Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Wayne D. Piers, DO

Individual provider Orthopaedic Surgery Physician · NPI 1174696611

Wayne D. Piers, DO practises Orthopedic Surgery in Portland, Maine. Graduated from Michigan State University College of Osteopathic Medicine in 1990, 36 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
36
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
ME
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

33 Sewall St
Portland, ME 04102-2638
Phone: (207) 828-2100
Fax: (207) 553-7166
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 14 Thomas Point Rd, Brunswick, ME 04011-3911 — (207) 828-2100
  • 22 Station Ave Ste 201, Brunswick, ME 04011-2092 — (207) 828-2100
  • 193 Main St, Norway, ME 04268-5645 — (207) 828-2100
  • 4 Commons Ave Ste A, Windham, ME 04062-5554 — (207) 828-2100

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence DO1378 (ME)

Record details

NPI number1174696611
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 15, 2006
Last updated in NPPESJuly 21, 2026
Certification dateJuly 21, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1990 (36 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Hip replacement 19 times · 65th percentile
Knee replacement 25 times · 59th percentile
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients361
Services billed 12,464 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Mainehealth Stephens Hospital Hospital · Norway, ME
  • Northern Light Mercy Hospital Hospital · Portland, ME
  • Andwell Health Partners Home health agency · Lewiston, ME
  • Mainehealth Home Health And Hospice Home health agency · Saco, ME
  • Northern Light Home Care & Hospice Home health agency · So Portland, ME

Colleagues at Mainehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2615 clinicians in the practice; 12 are shown here.

Other providers in Portland