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Dr. Junichi Shimamura, a thoracic surgeon based in Valhalla, NY, practices with Westchester Medical Center Advanced Physician Services PC.
To book an appointment, call (914) 493-6940. Dr. Shimamura's office is at 95 Grasslands Rd, Valhalla, NY 10595. Dr. Shimamura 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. He accepts Medicare assignment — useful to know if you are on traditional Medicare.
On the hospital side, Dr. Shimamura holds affiliations with Westchester Medical Center and HealthAlliance Hospital Mary's Avenue Campus.
Key facts
- Specialty
- Thoracic 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
- Hospital affiliations
- Westchester Medical Center, HealthAlliance Hospital Mary's Avenue Campus
- Medicare assignment
- Accepts
- NPI number
- 1962109702
- NY license no.
- 324555
Seen Dr. Shimamura recently? Share how your visit went.
Medicare, Medicaid and hospitals
- Medicare patients (2024)
- 100 people with traditional Medicare, average age 76
- Most common services billed to Medicare
- Replacement of aortic valve through the skin and femoral artery
- Coronary artery bypass using artery graft, 1 graft
- Procedures on Medicare Care Compare
- Coronary artery bypass graft (CABG) 30 procedures
- 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 2023. 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 heart & chest surgeons? See 5 in Valhalla or 16 across Westchester County.
Other heart & chest surgeons in Valhalla
Dr. Daniel Nicastri, MDThoracic Surgeon · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. David Spielvogel, MDCardiac Surgeon · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Makoto Hibino, MDCardiac Surgeon · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Ramin Malekan, MDThoracic Surgeon · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NYWrite a review
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. Shimamura 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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