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Dr. Devon G. John sees patients in Valhalla as a general surgeon with Westchester Medical Center Advanced Physician Services PC.

Dr. John earned his medical degree at Icahn School of Medicine at Mount Sinai in 1988 — 38 years ago.

Westchester Medical Center Advanced Physician Services PC's Valhalla location at 95 Grasslands Rd, Valhalla, NY 10595 is where Dr. John sees patients — appointments by phone at (914) 493-6940. Dr. John is also listed at 100 Woods Rd, Valhalla, NY 10595. Westchester Medical Center Advanced Physician Services PC is a large group — 897 clinicians are enrolled with Medicare under it. For Medicare patients: Dr. John accepts assignment.

Dr. John is affiliated with Westchester Medical Center and HealthAlliance Hospital Mary's Avenue Campus.

Practice details

Specialty
General surgeon
Credentials
MD
Practice
Westchester Medical Center Advanced Physician Services PC
Address
95 Grasslands Rd, Valhalla, NY 10595
Phone
(914) 493-6940
Other locations
100 Woods Rd, Valhalla, NY 10595
Medical school
Icahn School of Medicine at Mount Sinai (1988)
Hospital affiliations
Westchester Medical Center, HealthAlliance Hospital Mary's Avenue Campus
Medicare assignment
Accepts
NPI number
1932196862
NY license no.
200975

Reviews here come only from patients. If you've seen Dr. John, add yours.

Medicare, Medicaid and hospitals

Medicare patients (2024)
60 people with traditional Medicare, average age 59
Most common services billed to Medicare
  • Transplantation of donor kidney
Procedures on Medicare Care Compare
  • Removal of tissue 1–10 procedures
Medicare quality score (MIPS 2024)
75 out of 100 — reported through the group practice
New York Medicaid
Enrolled fee-for-service provider since 2003. Medicaid managed-care plans keep their own networks, so check with your plan.
Hospital pages
HealthAlliance Hospital Mary's Avenue Campus · Westchester Medical Center

Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.

Comparing general surgeons? See 27 in Valhalla or 109 across Westchester County.

Other general surgeons in Valhalla

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Frequently Asked Questions

With Westchester Medical Center Advanced Physician Services PC, at 95 Grasslands Rd, Valhalla, NY 10595.

Call the office at (914) 493-6940.

Yes — Dr. John accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.

Westchester Medical Center and HealthAlliance Hospital Mary's Avenue Campus.

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