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State

Outpatient surgery centers in Maryland

361 outpatient surgery centers certified by Medicare.

An outpatient surgery center (ambulatory surgical center, ASC) does surgery and procedures that do not need a hospital stay: patients usually go home the same day. Common examples are cataract surgery, colonoscopy and other endoscopy, joint and hand surgery, and pain injections. The centers listed here are certified by Medicare. They are not emergency rooms.

By kind of surgery

Number of centers here certified by Medicare for each kind of surgery (one center can do several).

  • Eye surgery (ophthalmology)49
  • Endoscopy (for example colonoscopy)68
  • Orthopedic surgery (bones and joints)65
  • Pain management procedures94
  • Plastic surgery67
  • Foot surgery (podiatry)72
  • Ear, nose and throat surgery39
  • Gynecologic surgery (OB/GYN)34
  • Dental and oral surgery12
  • Other surgery109

By county

By city

All outpatient surgery centers in Maryland

Aberdeen

Abingdon

Annapolis

Arnold

Baltimore

Bel Air

Beltsville

Berlin

Berwyn Heights

Bethesda

Bowie

Brandywine

Cambridge

Chevy Chase

Clarksville

Columbia

Cumberland

Dundalk

Easton

Elkridge

Elkton

Ellicott City

Forest Hill

Frederick

Fulton

Gaithersburg

Glen Burnie

Glenn Dale

Great Mills

Greenbelt

Hagerstown

Halethorpe

Hanover

Havre de Grace

Hunt Valley

Huntingtown

Hyattsville

Ijamsville

Kensington

La Plata

Lanham

Largo

Laurel

Leonardtown

Linthicum

Lutherville

Mechanicsville

Millersville

Mount Airy

National Harbor

North Bethesda

Nottingham

Odenton

Olney

Owings Mills

Oxon Hill

Pasadena

Perry Hall

Pikesville

Point of Rocks

Potomac

Prince Frederick

Rockville

Salisbury

Severna Park

Stevensville

Takoma Park

Temple Hills

Timonium

Towson

Waldorf

Westminster

Wheaton

White Plains

Williamsport

More care in Maryland

Common questions

How many outpatient surgery centers are in Maryland?

Medicare (CMS) lists 361 outpatient surgery centers in Maryland.

Which surgery centers in Maryland do eye surgery such as cataract surgery?

49 of the 361 outpatient surgery centers are certified by Medicare for it: Arundel Ambulatory Surgery Center, Azar Eye Surgery Center LLC, Baltimore Eye Surgical Center,, LLC, Baltimore Washington Eye Center, Carroll County Eye Surgery Center, LLC, Cec Surgical Services, Chesapeake Eye Surgery, Children's National Amb Surg Ctr at Montgomery Co, Columbia Parkway Surgery Center, LLC, Columbia Surgical Institute, Delmar Surgical Center and Dulaney Eye Institute, and 37 more listed below. Ask the center whether it does your specific procedure.

Which surgery centers in Maryland do endoscopy such as colonoscopy?

68 of the 361 outpatient surgery centers are certified by Medicare for it: Advanced Surgery Center LLC, Ambulatory Endoscopy Center of Maryland, Annapolis Endoscopy Center, LLC, Anne Arundel Digestive Center, Baltimore Ambulatory Center for Endoscopy, Bethesda Endoscopy Center, LLC, Calvert Digestive Disease Asso Endoscopy and Surge, Capital Endoscopy & Surgery Center, LLC, Carroll County Asc/Yash Kumar, Cascades Endoscopy Center, LLC, Central Maryland Endoscopy, LLC and Chevy Chase Endoscopy Center, and 56 more listed below. Ask the center whether it does your specific procedure.

Which surgery centers in Maryland do orthopedic (bone and joint) surgery?

65 of the 361 outpatient surgery centers are certified by Medicare for it: Aamc Surgery Center - Annapolis, Aamc Surgery Center - Pasadena, Advanced Surgery Center of Bethesda, Arundel Ambulatory Surgery Center, Bethesda Chevy Chase Surgery Center, LLC, Capital Orthopaedic Surgery Center, LLC, Charles Regional Surgical Center, LLC, Children's National Amb Surg Ctr at Montgomery Co, Cumberland Valley Surgery Cent, District Surgery Center LLC, Ellicott City Ambulatory Surgery Center and Frederick Surgical Center, and 53 more listed below. Ask the center whether it does your specific procedure.

Do surgery centers have Medicare star ratings?

No. Medicare does not rate outpatient surgery centers with stars. Each center’s page shows the official Medicare quality measures and patient survey results instead, next to the national values.

Source: Centers for Medicare & Medicaid Services (CMS), “Provider of Services File - Internet Quality Improvement and Evaluation System”, data updated 2026-10-16, retrieved 2026-11-11. In a medical emergency, call 911. About outpatient surgery centers and their quality measures