Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Plastic and Reconstructive Surgery

Johnstuart M. Guarnieri, MD

Works at hospitals in Williamsburg, VA · Virginia

Summary

Johnstuart M. Guarnieri, MD (Plastic and Reconstructive Surgery) is listed by Medicare at 1 hospital in Williamsburg, VA. NPI 1215025200. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Johnstuart M. Guarnieri, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Plastic and Reconstructive SurgeryPrimary specialty
YesAccepts Medicare assignment
41Years since medical school (graduated 1985)
Eastern Virginia Medical SchoolMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Johnstuart M. Guarnieri work at?
Medicare's official clinician data lists Johnstuart M. Guarnieri at 1 hospital: Sentara Williamsburg Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Johnstuart M. Guarnieri see patients?
Medicare's clinician data lists 1 practice location in Williamsburg, VA. Call before your visit to confirm the address.
What is Johnstuart M. Guarnieri's specialty?
Medicare lists Plastic and Reconstructive Surgery as the primary specialty.
Does Johnstuart M. Guarnieri accept Medicare assignment?
Yes. Medicare's clinician data says Johnstuart M. Guarnieri accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Johnstuart M. Guarnieri?
(757) 345-2275, as listed in official Medicare / NPI Registry data.
What is Johnstuart M. Guarnieri's NPI number?
1215025200. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Johnstuart M. Guarnieri works

Medicare's Facility Affiliation Data lists Johnstuart M. Guarnieri at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Johnstuart M. Guarnieri is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Plastic and Reconstructive Surgery doctors in Virginia →

Other plastic surgeons in Williamsburg

Clinicians with the same Medicare primary specialty in Williamsburg, VA — not a recommendation.

All plastic surgeons in Williamsburg →

Clinician information

CredentialMD
Medical schoolEastern Virginia Medical School
Graduation year1985
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215025200
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians