William David Emper, M.D.
Orthopedic Surgery · Bryn Mawr, PA
At a glance
825 Old Lancaster Rd Ste 100, Bryn Mawr, PA 19010-3234
Published activity: Knee replacement · Lower limb (leg) arthroscopy (minimally invasive joint repair) · Upper limb (arm) arthroscopy (minimally invasive joint repair). View counts and coverage
NPPES record updated May 18, 2022. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
825 Old Lancaster Rd Ste 100Bryn Mawr, PA 19010-3234
Additional reported practice locations
650 Carnegie Blvd Ste 220AMalvern, PA 193550367
Phone: 8003219999
Fax: 2674791321
Education & affiliations
- Medical / professional school
- Harvard Medical School
- Graduation year
- 1981
- CMS specialties
- Orthopedic Surgery
Practice groups
Reported hospital affiliations
- Bryn Mawr Hospital Bryn Mawr, PA
- Chester County Hospital West Chester, PA
- Main Line Hospital Lankenau Wynnewood, PA
- Paoli Hospital Paoli, PA
- Riddle Memorial Hospital Media, PA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Knee replacement | 43 |
| Lower limb (leg) arthroscopy (minimally invasive joint repair) | 35 |
| Upper limb (arm) arthroscopy (minimally invasive joint repair) | 19 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $470.61 |
Reporting companies
| Company | Amount |
|---|---|
| ZIMMER BIOMET HOLDINGS, INC. | $229.90 |
| FERRING PHARMACEUTICALS INC. | $152.23 |
| FIDIA PHARMA USA INC. | $44.33 |
| STRYKER CORPORATION | $23.74 |
| DEPUY SYNTHES SALES INC. | $20.41 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Orthopedic Surgery
- Taxonomy code
- 207X00000X
- Enumeration date
- Mar 24, 2006
- Record updated
- May 18, 2022
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207X00000X · Primary
License reported: MD027634E PA
207X00000X
License reported: 25MA09498600 NJ
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
825 Old Lancaster Rd Ste 100Bryn Mawr, PA 19010-3234
- Phone
- (800) 321-9999
- Fax
- (267) 479-1321
Mailing address
833 CHESTNUT ST STE 520PHILADELPHIA, PA 191074430
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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