Dr. Johanna D. Larrazabal, MD

Dr. Larrazabal practices at Sentara Williamsburg Regional - Unit in Williamsburg, Virginia.

Dr. Larrazabal's NPI, 1588632574, was assigned on March 8, 2006. Dr. Larrazabal holds Virginia license 0101238426.

Dr. Larrazabal's primary practice is Sentara Williamsburg Regional - Unit, at 100 Sentara Circle, Williamsburg, VA 23188 in James City. The practice phone is (757) 984-7409.

Dr. Larrazabal's primary practice is Sentara Williamsburg Regional - Unit in Williamsburg, Virginia. Dr. Larrazabal is also affiliated with Sentara Williamsburg Regional Medical Center. The medical group on file is Riverside Gastroenterology Specialists. Dmand AI also links Dr. Larrazabal to 4 more hospitals, 3 home health agencies and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larrazabal practices, 10 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Larrazabal's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Larrazabal is licensed in Virginia.

CMS data shows 6,556 Medicare services from Dr. Larrazabal across 50 procedure codes in 2024, for 412 Medicare patients. Medicare paid $199,327 for them. Every service was in an office.

CMS counts 412 Medicare patients who saw Dr. Larrazabal in 2024. The largest group is 65 to 74, with 196 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Larrazabal's median patient age at 67, with 67% women.

In 2024, Dr. Larrazabal wrote 9,268 Medicare Part D claims for 572 patients. 89% of them were for generic drugs. CMS names the drug for 8,584 of them, across 154 drugs with 11 or more claims each, at $588,088 in total drug cost. In 2023, CMS named 7,929 claims across 147 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Larrazabal for performance year 2024, reported through an alternative payment model (APM). Dr. Larrazabal accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Larrazabal as offering telehealth.

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

Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 242 general payments to Dr. Larrazabal from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $855.