DR. WILLIAM D. JR. COX (M.D.) – Sports Medicine (Orthopaedic Surgery) Physician, NPI 1407928062

DR. WILLIAM D. JR. COX (M.D.) is a healthcare provider. based in Crystal lake, Illinois. specializing in Sports Medicine (Orthopaedic Surgery) Physician. They hold the professional credentials M.D.. They hold a License No. 036080933 (IL). The NPI Number for DR. WILLIAM D. JR. COX (M.D.) is 1407928062

Main info

Male
Name
DR. WILLIAM D. JR. COX (M.D.)
NPI
1407928062
Phone
(815) 356-5200
Address
420 N IL ROUTE 31
Enumeration Date
15 November 2006
Last Update Date
19 October 2018
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience57
Completeness75
Years active:19State licenses:1Digital endpointsOther names

Provider Addresses for DR. WILLIAM D. JR. COX (M.D.)

  • 420 N IL ROUTE 31

    CRYSTAL LAKE, IL 60012

    Phone: (815) 356-5200

    Fax: (815) 356-5262

    Type: Location

  • 10370 Haligus Rd Ste 201

    Huntley, IL 601429582

    Phone: (815) 356-5200

    Fax: (815) 356-5262

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-01-05

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20100105000641ISports MedicineILTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60012)

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Provider's Procedures

DR. WILLIAM D. JR. COX (M.D.) performs procedures in Sports Medicine (Orthopaedic Surgery) Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
SPORTS MEDICINEIL73562X-ray of knee, 3 views138112

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Frequently asked questions

Is DR. WILLIAM D. JR. COX (M.D.) listed with a National Provider Identifier?
Yes — DR. WILLIAM D. JR. COX (M.D.) has NPI 1407928062 on file in the registry.
Is DR. WILLIAM D. JR. COX (M.D.) still an active registrant?
DR. WILLIAM D. JR. COX (M.D.) carries an active NPI according to the public dataset.
What kind of doctor is DR. WILLIAM D. JR. COX (M.D.)?
DR. WILLIAM D. JR. COX (M.D.) is associated with Sports Medicine (Orthopaedic Surgery) Physician in the directory — Clinical services aligned with this taxonomy classification.
What locale is associated with DR. WILLIAM D. JR. COX (M.D.)?
Directory geography for DR. WILLIAM D. JR. COX (M.D.) centers on Crystal Lake, Illinois.
Can I trust this NPI listing for DR. WILLIAM D. JR. COX (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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