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DR. WILLIAM D. COX JR. M.D.
NPI 1407928062
Orthopaedic Surgery - Sports Medicine in Crystal Lake, IL

Active since November 15, 2006PECOS Enrolled
420 N IL ROUTE 31, CRYSTAL LAKE, IL 60012(815) 356-5200(815) 356-5262 Get Directions Write a Review

NPPES record last updated: October 19, 2018. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 19, 2018, Jul 31, 2017, Jul 13, 2017 and 1 more (4 updates tracked since 2017).

About Dr. William D. Cox Jr. M.d. NPPES

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

DR. WILLIAM D. COX JR. M.D. (NPI 1407928062) is an individual sports medicine provider in Crystal Lake, Illinois, licensed in Illinois (036080933) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Huntley.

NPPES Registry Identity

NPI1407928062
Entity TypeIndividualMale
Primary Taxonomy207XX0005X
Provider Legal NameDR. WILLIAM D. COX JR.Credential: M.D.
Location Address420 N IL ROUTE 31Crystal Lake, IL 60012
Mailing Address420 N Il Route 31Crystal Lake, IL 60012-3709 · (815) 356-5200 · Fax (815) 356-5262
Phone(815) 356-5200
Fax(815) 356-5262
Sole ProprietorNo
Enumeration DateNovember 15, 2006
Last NPPES UpdateOctober 19, 20184 updates tracked since enumeration
✔ NPI 1407928062 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207XX0005X
License✔ Licensed in IL · 036080933
Definition
An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License 036080933 (IL)
420 N IL ROUTE 31, Crystal Lake, IL 60012
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Secondary Practice Location 1

Location 110370 Haligus Rd Ste 201Huntley, IL 60142-9582 · Phone (815) 356-5200 · Fax (815) 356-5262

Other Identifiers 2

Other036080933IL · State License
Medicaid036080933IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William D. Cox Jr. M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

NORTHERN ILLINOIS MEDICAL CENTER
Durable Medical Equipment & Medical Supplies
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (847) 854-7250
DR. SAVAN DIXIT PATEL MD
Orthopaedic Surgery (Sports Medicine)
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 356-5200
DR. TIMOTHY G HAVENHILL M.D.
Orthopaedic Surgery (Hand Surgery)
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 356-5200
KATELYN ST MARTIN PA-C
Physician Assistant
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 356-5200
DR. SAM J BIAFORA M.D.
Orthopaedic Surgery (Hand Surgery)
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 356-5200
KAREN A SZUMANSKI OT
Occupational Therapist
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 356-5200
MR. MICHAEL G HUMPHREY PT
Physical Therapist
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 356-5200
MARK ANDREW ROTERT NP
Nurse Practitioner (Family)
420 N IL ROUTE 31
CRYSTAL LAKE, IL 60012
McHenry County (815) 788-2018

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 Cox's NPI number?

The NPI number for William Cox is 1407928062. It was assigned to this individual provider in the NPPES registry on November 15, 2006.

Where is William Cox located?

William Cox practices at 420 N Il Route 31, Crystal Lake, IL 60012. The listed phone number is (815) 356-5200.

What is William Cox's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Is William Cox enrolled in Medicare?

Yes. William Cox is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Cox was last updated on October 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.