DR. WILLIAM A MARTINEZ (MD) – Family Medicine Physician, NPI 1144212382

DR. WILLIAM A MARTINEZ (MD) is a healthcare provider. based in Libertyville, Illinois. specializing in FAMILY PRACTICE. They hold the professional credentials MD. They hold a License No. 036099225 (IL). The NPI Number for DR. WILLIAM A MARTINEZ (MD) is 1144212382

Main info

Male
Sole Proprietor
40 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM A MARTINEZ (MD)
NPI
1144212382
Phone
(847) 996-0700
Address
1870 W WINCHESTER RD
Enumeration Date
15 August 2005
Last Update Date
9 December 2021

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8479960700
Graduation Year
1986 (40 years ago)
PAC ID
7911006747
Professional Enrollment ID
I20070620000244
Address ID
IL600485359LI1870XRDXX406
Telehealth
Yes

Contacts

Secure Messaging
wmartinez234652@direct.myadvocateaurora.org
FHIR Endpoint
https://epicfhir.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

5,037 FAMILY PRACTICE in IL

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Provider Addresses for DR. WILLIAM A MARTINEZ (MD)

  • West Winchester Road, Mundelein, Lake, Illinois, 60060, United States

    SUITE 145

    LIBERTYVILLE, IL 600485358

    Phone: (847) 996-0700

    Fax: (847) 996-0679

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 59 Open Payments records for all available years, with a total value of $1,633.

Total Amount is formed as General ($1,633) + Research ($0) + Ownership ($0) = $1,633.

Last reported payment date: 2024-11-19 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($473).

Total Amount

$1,633

General + Research + Ownership

Payments

59

Total payment records

General Amount

$1,633

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-19

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

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: 2007-06-20

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
I20070620000244IFamily PracticeILTBD

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

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes7632$0
99214Established patient office or other outpatient visit, 30-39 minutes6538$0
36415Insertion of needle into vein for collection of blood sample4839$0
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit4545$0
G0444Annual depression screening, 5 to 15 minutes4343$0
View full utilization report →

Insurance plans in this area (ZIP 60048)

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Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What number should I use to identify DR. WILLIAM A MARTINEZ (MD) for billing?
Administrative and clinical systems typically use NPI 1144212382 for DR. WILLIAM A MARTINEZ (MD).
Is DR. WILLIAM A MARTINEZ (MD)'s NPI status active today?
Active status means DR. WILLIAM A MARTINEZ (MD)'s NPI record is not deactivated in the public file.
What does the directory say DR. WILLIAM A MARTINEZ (MD) does?
Insurance directories may phrase it differently, but here DR. WILLIAM A MARTINEZ (MD) maps to Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What geographic area is tied to DR. WILLIAM A MARTINEZ (MD)?
DR. WILLIAM A MARTINEZ (MD) is associated with Libertyville, Illinois in the same public data insurers reference.
Why is information missing for DR. WILLIAM A MARTINEZ (MD)?
Providers choose how much contact data to publish. Missing fields do not mean the profile is fake.

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