DR. WILLIAM J SADLACK M.D.
NPI 1104819168
Orthopaedic Surgery in Bethesda, MD

Active since August 25, 2005
6420 ROCKLEDGE DR, SUITE 2200, BETHESDA, MD 20817(301) 530-3220(301) 530-4120 Get Directions Write a Review

NPPES record last updated: May 9, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William J Sadlack M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM J SADLACK M.D. (NPI 1104819168) is an individual orthopaedic surgery provider in Bethesda, Maryland, licensed in Maryland (D0019207) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1104819168
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. WILLIAM J SADLACKCredential: M.D.
Location Address6420 ROCKLEDGE DR, SUITE 2200Bethesda, MD 20817-7837
Mailing AddressPo Box 791372Baltimore, MD 21279-1372
Fax(301) 530-4120
Sole ProprietorNo
Enumeration DateAugust 25, 2005
Last NPPES UpdateMay 9, 2013
NPI 1104819168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License Licensed in MD · D0019207
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
6420 ROCKLEDGE DR, Bethesda, MD 20817

Other Identifiers 5

Medicaid415096100MD
Other9954Carefirst Bcbs Provider #
Medicare UPINB93154
Medicare ID-Type UnspecifiedSA074588
Medicare PIN139461DC

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.

Ophthalmology
6420 ROCKLEDGE DR, SUITE 4900
BETHESDA, MD 20817
Hospitalist
6420 ROCKLEDGE DR, 2200
BETHESDA, MD 20817
Nurse Practitioner (Adult Health)
6420 ROCKLEDGE DR, SUITE 3900
BETHESDA, MD 20817
Plastic Surgery
6420 ROCKLEDGE DR, SUITE 2300
BETHESDA, MD 20817
Pharmacy (Community/Retail Pharmacy)
6420 ROCKLEDGE DR
BETHESDA, MD 20817
Internal Medicine
6420 ROCKLEDGE DR
BETHESDA, MD 20817
Psychiatry & Neurology (Neurology)
6420 ROCKLEDGE DR, #2500
BETHESDA, MD 20817
Clinic/Center (Ambulatory Surgical)
6420 ROCKLEDGE DR, SUITE 4300
BETHESDA, MD 20817

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 William Sadlack's NPI number?

The NPI number for William Sadlack is 1104819168. It was assigned to this individual provider in the NPPES registry on August 25, 2005.

Where is William Sadlack located?

William Sadlack practices at 6420 Rockledge Dr Suite 2200, Bethesda, MD 20817. The listed phone number is (301) 530-3220.

What is William Sadlack's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

When was this NPI record last updated?

The NPPES record for William Sadlack was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.