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Dr. Adam D. Shellito, M.D.

Colorectal Surgery (Colon & Rectal Surgery Physician)

300 Pasteur Dr
Stanford, CA 94305

Who else practices at this address →

Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas

Call (650) 723-4000

  • Medicare participating

At a glance

Years since graduation
10
In the NPI registry since
2014
Medicare patients seen, 2024
135

Licensed in California since 2017, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2016Medical school: University of California, Davis School of Medicine
  • 2014Registered with an NPI (national billing number; not a license date)

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Colon & Rectal Surgery Physician primary
    CA license A151606 (first issued 2017; current)
  • Surgery Physician
    CA license A151606 (first issued 2017; current)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Colorectal Surgery per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
135
Services billed
346
Patients’ average age
72

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Metronidazole
Other prescribers in Stanford, CA
12
Neomycin Sulfate11
Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl)
Other prescribers in Stanford, CA
11

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 1 companies reported 3 payments worth $1,206 in total to this clinician.

By company
Intuitive Surgical, Inc.$1,206
By type
Travel and Lodging$828
Food and Beverage$378

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Feb 20, 2025Intuitive Surgical, Inc.
Feb 20, 2025
Travel and Lodging
Da Vinci Surgical System · SURGERY · travel to ORLANDO, FL · in-kind
$791
Feb 20, 2025Intuitive Surgical, Inc.
Feb 20, 2025
Travel and Lodging
Da Vinci Surgical System · SURGERY · travel to ORLANDO, FL · in-kind
$37.00

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in California →

Other Colorectal Surgery clinicians in Stanford

Sources

NPI registry (CMS NPPES, November 2026; record last updated November 2, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1750793667. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.