Dr. Karen Kohatsu
What this data tells you about Dr. Kohatsu
Dr. Karen Kohatsu is an obstetrics & gynecology specialist in San Diego, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Kohatsu performed 604 Medicare services across 539 unique beneficiaries.
Between the years covered by Open Payments, Dr. Kohatsu received a total of $18,307 from 48 pharmaceutical and/or device companies across 503 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in obstetrics & gynecology. 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. Kohatsu 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 |
|---|---|---|---|
| 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. |
180 | $64 | $153 |
| Stool test for blood to screen for colon tumors A test that analyzes a stool sample to detect hidden blood, which is used to screen for colon tumors. |
120 | $4 | $20 |
| Pap smear screening test A screening test to collect and prepare a cervical or vaginal sample for laboratory analysis. |
102 | $46 | $70 |
| Pelvic and clinical breast exam for cancer screening A physical examination of the pelvis and breasts to screen for cervical or vaginal cancer. This procedure involves a clinical assessment performed by a healthcare provider. |
96 | $40 | $55 |
| 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. |
43 | $85 | $175 |
| 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. |
35 | $39 | $135 |
| Fitting and insertion of vaginal support device A procedure to measure, fit, and insert a device designed to support vaginal structures. |
28 | $56 | $112 |
Industry Payment Transparency
Open Payments through 2024 ↗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 (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (53%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in obstetrics & gynecology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 3% for obstetrics & gynecology 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 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. Kohatsu is a clinical cardiology specialist, with above-average Medicare volume (top 9% in CA), with speaking/promotional industry engagement in the top 3% of CA peers, 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. Kohatsu experienced with office visit, established patient (20-29 min)?
Does Dr. Kohatsu receive payments from pharmaceutical companies?
How do Dr. Kohatsu's costs compare to other obstetricians & gynecologists in San Diego?
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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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