Medicare Enrolled
Dr. Allyson Harroff, M.D.
Medical Oncology · San Antonio, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Harroff 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. Harroff
Dr. Allyson Harroff is a medical oncology specialist in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Harroff performed 34,871 Medicare services across 2,052 unique beneficiaries.
Between the years covered by Open Payments, Dr. Harroff received a total of $1,512 from 17 pharmaceutical and/or device companies across 24 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in medical oncology. 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. Harroff is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 25% volume in TX
$1,512 industry payments
Medicare Practice Summary
Medicare Utilization ↗34,871
Medicare services
Top 25% in TX for medical oncology
2,052
Unique beneficiaries
$8
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~1,835 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 sucrose injection (Venofer) An injection of iron sucrose used to replenish iron levels in the body. |
9,700 | $0 | $2 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
7,992 | $0 | $3 |
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
6,750 | $0 | $5 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
2,070 | $0 | $1 |
| Denosumab injection (Prolia/Xgeva) | 1,260 | $18 | $66 |
| Injection, granisetron hydrochloride, 100 mcg | 960 | $0 | $24 |
| Anti-nausea injection (Aloxi/palonosetron) | 680 | $1 | $114 |
| 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. |
662 | $8 | $36 |
| 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. |
621 | $60 | $250 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
616 | $8 | $20 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
577 | $10 | $64 |
| Flow cytometry, additional marker An additional marker is tested during a flow cytometry procedure to analyze DNA or cells. This step adds specific data points to the initial analysis. |
317 | $18 | $180 |
| 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. |
312 | $21 | $157 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
263 | $94 | $707 |
| Intensity-modulated radiation therapy delivery Delivery of radiation therapy using narrow beams that are spatially and temporally modulated to target specific areas. This process is performed per treatment session. |
142 | $269 | $2,762 |
| Carcinoembryonic antigen (CEA) level test A blood test that measures the level of carcinoembryonic antigen (CEA) protein. This test is used to monitor certain types of cancer. |
139 | $18 | $99 |
| Radiation therapy, 3+ areas, 11-19 MeV Delivery of high-energy radiation (11-19 MeV) to three or more separate treatment areas using custom blocking, tangential ports, wedges, rotational beams, and compensators. |
119 | $176 | $700 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
119 | $7 | $431 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
114 | $9 | $56 |
| 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. |
104 | $46 | $313 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
98 | $54 | $211 |
| Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 | 94 | $20 | $128 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
86 | $1 | $7 |
| 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. |
83 | $10 | $96 |
| Immunoglobulin light chain measurement A blood test that measures the levels of immunoglobulin light chains, which are proteins produced by plasma cells. |
80 | $17 | $60 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
75 | $47 | $821 |
| Intravenous infusion of new drug or substance, 1 hour or less This procedure involves administering a new medication or substance directly into a vein through an existing access site. The infusion is completed within one hour or less. |
74 | $49 | $344 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
65 | $13 | $60 |
| Iron level test | 65 | $6 | $27 |
| 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. |
65 | $9 | $35 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
61 | $164 | $1,067 |
| 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. |
52 | $2 | $19 |
| Manual white blood cell count A laboratory test that involves examining a sample under a microscope to manually count the number of white blood cells present. |
45 | $4 | $22 |
| Complete blood count (CBC), automated An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood. |
45 | $6 | $34 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
44 | $4 | $30 |
| 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. |
43 | $96 | $368 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
37 | $10 | $75 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
36 | $6 | $31 |
| Reticulated platelet measurement A blood test that measures the level of young, newly formed platelets in the body. |
35 | $35 | $143 |
| New patient office visit, complex (60-74 min) | 32 | $164 | $709 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 30 | $89 | $657 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
28 | $1,099 | $4,802 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
27 | $16 | $80 |
| 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. |
24 | $101 | $565 |
| Serum protein measurement A blood test that measures the total amount of protein in the serum. It helps evaluate overall health and nutritional status. |
18 | $11 | $99 |
| Flow cytometry DNA or cell analysis, first marker A laboratory test that uses a laser to analyze cells or DNA by detecting a specific marker on the cell surface or within the cell. |
12 | $56 | $298 |
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.
2.3% high complexity
86.7% medium
11.0% routine
Industry Payment Transparency
Open Payments through 2024 ↗$1,512
Total received (2018-2024)
Avg $216/year across 7 years
Bottom 34% in TX for medical oncology
17
Companies
24
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
$1,473 (97.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$39 (2.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$382
2023
$281
2022
$353
2021
$12
2020
$126
2019
$244
2018
$114
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Takeda Pharmaceuticals U.S.A., Inc.
$216
Gilead Sciences, Inc.
$145
EMD Serono, Inc.
$126
Genmab U.S., Inc.
$125
Bayer Healthcare Pharmaceuticals Inc.
$125
G1 Therapeutics, Inc.
$125
Janssen Biotech, Inc.
$125
Merck Sharp & Dohme LLC
$112
Amgen Inc.
$109
Incyte Corporation
$100
Lilly USA, LLC
$73
Novartis Pharmaceuticals Corporation
$60
Regeneron Healthcare Solutions, Inc.
$17
Tactile Systems Technology Inc
$16
AstraZeneca Pharmaceuticals LP
$14
Merck Sharp & Dohme Corporation
$14
Clovis Oncology, Inc.
$10
Top 3 companies account for 32.2% of total payments
Associated products mentioned in payments ›
Bavencio · COSELA · DARZALEX · ENHERTU · EXKIVITY · Epkinly · FRUZAQLA · Flexitouch Plus · KEYTRUDA · LIBTAYO · LYNPARZA · Nubeqa · RETEVMO · Rubraca · SCEMBLIX · TASIGNA · Trodelvy · Vectibix
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 (97%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Equivalent to $4 per 100 Medicare services performed
Geographic Context
Medical oncologists within 10 mi
37
Per 100K population
1.8
County median income
$70,571
Nearest hospital
BAPTIST NEIGHBORHOOD HOSPITAL THOUSAND OAKS
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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Harroff is a mixed practice specialist, with above-average Medicare volume (top 25% in TX), with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Harroff experienced with iron sucrose injection (venofer)?
Based on Medicare claims data, Dr. Harroff performed 9,700 iron sucrose injection (venofer) 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. Harroff receive payments from pharmaceutical companies?
Yes. Dr. Harroff received a total of $1,512 from 17 companies across 24 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. Harroff's costs compare to other medical oncologists in San Antonio?
Dr. Harroff's average Medicare payment per service is $8. 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. Harroff) 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. The Transparency Score measures 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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