Dr. George Ishak, M.D
What this data tells you about Dr. Ishak
Dr. George Ishak is a hospitalist physician in Thousand Oaks, CA, with 11 years of NPI registration. Based on federal Medicare data, Dr. Ishak performed 778 Medicare services across 437 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ishak received a total of $4,136 from 6 pharmaceutical and/or device companies across 11 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hospitalist physician. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Ishak 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.
Medicare Practice Summary
Medicare Utilization ↗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 |
|---|---|---|---|
| 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. |
434 | $99 | $793 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
134 | $68 | $315 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
104 | $96 | $913 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
75 | $141 | $1,414 |
| Hospital discharge day management, 30 minutes or less This service covers the final day of hospital care when the patient is being discharged. It includes coordination of care and instructions for the patient within a time frame of 30 minutes or less. |
17 | $70 | $283 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
14 | $65 | $318 |
Industry Payment Transparency
Open Payments through 2023 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2023)
All-time payments by company (2018-2023) ›
Associated products mentioned in payments ›
The majority of payments (92%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in hospitalist physician and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 5% for hospitalist physician in CA.
Geographic Context
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 2023 |
| 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. Ishak is a clinical cardiology specialist, with above-average Medicare volume (top 27% in CA), with speaking/promotional industry engagement in the top 5% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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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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