DR. ALEX THOMAS M.D.
NPI 1265632574
Allergy & Immunology - Allergy in Chicago, IL

Q: What is Alex Thomas's NPI number?

The NPI number for Alex Thomas is 1265632574. It was assigned to this individual provider in the NPPES registry on July 24, 2007.

Q: What is Alex Thomas's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Q: When was this NPI record last updated?

The NPPES record for Alex Thomas was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.

Active since July 24, 2007PECOS EnrolledAccepts Medicare Assignment

4014 N CENTRAL AVE, CHICAGO, IL 60634(773) 283-9594(773) 283-6711 Get Directions Write a Review

NPPES record last updated: November 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Alex Thomas M.d. NPPES

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

DR. ALEX THOMAS M.D. (NPI 1265632574) is an individual allergy provider in Chicago, Illinois, licensed in Illinois (336.135822) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Mount Prospect, and is a graduate of Rush Medical College Of Rush University (2007).

NPPES Registry Identity

NPI1265632574

Entity TypeIndividualMale

Primary Taxonomy207KA0200X

Provider Legal NameDR. ALEX THOMASCredential: M.D.

Location Address4014 N CENTRAL AVEChicago, IL 60634-1832

Mailing Address4014 N Central AveChicago, IL 60634-1832 · (773) 283-9594 · Fax (773) 283-6711

Phone(773) 283-9594

Fax(773) 283-6711

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 2007

Enumeration DateJuly 24, 2007

Last NPPES UpdateNovember 11, 2025

NPPES CertifiedNovember 11, 2025

✔ NPI 1265632574 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians

Taxonomy Code207KA0200X

Licenses✔ Licensed in IL · 336.135822✔ Licensed in WI · 53149

Definition

A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

4014 N CENTRAL AVE, Chicago, IL 60634

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Secondary Practice Location 1

Location 1520 E Northwest HwyMount Prospect, IL 60056-3306 · Phone (847) 255-3050 · Fax (773) 283-6711

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alex Thomas M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2769646561

PECOS Enrollment IDI20150403000610

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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

810 services24 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

370 services31 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

125 services53 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

19 services19 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DOLLY THOMAS MD

Allergy & Immunology

4014 N CENTRAL AVE
CHICAGO, IL 60634

Cook County (773) 283-9594

CENTER FOR ASTHMA & ALLERGY, SC

Allergy & Immunology

4014 N CENTRAL AVE
CHICAGO, IL 60634

Cook County (773) 283-9594

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 Alex Thomas's NPI number?

The NPI number for Alex Thomas is 1265632574. It was assigned to this individual provider in the NPPES registry on July 24, 2007.

Where is Alex Thomas located?

Alex Thomas practices at 4014 N Central Ave, Chicago, IL 60634. The listed phone number is (773) 283-9594.

What is Alex Thomas's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Alex Thomas enrolled in Medicare?

Yes. Alex Thomas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Alex Thomas was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.