Medicare Enrolled
Dr. David Palchak, M.D.
Hematology & Oncology · Arroyo Grande, CA
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. Palchak 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. Palchak
Dr. David Palchak is a hematology & oncology specialist in Arroyo Grande, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Palchak performed 16,543 Medicare services across 957 unique beneficiaries.
Between the years covered by Open Payments, Dr. Palchak received a total of $6,076 from 31 pharmaceutical and/or device companies across 133 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & 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. Palchak 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 in practice
▲ Top 25% volume in CA
$6,076 industry payments
Medicare Practice Summary
Medicare Utilization ↗16,543
Medicare services
Top 25% in CA for hematology & oncology
957
Unique beneficiaries
$15
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~871 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 |
|---|---|---|---|
| Anti-nausea injection (fosaprepitant) An injection of fosaprepitant, a medication used to prevent nausea and vomiting. |
9,300 | $0 | $0 |
| Denosumab injection (Prolia/Xgeva) | 2,220 | $19 | $24 |
| 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. |
1,052 | $96 | $131 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
770 | $0 | $0 |
| Injection, granisetron hydrochloride, 100 mcg | 711 | $0 | $0 |
| Anti-nausea injection (Aloxi/palonosetron) | 603 | $1 | $1 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
282 | $111 | $141 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
215 | $13 | $16 |
| 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. |
211 | $45 | $59 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
188 | $18 | $25 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
157 | $69 | $93 |
| 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. |
142 | $11 | $15 |
| 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. |
115 | $25 | $31 |
| 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. |
98 | $61 | $93 |
| 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. |
85 | $55 | $69 |
| 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. |
84 | $141 | $183 |
| 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. |
73 | $11 | $14 |
| 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. |
62 | $54 | $69 |
| Intravenous hydration infusion, 31-60 minutes Administration of fluids into a vein to maintain hydration. This procedure involves an infusion lasting between 31 and 60 minutes. |
44 | $28 | $35 |
| 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. |
37 | $99 | $131 |
| 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 | $24 | $30 |
| 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. |
31 | $120 | $170 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
16 | $25 | $25 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
13 | $76 | $77 |
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.
3.6% high complexity
84.6% medium
11.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$6,076
Total received (2018-2024)
Avg $868/year across 7 years
Top 40% in CA for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
31
Companies
133
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
$4,172 (68.7%)
Other
Charitable contributions, space rental, and other categories
$1,522 (25.0%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$382 (6.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$353
2023
$371
2022
$538
2021
$1,150
2020
$459
2019
$795
2018
$2,410
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Eisai Inc.
$77
ABBVIE INC.
$75
Merck Sharp & Dohme LLC
$33
Daiichi Sankyo Inc.
$27
EMD Serono, Inc.
$23
PFIZER INC.
$22
Agios Pharmaceuticals, Inc.
$22
Amneal Pharmaceuticals LLC
$22
SOBI, INC
$18
Janssen Biotech, Inc.
$17
Mirati Therapeutics, Inc.
$16
Top 3 companies account for 52.5% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$4,247
Boehringer Ingelheim Pharmaceuticals, Inc.
$295
Seagen Inc.
$214
Pharmacyclics LLC, An AbbVie Company
$186
NOVARTIS PHARMACEUTICALS CORPORATION
$167
Takeda Pharmaceuticals U.S.A., Inc.
$156
Eisai Inc.
$113
ABBVIE INC.
$94
Janssen Biotech, Inc.
$84
PFIZER INC.
$56
SECURA BIO, INC.
$44
Rigel Pharmaceuticals, Inc.
$40
Seattle Genetics, Inc.
$38
Merck Sharp & Dohme LLC
$33
Daiichi Sankyo Inc.
$27
ADC Therapeutics America, Inc.
$24
EMD Serono, Inc.
$23
Agios Pharmaceuticals, Inc.
$22
Foundation Medicine, Inc.
$22
Amneal Pharmaceuticals LLC
$22
E.R. Squibb & Sons, L.L.C.
$22
Secura Bio, Inc.
$19
SOBI, INC
$18
Heron Therapeutics, Inc.
$18
Ipsen Biopharmaceuticals, Inc
$16
Mirati Therapeutics, Inc.
$16
Genentech USA, Inc.
$15
Celgene Corporation
$14
GlaxoSmithKline, LLC.
$14
Gilead Sciences, Inc.
$11
Merck Sharp & Dohme Corporation
$8
Top 3 companies account for 78.3% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · AVASTIN · BLENREP · CINVANTI · COPIKTRA · DARZALEX · DOPTELET · ELREXFIO · Enhertu · FOUNDATIONONE · GILOTRIF · ICLUSIG · IMBRUVICA · Imbruvica · KEYTRUDA · KISQALI · KRAZATI · LORBRENA · Lenvima · MEKINIST · NINLARO · OPDIVO · Onivyde · PADCEV · PYRUKYND · REBLOZYL · TECENTRIQ · Tavalisse · Trodelvy · VELCADE · VENCLEXTA
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 (69%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
15
Per 100K population
5.3
County median income
$93,398
Nearest hospital
FRENCH HOSPITAL MEDICAL CENTER
8.9 mi
8.9 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. Palchak is a mixed practice specialist, with above-average Medicare volume (top 25% in CA), with low-engagement industry engagement, 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. Palchak experienced with anti-nausea injection (fosaprepitant)?
Based on Medicare claims data, Dr. Palchak performed 9,300 anti-nausea injection (fosaprepitant) 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. Palchak receive payments from pharmaceutical companies?
Yes. Dr. Palchak received a total of $6,076 from 31 companies across 133 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. Palchak's costs compare to other hematology & oncology specialists in Arroyo Grande?
Dr. Palchak's average Medicare payment per service is $15. 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. Palchak) 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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