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Important Alerts
Updates

As of June 2, 2025, Optum Cardiology and Optum Cardiac Electrophysiology have relocated to the 100 building on South Bedford Road, on the 3rd Floor. The new suite is just a two-minute walk away.

As of May 28, 2025, Pediatrics in West Orange located at 35 Park Ave has relocated to  55 Morris Ave in Springfield.

As of May 19, the OBGYN office in Syosset has relocated to Suite 181 in the same building at 575 Underhill Blvd, Syosset, NY.

Recording/Photography Not Permitted on Premises

Office and Urgent Care Closures

The Croton-on-Hudson lab is temporarily closed until further notice.

COVID-19 Information and Updates

Flu and COVID-19 vaccines are now available ›

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Home ❯ Services and specialties ❯ Optum lab services hours

Nassau County

Bethpage
  • Monday: 7:30 a.m.-4 p.m.
  • Tuesday: 7:30 a.m.-4 p.m.
  • Wednesday: 7:30 a.m.-4 p.m.
  • Thursday: 7:30 a.m.-4 p.m.
  • Friday: 7:30 a.m.-4 p.m.
  • Saturday: 7:30 a.m.-12 p.m.
  • Sunday: Closed
Lake Success, 1 Dakota Drive
  • Monday: 7:30 a.m.–6 p.m.
  • Tuesday: 7:30 a.m.–6 p.m.
  • Wednesday: 7:30 a.m.–6 p.m.
  • Thursday: 7:30 a.m.–6 p.m.
  • Friday: 7:30 a.m.–6 p.m.
  • Saturday: Closed
  • Sunday: Closed
Lake Success, 2 Ohio Drive
  • Monday: 8 a.m.–4 p.m.
  • Tuesday: 8 a.m.–4 p.m.
  • Wednesday: 8 a.m.–4 p.m.
  • Thursday: 8 a.m.–4 p.m.
  • Friday: 8 a.m.–4 p.m.
  • Saturday: Closed
  • Sunday: Closed
Syosset
  • Monday: 7:30 a.m.-3:30 p.m.
  • Tuesday: 7:30 a.m.-3:30 p.m.
  • Wednesday: 7:30 a.m.-3:30 p.m.
  • Thursday: 7:30 a.m.-3:30 p.m.
  • Friday: 7:30 a.m.-3:30 p.m.
  • Saturday: Closed
  • Sunday: Closed

Putnam County Offices

Carmel (Brewster) – NY-312
  • Monday: 8 a.m.–5:30 p.m.
  • Tuesday: 8 a.m.–5:30 p.m.
  • Wednesday: 8 a.m.–5:30 p.m.
  • Thursday: 8 a.m.–5:30 p.m.
  • Friday: 8 a.m.–5:30 p.m.
  • Saturday: 8 a.m.–12:30 p.m.
  • Sunday: Closed

EKG Available

Carmel – Stoneleigh Ave
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed

EKG Available

Dutchess County Offices

Fishkill – Merritt Blvd 
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed

EKG Available

Fishkill – Westage Business Center Dr
  • Monday: 7 a.m.–4:30 p.m.
  • Tuesday: 7 a.m.–4:30 p.m.
  • Wednesday: 7 a.m.–4:30 p.m.
  • Thursday: 7 a.m.–4:30 p.m.
  • Friday: 7 a.m.–4:30 p.m.
  • Saturday: 8-11:30 a.m.
  • Sunday: Closed

EKG Available

Hopewell Junction
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed

EKG Available

Poughkeepsie – Columbia St
  • Monday: 7 a.m.–4:30 p.m.
  • Tuesday: 7 a.m.–4:30 p.m.
  • Wednesday: 7 a.m.–4:30 p.m.
  • Thursday: 7 a.m.–4:30 p.m.
  • Friday: 7 a.m.–4:30 p.m.
  • Saturday: 8 a.m.-11:45 a.m.
  • Sunday: Closed
Poughkeepsie – 2507 South Road (Oakwood Commons)
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed

EKG Available

Poughkeepsie – 2515 South Rd (OB/GYN)
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed
Rhinebeck
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed

Suffolk County

Port Jefferson
  • Monday: 7 a.m.-3 p.m.
  • Tuesday: 7 a.m.-3 p.m.
  • Wednesday: 7 a.m.-3 p.m.
  • Thursday: 7 a.m.-3 p.m.
  • Friday: 7 a.m.-3 p.m.
  • Saturday: Closed
  • Sunday: Closed

Ulster County Offices

Kingston
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed
New Paltz
  • Monday: 8 a.m.–4:45 p.m. (closed for lunch 12:30-1:30 p.m.)
  • Tuesday: 8 a.m.–4:45 p.m. (closed for lunch 12:30-1:30 p.m.)
  • Wednesday: 8 a.m.–4:45 p.m. (closed for lunch 12:30-1:30 p.m.)
  • Thursday: 8 a.m.–4:45 p.m. (closed for lunch 12:30-1:30 p.m.)
  • Friday: 8 a.m.–4:45 p.m. (closed for lunch 12:30-1:30 p.m.)
  • Saturday: Closed
  • Sunday: Closed

Westchester County Offices

Briarcliff Manor
  • Monday: 8:30 a.m.–5 p.m.
  • Tuesday: 8:30 a.m.–5 p.m.
  • Wednesday: 8:30 a.m.–5 p.m.
  • Thursday: 8:30 a.m.–5 p.m.
  • Friday: 8:30 a.m.–5 p.m.
  • Saturday: Closed
  • Sunday: Closed
Croton-on-Hudson

(Temporarily closed until further notice)

  • Monday: 8 a.m.–4:45 p.m. (closed for lunch 12-1 p.m.)
  • Tuesday: 8 a.m.–4:45 p.m. (closed for lunch 12-1 p.m.)
  • Wednesday: 8 a.m.–4:45 p.m. (closed for lunch 12-1 p.m.)
  • Thursday: 8 a.m.–4:45 p.m. (closed for lunch 12-1 p.m.)
  • Friday: 8 a.m.–4:45 p.m. (closed for lunch 12-1 p.m.)
  • Saturday: Closed
  • Sunday: Closed
Jefferson Valley
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: 9 a.m.–12 p.m.
  • Sunday: Closed

EKG Available

Katonah
  • Monday: 8:30 a.m.–5 p.m.
  • Tuesday: 8:30 a.m.–5 p.m.
  • Wednesday: 8:30 a.m.–5 p.m.
  • Thursday: 8:30 a.m.–5 p.m.
  • Friday: 8:30 a.m.–5 p.m.
  • Saturday: 9 a.m.–12:30 p.m.
  • Sunday: Closed
Mount Kisco
  • Monday: 7:30 a.m.–6 p.m.
  • Tuesday: 7:30 a.m.–6 p.m.
  • Wednesday: 7:30 a.m.–6 p.m.
  • Thursday: 7:30 a.m.–6 p.m.
  • Friday: 7:30 a.m.–6 p.m.
  • Saturday: 8 a.m.–12:30 p.m.
  • Sunday: Closed

EKG Available

Somers
  • Monday: 8 a.m.–4:30 p.m.
  • Tuesday: 8 a.m.–4:30 p.m.
  • Wednesday: 8 a.m.–4:30 p.m.
  • Thursday: 8 a.m.–4:30 p.m.
  • Friday: 8 a.m.–4:30 p.m.
  • Saturday: Closed
  • Sunday: Closed
Yorktown Heights
  • Monday: 8:30 a.m.–5:30 p.m.
  • Tuesday: 8:30 a.m.–5:30 p.m.
  • Wednesday: 8:30 a.m.–5:30 p.m.
  • Thursday: 8:30 a.m.–5:30 p.m.
  • Friday: 8:30 a.m.–5:30 p.m.
  • Saturday: Closed
  • Sunday: Closed