Data Notice: All results sourced from the public CMS NPPES NPI Registry (45 CFR Part 162), for healthcare administrative use only (credentialing, billing, insurance verification). Not for law enforcement or legal proceedings. Not affiliated with CMS, HHS, or the US Government. Verify critical details at npiregistry.cms.hhs.gov. No queries stored.
Export Provider Record NPI 1144212382
William A MartinezMD
Active
NPI Number1144212382
NPI TypeNPI-1 Individual
SpecialtyFamily Medicine
Provider Details
NPI1144212382
NPI TypeNPI-1 Individual
StatusActive
Enumeration Date2005-08-15
Last Updated2021-12-09
Mailing Address1870 W Winchester Rd, Suite 145
Libertyville, IL 60048-5358
United States
Phone: (847) 996-0700 | Fax: (847) 996-0679
📍 View Map
Primary Practice Address1870 W Winchester Rd, Suite 145
Libertyville, IL 60048-5358
United States
Phone: (847) 996-0700 | Fax: (847) 996-0679
📍 View Map
Other Identifiers
IssuerStateNumberOther Issuer
MEDICAIDIL036099225-
Taxonomy / Specialty
PrimaryTaxonomy Code & DescriptionStateLicense Number
Yes207Q00000X – Family MedicineIL036099225
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About NPI 1144212382

William A Martinez MD is a healthcare provider registered in the CMS NPPES NPI Registry with NPI number 1144212382. The primary specialty listed is Family Medicine. The provider is located in Libertyville, IL. This NPI is classified as a Type 1 (Individual) NPI and is currently active. The NPI was first enumerated (assigned) on 2005-08-15. All data is sourced directly from the official CMS NPPES public API and is updated daily.

Frequently Asked Questions

What is NPI 1144212382?

NPI 1144212382 belongs to William A Martinez MD, a Family Medicine in Libertyville, IL. It is a Type 1 Individual NPI registered in the CMS NPPES NPI Registry.

Is NPI 1144212382 active?

The current status of NPI 1144212382 in the NPPES registry is Active. The record was last updated on 2021-12-09.

What specialty is NPI 1144212382?

NPI 1144212382 is classified under the taxonomy Family Medicine. Taxonomy codes in NPPES are maintained by the National Uniform Claim Committee (NUCC) and identify the provider's type, classification, and specialization.

How do I verify NPI 1144212382?

You can verify NPI 1144212382 at the official CMS NPPES website at npiregistry.cms.hhs.gov or using our free NPI Lookup tool above. All data shown on this page is sourced directly from the official NPPES public API and is updated daily by CMS.

What address is on file for NPI 1144212382?

The primary practice address on file for NPI 1144212382 is 1870 W Winchester Rd, Libertyville, IL 60048-5358. This address is registered in the NPPES system and providers are required to update it within 30 days of any change.

When was NPI 1144212382 issued?

NPI 1144212382 was first issued (enumerated) on 2005-08-15. The NPPES record was last updated on 2021-12-09.

Practice Location Map

William A Martinez is located at 1870 W Winchester Rd, Libertyville, IL. Use the map below to find directions or verify the practice location.

📍 1870 W Winchester Rd, Libertyville, IL 60048-5358  ·  Open in Google Maps ↗

Related Healthcare Providers

The following providers share the same practice location, specialty, or state as William A Martinez. All records sourced from the CMS NPPES registry.

License Information

The following state license numbers are on file in the NPPES registry for NPI 1144212382. For license status verification, contact the relevant state licensing board directly.

Specialty / TaxonomyLicense NumberState
Family Medicine036099225IL
Data Verified from CMS NPPES Last synced: 2026-08-17 · Source: npiregistry.cms.hhs.gov · 45 CFR Part 162