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Patients in Valhalla and around Westchester County see Dr. Erik Johnsen, a cardiologist, at Westchester Medical Center Advanced Physician Services PC.
Dr. Johnsen earned his medical degree at Rutgers New Jersey Medical School in 2018 — 8 years ago.
To book an appointment, call (914) 493-6940. Dr. Johnsen's office is at 95 Grasslands Rd, Valhalla, NY 10595. Other listed locations: 100 Woods Rd, Valhalla, NY 10595; 19 Bradhurst Ave, Hawthorne, NY 10532. Westchester Medical Center Advanced Physician Services PC is a large group — 897 clinicians are enrolled with Medicare under it. For Medicare patients: Dr. Johnsen accepts assignment.
Hospital affiliations on file with Medicare: Westchester Medical Center, Good Samaritan Hospital of Suffern, HealthAlliance Hospital Mary's Avenue Campus and Putnam Hospital Center.
Practice details
- Specialty
- Cardiologist
- 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; 19 Bradhurst Ave, Hawthorne, NY 10532
- Medical school
- Rutgers New Jersey Medical School (2018)
- Hospital affiliations
- Westchester Medical Center, Good Samaritan Hospital of Suffern, HealthAlliance Hospital Mary's Avenue Campus, Putnam Hospital Center
- Medicare assignment
- Accepts
- NPI number
- 1104320977
- NY license no.
- 33711201
Have you been a patient of Dr. Johnsen? A short, fair review — what went well, what didn't — helps the next person choosing a cardiologist in Valhalla.
Medicare, Medicaid and hospitals
- New York Medicaid
- Enrolled fee-for-service provider since 2025. Medicaid managed-care plans keep their own networks, so check with your plan.
- Hospital pages
- Good Samaritan Hospital of Suffern · HealthAlliance Hospital Mary's Avenue Campus · Putnam Hospital Center · Westchester Medical Center · White Plains Hospital Center
Comparing cardiologists? See 19 in Valhalla or 171 across Westchester County.
Other cardiologists in Valhalla
Dr. Mala Sharma, MDCardiologist · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Mark H. Goldberger, MDCardiologist · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Matthew Pierce, MDCardiologist · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Robert J. Timmermans, MDCardiologist · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Roi B. Bar Cohen, MDCardiologist · Westchester Medical Center Advanced Physician Services PCNo reviews yetValhalla, NY
Dr. Anthon R. Fuisz, MDCardiologist · 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. Johnsen accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
Westchester Medical Center, Good Samaritan Hospital of Suffern, HealthAlliance Hospital Mary's Avenue Campus and Putnam Hospital Center.
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