,223
Sirtex Medical Inc
$2,695
PFIZER INC.
$1,256
AstraZeneca Pharmaceuticals LP
$342
Genentech USA, Inc.
$254
Tempus AI, Inc
$246
Merck Sharp & Dohme LLC
$138
Celgene Corporation
$136
E.R. Squibb & Sons, L.L.C.
$125
Pinnacle Biologics, Inc
$125
Takeda Pharmaceuticals U.S.A., Inc.
$116
Bayer HealthCare Pharmaceuticals Inc.
$116
EISAI INC.
$101
Eisai Inc.
$90
Janssen Biotech, Inc.
$85
Seagen Inc.
$79
Incyte Corporation
$76
Astellas Pharma US Inc
$50
Karyopharm Therapeutics Inc.
$50
Gilead Sciences, Inc.
$40
G1 Therapeutics, Inc.
$33
Kite Pharma, Inc.
$32
Amgen Inc.
$32
GENZYME CORPORATION
$26
Dendreon Pharmaceuticals LLC
$24
Novartis Pharmaceuticals Corporation
$22
Adaptive Biotechnologies Corporation
$21
Mirati Therapeutics, Inc.
$19
Lilly USA, LLC
$18
Apellis Pharmaceuticals, Inc.
$17
SpringWorks Therapeutics, Inc.
$15
Top 3 companies account for 84.3% of all-time payments
Associated products mentioned in payments ›
ALUNBRIG · BOSULIF · CALQUENCE · COSELA · Columvi · ENHERTU · ERLEADA · Empaveli · Enhertu · IBRANCE · ICLUSIG · IMFINZI · INJECTAFER · JAKAFI · JAYPIRCA · KEYTRUDA · KISQALI · KRAZATI · LUMAKRAS · LYNPARZA · Lenvima · Lunsumio · MONJUVI · MONOFERRIC · Monoferric · Nplate · OGSIVEO · OPDIVO · OPDUALAG · PADCEV · PEMAZYRE · PROVENGE · Phesgo · Photofrin · Polivy · Pomalyst · REBLOZYL · RYBREVANT · SARCLISA · SIR-Spheres Microspheres · TAGRISSO · TECVAYLI · TUKYSA · Tecentriq · Vitrakvi · XPOVIO · XT CDX · Xtandi · Yescarta · clonoSEQ
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 →
The majority of payments (66%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Geographic Context
Hematology & oncology specialists within 10 mi
20
Per 100K population
4.7
County median income
$60,095
Nearest hospital
PROMEDICA TOLEDO HOSPITAL
2.9 mi
2.9 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. Zarzour is a mixed practice specialist, with above-average Medicare volume (top 18% in OH), with consulting-driven industry engagement in the top 18% of OH peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Zarzour experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Zarzour performed 8,250 iron infusion (injectafer) 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. Zarzour receive payments from pharmaceutical companies?
Yes. Dr. Zarzour received a total of $23,407 from 32 companies across 114 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. Zarzour's costs compare to other hematology & oncology specialists in Toledo?
Dr. Zarzour's average Medicare payment per service is $13. 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. Zarzour) 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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