MARK A TOMCZAK CRNA
NPI 1235188533
Nurse Anesthetist, Certified Registered in Lansing, IL

Active since May 06, 2006PECOS EnrolledAccepts Medicare Assignment
18221 TORRENCE AVE, SUITE 1B, LANSING, IL 60438(708) 895-9450(708) 895-9455 Get Directions Write a Review

NPPES record last updated: April 20, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mark A Tomczak Crna NPPES

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

MARK A TOMCZAK CRNA (NPI 1235188533) is an individual nurse anesthetist, certified registered in Lansing, Illinois, licensed in Indiana (28118620A) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1998).

NPPES Registry Identity

NPI1235188533
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMARK A TOMCZAKCredential: CRNA
Location Address18221 TORRENCE AVE, SUITE 1BLansing, IL 60438-2870
Mailing Address18221 Torrence AveLansing, IL 60438-2870 · (708) 895-9450 · Fax (708) 895-9455
Fax(708) 895-9455
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateMay 6, 2006
Last NPPES UpdateApril 20, 2023
NPPES CertifiedApril 20, 2023
✔ NPI 1235188533 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in IN · 28118620A
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedSpecialistTaxonomy 174400000X · License 209002567 (IL)
18221 TORRENCE AVE, Lansing, IL 60438

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark A Tomczak Crna 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 ID840271151
PECOS Enrollment IDI20040525000058, I20041019000180
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

3

Medicare enrollment records show Mark Tomczak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anesthesiology
19110 DARVIN DR STE A
Mokena, IL 60448
  • Reassigned Medicare billing, Illinois and Indiana enrollments
  • 63 clinicians in this Medicare group
Anesthesiology
700 E BEARDSLEY AVE STE 209
Elkhart, IN 46514
  • Reassigned Medicare billing, Indiana enrollment
  • Medicare enrollment name: Great Lakes Anesthesia PC
  • 60 clinicians in this Medicare group
Anesthesiology
28 N PALAFOX ST
Pensacola, FL 32502
  • Reassigned Medicare billing, Indiana enrollment
  • 57 clinicians in this Medicare group

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 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.

Injection, propofol, 10 mg J2704
Propofol is a medication given via injection to help you relax or sleep during surgery or other medical procedures. The 10 mg dosage refers to the amount of medication you'll receive. It's administered by a healthcare professional and monitored closely for safety.
435 services27 patients
Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
20 services19 patients
Anesthesia for other procedure on nose and sinuses 00160
Anesthesia for procedures on the nose and sinuses involves administering medication to block sensation, ensuring comfort during the procedure. It can be local (numbing a specific area) or general (you're asleep). This helps prevent pain and discomfort during the procedure.
17 services17 patients
Anesthesia for incision of ear drum 00126
Anesthesia for incision of the ear drum is a procedure where medication is given to numb the ear area. This helps to prevent any discomfort or pain during the incision. It can be either local or general anesthesia, depending on the specifics of your case.
11 services11 patients
Anesthesia for other procedure on nose and sinuses 00160
Anesthesia for procedures on the nose and sinuses involves administering medication to block sensation, ensuring comfort during the procedure. It can be local (numbing a specific area) or general (you're asleep). This helps prevent pain and discomfort during the procedure.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60438 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
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 12

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

Anesthesiology
18221 TORRENCE AVE
LANSING, IL 60438
Clinic/Center (Medical Specialty)
18221 TORRENCE AVE, SUITE 1C
LANSING, IL 60438
Nurse Anesthetist, Certified Registered
18221 TORRENCE AVE
LANSING, IL 60438
Nurse Anesthetist, Certified Registered
18221 TORRENCE AVE, SUITE 1-B
LANSING, IL 60438
Nurse Anesthetist, Certified Registered
18221 TORRENCE AVE
LANSING, IL 60438
Nurse Anesthetist, Certified Registered
18221 TORRENCE AVE
LANSING, IL 60438
Nurse Anesthetist, Certified Registered
18221 TORRENCE AVE
LANSING, IL 60438
Nurse Anesthetist, Certified Registered
18221 TORRENCE AVE
LANSING, IL 60438

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 Mark Tomczak's NPI number?

The NPI number for Mark Tomczak is 1235188533. It was assigned to this individual provider in the NPPES registry on May 6, 2006.

Where is Mark Tomczak located?

Mark Tomczak practices at 18221 Torrence Ave Suite 1B, Lansing, IL 60438. The listed phone number is (708) 895-9450.

What is Mark Tomczak's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Mark Tomczak enrolled in Medicare?

Yes. Mark Tomczak 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.

Which organizations bill Medicare for Mark Tomczak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Tomczak reassigns Medicare benefits to 3 organizations: Elite Anesthesia Providers, Ltd (Mokena, IL), Great Lakes Anesthesia, P.C. (Elkhart, IN) and Ams Northern Indiana LLC (Pensacola, FL). 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 Mark Tomczak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Tomczak was last updated on April 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.