JEFFREY K ZAWACKI (M.D.) – Surgery Physician, NPI 1790774750

JEFFREY K ZAWACKI (M.D.) is a healthcare provider. based in Berwyn, Illinois. specializing in GENERAL SURGERY, COLORECTAL SURGERY (PROCTOLOGY). They hold the professional credentials M.D.. They hold a License No. 036-089882 (IL). The NPI Number for JEFFREY K ZAWACKI (M.D.) is 1790774750

Main info

Male
34 Years Of Experience
Accepts Medicare Assignment
Name
JEFFREY K ZAWACKI (M.D.)
NPI
1790774750
Phone
(708) 484-0621
Address
3245 GROVE AVE
Enumeration Date
20 October 2005
Last Update Date
9 March 2011

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
7087830700
Graduation Year
1992 (34 years ago)
PAC ID
0042239386
Group Practice PAC ID
6305109547
Professional Enrollment ID
I20051116000588
Address ID
IL604023429BE3249XAVEX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,423 GENERAL SURGERY in IL

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Provider Addresses for JEFFREY K ZAWACKI (M.D.)

  • 3245, Grove Avenue, Berwyn, Cook County, Illinois, 60402, United States

    SUITE 202

    BERWYN, IL 604023474

    Phone: (708) 484-0621

    Fax: (708) 484-0250

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 23 Open Payments records for all available years, with a total value of $1,840.

Total Amount is formed as General ($1,840) + Research ($0) + Ownership ($0) = $1,840.

Last reported payment date: 2024-11-06 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($1,000).

Total Amount

$1,840

General + Research + Ownership

Payments

23

Total payment records

General Amount

$1,840

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-06

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-11-16

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20051116000588IGeneral SurgeryILTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes175106$0
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes7472$0
99214Established patient office or other outpatient visit, 30-39 minutes6853$0
46600Diagnostic exam of anus using an endoscope4038$0
99213Established patient office or other outpatient visit, 20-29 minutes3833$0
View full utilization report →

Insurance plans in this area (ZIP 60402)

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Provider's Procedures

JEFFREY K ZAWACKI (M.D.) performs procedures in GENERAL SURGERY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
GENERAL SURGERYIL46600Diagnostic examination of the anus using an endoscope3130

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6305109547View full group profile
NameSpecialtyState
Family PracticeIL
Endocrinology, Internal MedicineIL
E N D O C R I N O L O G YIL
P S Y C H I A T R YIL
Family PracticeIL
Internal MedicineIL
P S Y C H I A T R YTN
O B S T E T R I C S/ G Y N E C O L O G YIL
Internal MedicineIL
Internal MedicineIL

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Frequently asked questions

How do payers reference JEFFREY K ZAWACKI (M.D.)?
For JEFFREY K ZAWACKI (M.D.), use NPI 1790774750 as the unique 10-digit identifier.
Would JEFFREY K ZAWACKI (M.D.) appear as active to a payer?
You can treat JEFFREY K ZAWACKI (M.D.) as active for directory purposes; confirm clinical privileges separately.
What clinical focus is listed for JEFFREY K ZAWACKI (M.D.)?
At a glance, JEFFREY K ZAWACKI (M.D.) is tied to Surgery Physician. Clinical services aligned with this taxonomy classification.
Is JEFFREY K ZAWACKI (M.D.) located near Berwyn?
JEFFREY K ZAWACKI (M.D.) currently maps to Berwyn, Illinois in this extract.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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