Dr. Karthik Ganapathi, MD, PHD
What this data tells you about Dr. Ganapathi
Dr. Karthik Ganapathi is a hematology physician in San Francisco, CA, with 16 years of NPI registration. Based on federal Medicare data, Dr. Ganapathi performed 1,200 Medicare services across 746 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ganapathi received a total of $27,714 from 3 pharmaceutical and/or device companies across 26 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology (pathology) 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. Ganapathi 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 |
|---|---|---|---|
| Tissue staining for diagnosis, additional An extra laboratory procedure to apply special stains to tissue slides for detailed examination. |
393 | $26 | $122 |
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
250 | $33 | $242 |
| Manual microscopic genetic analysis of tumor A laboratory test that uses a microscope to manually examine tumor tissue for genetic changes. |
161 | $38 | $494 |
| Bone marrow smear interpretation A laboratory review of a bone marrow sample slide to examine cell structure and identify abnormalities. |
136 | $42 | $333 |
| Tissue staining for diagnosis, initial A laboratory test where special stains are applied to tissue slides to help examine the cells and identify specific characteristics. |
127 | $32 | $180 |
| Surgical pathology consultation on referred slides A pathologist reviews and reports on tissue slides that were prepared at another facility. This service provides a second opinion or expert analysis of the existing samples. |
41 | $76 | $299 |
| Special tissue stain and interpretation A laboratory test using special stains to examine tissue samples, including the pathologist's review and written report of the findings. |
34 | $11 | $179 |
| Blood smear interpretation with written report A physician examines a blood sample slide under a microscope to analyze blood cells. The doctor provides a written report of their findings. |
26 | $22 | $146 |
| Genetic sequencing localization, initial procedure This procedure involves the initial process of localizing genetic sequencing. It identifies the specific location of genetic material for further analysis. |
18 | $39 | $332 |
| Surgical pathology consultation with slide preparation A specialist reviews tissue samples sent by another provider, preparing necessary slides for examination. The specialist then provides a diagnostic report based on this analysis. |
14 | $79 | $332 |
Industry Payment Transparency
Open Payments through 2022 ↗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 (2022)
All-time payments by company (2019-2022) ›
Associated products mentioned in payments ›
The majority of payments (99%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in hematology (pathology) physician and does not inherently indicate bias, but patients may wish to be aware.
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2022 |
| 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. Ganapathi is a mixed practice specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 17% of CA peers, with 16 years of NPI registration.
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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