Dr. Emily Rachel Kobayashi, MD

Dr. Kobayashi practices at Astria Toppenish Hospital in Toppenish, Washington, part of Astria Health.

Dr. Kobayashi's NPI, 1447637210, was assigned on April 30, 2015. Dr. Kobayashi holds Washington license MD60954999.

Dr. Kobayashi's primary practice is Astria Toppenish Hospital, at 502 W Fourth Ave, Toppenish, WA 98948 in Yakima County. The practice phone is (509) 865-1520.

Dr. Kobayashi's primary practice is Astria Toppenish Hospital in Toppenish, Washington, part of Astria Health. Dr. Kobayashi is also affiliated with MultiCare Yakima Memorial Hospital. The medical group on file is Yakima General Surgery. Dmand AI also links Dr. Kobayashi to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kobayashi practices, 3 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Kobayashi's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Kobayashi is licensed in Washington.

CMS data shows 109 Medicare services from Dr. Kobayashi across 7 procedure codes in 2023, for 52 Medicare patients. Medicare paid $8,850 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 52 Medicare patients who saw Dr. Kobayashi in 2024. The largest group is 75 to 84, with 22 patients. 75% of them have high blood pressure, and 63% have high cholesterol. Their average risk score is 1.79, 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. Kobayashi's median patient age at 55, with 38% women.

In 2024, Dr. Kobayashi wrote 20 Medicare Part D claims for 11 patients. 100% of them were for generic drugs. They cover 1 drug, with $52 in total drug cost. In 2022, CMS named 22 claims across 1 drug.

Dr. Kobayashi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of colonoscopy by Dr. Kobayashi, more than 47% of the clinicians it reports for that procedure.

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

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

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

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 4 papers to Dr. Kobayashi, published from 2018 to 2025. Dr. Kobayashi has published most often in J Diabetes Sci Technol. Dr. Kobayashi's most frequent co-authors are Schafer Cale Boeder, MD, Kristen Marie Kulasa, MD and Amit R. Majithia, MD.

CMS Open Payments shows 11 general payments to Dr. Kobayashi from 3 drug and device companies from 2019 to 2024. Travel and lodging make up the largest share, 83% of the total. Intuitive Surgical, Inc. paid the most, $1,538.