Dr. Edwin S. Hayashi, MD

Dr. Hayashi practices at Coastal Surgical Institute - HOPD in Pismo Beach, California.

Dr. Hayashi's NPI, 1295797397, was assigned on April 4, 2006. Dr. Hayashi graduated from UCSF School of Medicine in 1990. Dr. Hayashi holds California license G74276.

Dr. Hayashi's primary practice is Coastal Surgical Institute - HOPD, at 921 Oak Park Blvd, Pismo Beach, CA 93449.

Dr. Hayashi's primary practice is Coastal Surgical Institute - HOPD in Pismo Beach, California. Dr. Hayashi is also affiliated with Dignity Health - Marian Regional Medical Center. The medical group on file is Associated Surgeons of San Luis Obispo. Dmand AI also links Dr. Hayashi to 3 more hospitals, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hayashi practices, 7 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Hayashi's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hayashi is board certified in surgery by the American Board of Surgery. Dr. Hayashi is licensed in California.

Dmand AI lists abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, arterial blot clot /embolism, bladder removal, blood vessel access for dialysis, cancerous skin growth removal and carotid revascularization among the conditions Dr. Hayashi treats.

CMS data shows 1,505 Medicare services from Dr. Hayashi across 24 procedure codes in 2024, for 852 Medicare patients. Medicare paid $197,490 for them.

CMS counts 852 Medicare patients who saw Dr. Hayashi in 2024. The largest group is 65 to 74, with 387 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Hayashi's median patient age at 71, with 69% women.

In 2024, Dr. Hayashi wrote 353 Medicare Part D claims for 287 patients. 99% of them were for generic drugs. CMS names the drug for 315 of them, across 2 drugs with 11 or more claims each, at $1,618 in total drug cost. In 2023, CMS named 272 claims across 4 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Hayashi for performance year 2024, reported as part of a group. Dr. Hayashi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hayashi as offering telehealth. CMS counts 96 procedures of mastectomy by Dr. Hayashi, more than 99% of the clinicians it reports for that procedure.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 1 paper to Dr. Hayashi in 2011. Dr. Hayashi's most frequent co-authors are Larisa M. Lehmer, MD and Bruce D. Ragsdale, MD.

CMS Open Payments shows 50 general payments to Dr. Hayashi from 5 drug and device companies from 2017 to 2025. Travel and lodging make up the largest share, 63% of the total. Medtronic Vascular, Inc. paid the most, $2,365.

Dmand AI lists 2 awards for Dr. Hayashi, most recently CMS Stage 1 EHR in 2013.

Dr. Hayashi graduated from UCSF School of Medicine in 1990. Dr. Hayashi is a member of ACS.

Dr. Hayashi is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.