1. Home
  2. Directory
  3. Illinois
  4. Elgin
  5. Internal Medicine
  6. NPI Profile

THOMAS L. CAO MD
NPI 1194797266
Internal Medicine - Hematology & Oncology in Elgin, IL

Active since February 03, 2006PECOS EnrolledAccepts Medicare Assignment
1435 NORTH RANDALL ROAD, SUITE 402, ELGIN, IL 60123(847) 717-6860(847) 717-6872 Get Directions Write a Review

NPPES record last updated: March 25, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Thomas L. Cao Md NPPES

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

THOMAS L. CAO MD (NPI 1194797266) is an individual hematology & oncology provider in Elgin, Illinois, licensed in Illinois (036098274) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Other (1983).

NPPES Registry Identity

NPI1194797266
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameTHOMAS L. CAOCredential: MD
Location Address1435 NORTH RANDALL ROAD, SUITE 402Elgin, IL 60123
Mailing Address1600 N Randall Rd, Ste 135Elgin, IL 60123-7810 · (847) 717-6860 · Fax (847) 717-6872
Phone(847) 717-6860
Fax(847) 717-6872
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateFebruary 3, 2006
Last NPPES UpdateMarch 25, 2019
✔ NPI 1194797266 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in IL · 036098274
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1435 NORTH RANDALL ROAD, Elgin, IL 60123
Open in Google Maps ↗

Other Names 1

Other Name (5)Thomas Lequn Cao

Other Identifiers 2

Medicaid036098274IL
Other04528012IL · Bc/bs

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

Thomas L. Cao Md 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 ID244216513
PECOS Enrollment IDI20040629000035
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 5

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.
415 services84 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
207 services73 patients
Insertion of needle into vein (3 years or older) 36410
This procedure involves placing a small needle into a vein, typically in the arm. It's done to collect blood for testing or to deliver medication. You may feel a quick pinch, but it's usually over in seconds. It's a common, safe procedure.
190 services50 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
38 services27 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.
33 services25 patients

Hospital Affiliations CMS Care Compare 2

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

Advocate Sherman Hospital

Acute Care Hospitals · Elgin, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140030
Location1425 North Randall RoadElgin, IL 60123 · Kane County
Emergency services Birthing friendly

Presence Saint Joseph Hospital - Elgin

Acute Care Hospitals · Elgin, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140217
Location77 N Airlite StreetElgin, IL 60123 · Kane County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60123 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
$181.38 typical visit price
range $59.81 – $181.38
Typical copayment $45.34 (range $14.95 – $45.34)
Most-billed visit code 99205
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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
9 suppliers18 claims44 services$6.18 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
2 suppliers15 claims15 services$204.13 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Thomas Cao's NPI number?

The NPI number for Thomas Cao is 1194797266. It was assigned to this individual provider in the NPPES registry on February 3, 2006. The provider is also known as Thomas Lequn Cao.

Where is Thomas Cao located?

Thomas Cao practices at 1435 North Randall Road Suite 402, Elgin, IL 60123. The listed phone number is (847) 717-6860.

What is Thomas Cao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Thomas Cao enrolled in Medicare?

Yes. Thomas Cao 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.

Is Thomas Cao affiliated with any hospitals?

According to CMS data, Thomas Cao is affiliated with Advocate Sherman Hospital and Presence Saint Joseph Hospital - Elgin.

When was this NPI record last updated?

The NPPES record for Thomas Cao was last updated on March 25, 2019. 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.