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In Spring Valley, Leslie A. Marra works as a nurse practitioner at Sentinel Services Group Inc.
To book an appointment, call (845) 286-2211. Marra's office is at 232 N Main St, Spring Valley, NY 10977. A second listed location: 7 Croton Ave, Cortlandt Manor, NY 10567. 10 clinicians bill Medicare through Sentinel Services Group Inc, so it is a group practice rather than a solo office. For Medicare patients: Marra accepts assignment.
Practice details
- Specialty
- Nurse practitioner
- Credentials
- NP
- Practice
- Sentinel Services Group Inc
- Address
- 232 N Main St, Spring Valley, NY 10977
- Phone
- (845) 286-2211
- Other locations
- 7 Croton Ave, Cortlandt Manor, NY 10567
- Medicare assignment
- Accepts
- NPI number
- 1861518367
- NY license no.
- 400315
Have you been a patient of Marra? A short, fair review — what went well, what didn't — helps the next person choosing a nurse practitioner in Spring Valley.
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.
Comparing nurse practitioners? See 20 in Spring Valley or 214 across Hudson Valley.
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Frequently Asked Questions
With Sentinel Services Group Inc, at 232 N Main St, Spring Valley, NY 10977.
Call the office at (845) 286-2211.
Yes — Marra accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
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