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County · Maryland

Outpatient surgery centers in Howard County, MD

25 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)4
  • Endoscopy (for example colonoscopy)5
  • Orthopedic surgery (bones and joints)3
  • Pain management procedures9
  • Plastic surgery4
  • Foot surgery (podiatry)3
  • Gynecologic surgery (OB/GYN)2
  • Other surgery7

By city

All outpatient surgery centers in Howard County

Clarksville (1)

Columbia (12)

Elkridge (4)

Ellicott City (5)

Fulton (2)

Marriottsville (1)

More care in Howard County

Common questions

How many outpatient surgery centers are in Howard County?

Medicare (CMS) lists 25 outpatient surgery centers in Howard County, Maryland.

Which surgery centers in Howard County do eye surgery such as cataract surgery?

4 of the 25 outpatient surgery centers are certified by Medicare for it: Columbia Parkway Surgery Center, LLC, Columbia Surgical Institute, Snowden River Surgery Center, LLC and University of Maryland Surgery Center. Ask the center whether it does your specific procedure.

Which surgery centers in Howard County do endoscopy such as colonoscopy?

5 of the 25 outpatient surgery centers are certified by Medicare for it: Cascades Endoscopy Center, LLC, Central Maryland Endoscopy, LLC, Ellicott City Ambulatory Surgery Center, Howard County Gastrointestinal Diagnostic Center LLC and Johns Hopkins Surgery Centers Series. Ask the center whether it does your specific procedure.

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

3 of the 25 outpatient surgery centers are certified by Medicare for it: Ellicott City Ambulatory Surgery Center, Maple Lawn Surgery Center, LLC and University of Maryland Surgery Center. 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 2026-11-13. In a medical emergency, call 911. About outpatient surgery centers and their quality measures