Stoneleigh Medical Group

About Stoneleigh Medical Group

Stoneleigh Medical Group is a multi-site practice in Westchester and Putnam counties with an internal medicine and primary care arm. Before anything else, two things will trip you up. The website is westchesterputnamgastro.com — a domain that does not match the name — and the site presents itself first as a gastroenterology and endoscopy group, with primary care attached. And it publishes no prices of any kind: no fee schedule, no consultation cost, nothing.

## Where actually is it?

Five locations are published on the contact page: 2424 Route 6 in Brewster, NY 10509; 667 Stoneleigh Avenue, Suite 201, Building A in Carmel, NY 10512; 3630 Hill Blvd, Suite 402 in Jefferson Valley, NY 10535; 1872 Commerce St in Yorktown Heights, NY 10598; and 7 Chapin Lane in Pawling, NY 12564. What the page does not do is publish hours for any of them, and the home page carries none either. So you can find the buildings but not the times.

## What does the internal medicine side treat?

The internal medicine page lists allergies, asthma, birth control, diabetes, high cholesterol, hypertension, hypothyroidism, headaches, menopause symptoms, hormone imbalance, HPV vaccine, vaccinations, DOT physicals, medical marijuana certification, and cosmetic services.

## Is hormone therapy offered?

Hormone imbalance is listed as a condition treated, so it is on the menu. Beyond that we cannot tell you much, and the reason is mechanical: the condition page that would say more returned an HTTP 500 server error on two separate attempts on 22 September 2026. No hormone medication, no therapy description and no protocol could be read. If hormone replacement is what brought you here, that page is where to start once it is working again.

## Who would I see?

Ten clinicians are named: Sunil Gupta, MD; Michael Kushner, MD; Lizabeth Fiedler, MD; Rajiv Perinbasekar, MD; Gautam Ahluwalia, MD; Michael Grill, DO; Michelle Borrero, RPA; Kim Gembecki, FNP; Sejal Lauro, RPA-C; and Cathryn Mohammed, FNP-BC. The provider page does not say which of them works at which of the five offices, or which handle internal medicine rather than gastroenterology — so booking with the right person at the right building takes a phone call.

## What the site doesn't answer

Across the home page, internal medicine page, provider page and contact page: no price, no fee and no consultation cost. An insurance coverage page sits in the patient resources navigation unopened, and none of the pages we read carries an insurance statement, so which plans are accepted is unknown. No telehealth statement appears and no states are named. No service area is published beyond the five addresses themselves, no patient group is described, and the site gives no founding year or years-in-practice figure.

**Sources:** https://www.westchesterputnamgastro.com · https://www.westchesterputnamgastro.com/contents/internal-medicine · https://www.westchesterputnamgastro.com/provider · https://www.westchesterputnamgastro.com/contactus

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