DR. MARK CLYDE GEBHARDT MD
NPI 1689655094
Orthopaedic Surgery in Boston, MA
About Dr. Mark Clyde Gebhardt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK CLYDE GEBHARDT MD (NPI 1689655094) is an individual orthopaedic surgery provider in Boston, Massachusetts, licensed in Massachusetts (47866) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark Clyde Gebhardt Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Gebhardt reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 98 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Gebhardt's NPI number?
The NPI number for Mark Gebhardt is 1689655094. It was assigned to this individual provider in the NPPES registry on November 11, 2005.
Where is Mark Gebhardt located?
Mark Gebhardt practices at 330 Brookline Ave Bidmc - Stoneman 10, Boston, MA 02215. The listed phone number is (617) 667-2140.
What is Mark Gebhardt's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Mark Gebhardt enrolled in Medicare?
Yes. Mark Gebhardt is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Gebhardt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gebhardt reassigns Medicare benefits to 2 organizations: Beth Israel Deaconess Medical Center, Inc. (Boston, MA) and Children's Orthopaedic Surgery Foundation, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Gebhardt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Gebhardt was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Mark Clyde Gebhardt, MD · NPI 1689655094
Orthopaedic Surgery physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since November 11, 2005.
## Identity
- **NPI:** 1689655094 (Entity type: Individual)
- **Enumerated:** November 11, 2005
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 47866 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 330 BROOKLINE AVE, BIDMC - STONEMAN 10, Boston, MA 02215-5400
- **Phone:** (617) 667-2140 · **Fax:** (617) 667-0227
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Children's Orthopaedic Surgery Foundation, Inc. (NPI 1548344393, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified E05505 (MA); Other E05505 (MA); Medicare UPIN A66233; and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1689655094) · Data from the CMS NPPES public registry.