Dr. Edwin Hayashi, M.D.
What this data tells you about Dr. Hayashi
Dr. Edwin Hayashi is a vascular surgery physician in Pismo Beach, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Hayashi performed 1,778 Medicare services across 1,470 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hayashi received a total of $732 from 4 pharmaceutical and/or device companies across 26 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular surgery physician. 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. Hayashi 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. |
616 | $71 | $175 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
212 | $39 | $100 |
| 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. |
152 | $85 | $275 |
| 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. |
134 | $133 | $400 |
| New patient office visit, complex (60-74 min) | 113 | $178 | $500 |
| 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. |
89 | $103 | $275 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
87 | $103 | $325 |
| Partial removal of breast | 43 | $521 | $1,622 |
| Central venous port insertion A surgical procedure to place a small reservoir under the skin for long-term access to the bloodstream. The device is connected to a vein to allow for repeated medication administration or blood draws. |
42 | $259 | $3,125 |
| 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. |
39 | $62 | $175 |
| Deep underarm lymph node biopsy or removal A procedure to remove or sample deep lymph nodes located in the underarm area for examination. |
33 | $208 | $1,082 |
| Arterial thrombectomy, chest, neck, or brain A procedure to remove a blood clot and part of an artery in the chest, neck, or brain. |
32 | $580 | $2,534 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
26 | $14 | $98 |
| Removal of tunneled central venous tube This procedure involves the removal of a catheter that has been surgically placed under the skin and threaded into a large vein. |
21 | $132 | $450 |
| Arteriovenous graft creation for hemodialysis Surgical procedure to create a connection between an artery and a vein using a synthetic tube graft to provide access for hemodialysis. |
20 | $497 | $2,350 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
18 | $11 | $100 |
| Groin hernia repair, age 5 or older Surgical repair of a hernia in the groin area for patients aged 5 years or older. |
16 | $432 | $1,406 |
| Arm vein relocation with artery connection for hemodialysis A surgical procedure to move a vein in the arm and connect it to an artery to create access for hemodialysis. |
15 | $474 | $2,100 |
| Laparoscopic gallbladder removal Surgical removal of the gallbladder using a small camera and instruments inserted through tiny incisions in the abdomen. |
15 | $522 | $2,050 |
| Endoscopic insertion of abdominal cavity tube A tube is placed into the abdominal cavity using an endoscope, which is a flexible instrument with a camera used to guide the procedure. |
15 | $293 | $1,000 |
| 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. |
14 | $47 | $100 |
| 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. |
14 | $132 | $350 |
| Endoscopic partial release and removal of large bowel This procedure involves using an endoscope to partially release and remove part of the large bowel. |
12 | $144 | $500 |
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 (2020-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
5.6 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. Hayashi is a clinical cardiology specialist, with above-average Medicare volume (top 20% in CA), with low-engagement industry engagement, with 20 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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