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DR. ASHA THOMAS M.D.
NPI 1124171459
Internal Medicine in Westchester, IL

Active since January 19, 2007PECOS Enrolled
2205 ENTERPRISE DR STE 520, WESTCHESTER, IL 60154(708) 938-5783(708) 938-5941 Get Directions Write a Review

NPPES record last updated: November 30, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 30, 2018, May 12, 2017, Apr 25, 2017 and 1 more (4 updates tracked since 2017).

About Dr. Asha Thomas M.d. NPPES

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

DR. ASHA THOMAS M.D. (NPI 1124171459) is an individual internal medicine provider in Westchester, Illinois, licensed in Illinois (036-089204) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Adventist La Grange Memorial Hospital, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1124171459
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ASHA THOMASCredential: M.D.
Location Address2205 ENTERPRISE DR STE 520Westchester, IL 60154-5820
Mailing Address2205 Enterprise Dr Ste 520Westchester, IL 60154-5820 · (708) 938-5783 · Fax (708) 938-5941
Phone(708) 938-5783
Fax(708) 938-5941
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateJanuary 19, 2007
Last NPPES UpdateNovember 30, 20184 updates tracked since enumeration
✔ NPI 1124171459 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036-089204
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 036089204 (IL)
2205 ENTERPRISE DR STE 520, Westchester, IL 60154
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Other Identifiers 1

Other214881IL · Medicare Group Ptan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Asha Thomas M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9436253770
PECOS Enrollment IDI20070327000386
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.

Medicare Billing Reassignments

6

Medicare enrollment records show Asha Thomas reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Westbrook Wellness Internal Medicine, Sc
Same address
Internal Medicine
2205 ENTERPRISE DR STE 520
Westchester, IL 60154
  • Reassigned Medicare billing, Illinois enrollment
NPI 1982063343 (630) 697-4000
Intermed, Ltd
2.7 mi
Internal Medicine
418 SHERWOOD RD
Lagrange Park, IL 60526
  • Reassigned Medicare billing, Illinois enrollment
  • 2 clinicians in this Medicare group
NPI 1780759357 (708) 482-3600
Mount Sinai Community Foundation
5.9 mi
Internal Medicine
610 S MAPLE AVE, STE 2100
Oak Park, IL 60304
  • Reassigned Medicare billing, Illinois enrollment
  • 646 clinicians in this Medicare group
NPI 1215046347 (708) 848-7373
Mercy Harvard Hospital Inc
54 mi
Critical Access
901 GRANT ST
Harvard, IL 60033
  • Reassigned Medicare billing, Illinois enrollment
  • 382 clinicians in this Medicare group
NPI 1427001445 (815) 943-5431
Rockford Health Physicians
63 mi
Multi-Specialty
8201 E RIVERSIDE BLVD
Rockford, IL 61114
  • Reassigned Medicare billing, Illinois enrollment
  • 1,375 clinicians in this Medicare group
NPI 1043242886 (608) 314-2428
Mercy Health System Corporation
81 mi
Multi-Specialty
580 N WASHINGTON ST
Janesville, WI 53548
  • Reassigned Medicare billing, Illinois enrollment
  • 671 clinicians in this Medicare group
NPI 1598718603 (608) 741-7630

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

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.

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.
173 services102 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
147 services144 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
135 services93 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
92 services59 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
86 services62 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
85 services85 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adventist La Grange Memorial Hospital

Acute Care Hospitals · La Grange, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140065
Location5101 S Willow Springs RdLa Grange, IL 60525 · Cook County
Emergency services

Adventist Hinsdale Hospital

Acute Care Hospitals · Hinsdale, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140122
Location120 North Oak StHinsdale, IL 60521 · Du Page County
Emergency services Birthing friendly

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL
4/5 CMS rating
OwnershipProprietary
CMS Certification Number140200
Location155 East Brush Hill RoadElmhurst, IL 60126 · Du Page County
Emergency services Birthing friendly

Javon Bea Hospital

Acute Care Hospitals · Rockford, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140239
Location8201 E Riverside BlvdRockford, IL 61114 · Winnebago County
Emergency services Birthing friendly

Uchicago Medicine Adventhealth Bolingbrook

Acute Care Hospitals · Bolingbrook, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140304
Location500 Remington BoulevardBolingbrook, IL 60440 · Will County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60154 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
8 suppliers15 claims29 services$5.85 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier11 claims12 services$215.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

WESTBROOK WELLNESS INTERNAL MEDICINE, SC
Internal Medicine
2205 ENTERPRISE DR STE 520
WESTCHESTER, IL 60154
Cook County (630) 697-4000

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 Asha Thomas's NPI number?

The NPI number for Asha Thomas is 1124171459. It was assigned to this individual provider in the NPPES registry on January 19, 2007.

Where is Asha Thomas located?

Asha Thomas practices at 2205 Enterprise Dr Ste 520, Westchester, IL 60154. The listed phone number is (708) 938-5783.

What is Asha Thomas's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Asha Thomas enrolled in Medicare?

Yes. Asha Thomas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Asha Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Asha Thomas reassigns Medicare benefits to 6 organizations: Westbrook Wellness Internal Medicine, Sc (Westchester, IL), Intermed, Ltd (Lagrange Park, IL), Mount Sinai Community Foundation (Oak Park, IL), Mercy Harvard Hospital Inc (Harvard, IL), Rockford Health Physicians (Rockford, IL) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Asha Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Asha Thomas accept?

Health plans from Anthem Blue Cross and Blue Shield list Asha Thomas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Asha Thomas affiliated with any hospitals?

According to CMS data, Asha Thomas is affiliated with Adventist La Grange Memorial Hospital, Adventist Hinsdale Hospital, Elmhurst Memorial Hospital, Javon Bea Hospital and Uchicago Medicine Adventhealth Bolingbrook.

When was this NPI record last updated?

The NPPES record for Asha Thomas was last updated on November 30, 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.