Dr. William Hayduk , PA-C, ND
Physician Assistant • Chicago, IL
6457 S Pulaski Rd
Chicago, IL 606295148
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. William Hayduk is listed in NPPES under Physician Assistant.
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NPI assigned on March 8, 2012; this date does not establish years in practice.
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Published CMS data list 136 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 116 service units.
- 20610 — Aspiration and/or injection of fluid from large joint: 20 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 857 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 389 prescription fills, including refills.
- Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) — 70 prescription fills, including refills.
- Cyclobenzaprine Hcl — 57 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 15 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: 110. Middle half: 45 to 306.
Fewer Medicare Part B services than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: 212. Middle half: 76 to 548.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 134 in 2020 to 136 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
6457 S Pulaski Rd
Chicago, IL 606295148
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Midwest Anesthesia And Pain Specialists Sc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Rush Medical College Of Rush University
2015
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
81 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $10,220 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $7,191 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
890 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$28,087 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $1,752.15 across 26 records.
By nature of payment
- Food and Beverage: $952.15 across 24 records.
- Compensation for serving as faculty or as a speaker for a medical education program: $800.00 across 2 records.
Reporting-company totals (3 largest of 10)
- Abbott Laboratories: $1,185.84 across 7 records.
- ABBVIE INC.: $185.03 across 4 records.
- Pacira Pharmaceuticals Incorporated: $120.81 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
11 years (graduated 2015)
CMS Doctors and Clinicians data list 2015 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2012
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Hayduk has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Hayduk as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: 110. Middle half: 45 to 306.
Fewer Medicare Part B services than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: 212. Middle half: 76 to 548.
Medicare-allowed amount
Close to the middle for clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: $9,495. Middle half: $3,730 to $23,698.
A lower Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: $16,580. Middle half: $6,650 to $35,717.
Paid by Medicare
Close to the middle for clinicians listed under Physician Assistant in Chicago, IL (2024, 588 clinicians with data). Median for this group: $7,176. Middle half: $2,794 to $17,605.
A lower Medicare payment amount than 65% of clinicians listed under Physician Assistant in Illinois (2024, 2,422 clinicians with data). Median for this group: $12,415. Middle half: $4,894 to $26,472.
Medicare Part D prescriptions
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Chicago, IL (2024, 651 clinicians with data). Median for this group: 116. Middle half: 41 to 337.
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Illinois (2024, 2,668 clinicians with data). Median for this group: 203. Middle half: 67 to 595.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Physician Assistant in Chicago, IL (2024, 651 clinicians with data). Median for this group: $1,977. Middle half: $320 to $34,048.
A higher Part D drug cost than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,668 clinicians with data). Median for this group: $3,018. Middle half: $535 to $48,132.
1,446 active clinicians are listed under Physician Assistant with a practice address in Chicago, IL (4,929 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
17.4% of these 1,446 clinicians have the CMS telehealth indicator.
63.6% of these 1,446 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services varied from year to year: 134 in 2020 and 136 in 2024.
- 2020: 134
- 2021: 740
- 2022: 94
- 2023: 92
- 2024: 136
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Medicare-allowed amount
Medicare-allowed amount increased 13% from $9,049 in 2020 to $10,220 in 2024.
- 2020: $9,049
- 2021: $23,349
- 2022: $6,313
- 2023: $6,910
- 2024: $10,220
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Paid by Medicare
Paid by Medicare varied from year to year: $6,908 in 2020 and $7,191 in 2024.
- 2020: $6,908
- 2021: $16,755
- 2022: $4,657
- 2023: $4,510
- 2024: $7,191
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 11% from 769 in 2020 to 857 in 2024.
- 2020: 769
- 2021: 857
- 2022: 1,208
- 2023: 817
- 2024: 857
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30-day fills
30-day fills increased 15% from 776 in 2020 to 890 in 2024.
- 2020: 776
- 2021: 895
- 2022: 1,231
- 2023: 833
- 2024: 890
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Part D drug cost
Part D drug cost decreased 27% from $38,718 in 2020 to $28,087 in 2024.
- 2020: $38,718
- 2021: $31,313
- 2022: $58,078
- 2023: $27,399
- 2024: $28,087
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Industry payments (Open Payments)
Industry payments (Open Payments) varied from year to year: $1,622.47 in 2021 and $1,752.15 in 2025.
- 2021: $1,622.47
- 2022: $3,768.86
- 2023: $3,731.53
- 2024: $2,359.37
- 2025: $1,752.15
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 26 records totaling $1,752.15.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Compensation for serving as faculty or as a speaker for a medical education program
Cash or cash equivalent
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PROCLAIM | General | $600.00 |
| Abbott Laboratories |
Compensation for serving as faculty or as a speaker for a medical education program
Cash or cash equivalent
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PROCLAIM | General | $200.00 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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ETERNA | General | $171.56 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $149.29 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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QULIPTA | General | $124.51 |
| Pacira Pharmaceuticals Incorporated |
Food and Beverage
In-kind items and services
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Iovera | General | $120.81 |
| VERTEX PHARMACEUTICALS INCORPORATED |
Food and Beverage
In-kind items and services
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JOURNAVX | General | $29.35 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
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MONOVISC | General | $28.32 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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ETERNA | General | $26.43 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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UBRELVY | General | $24.55 |
| Valinor Pharma, LLC |
Food and Beverage
In-kind items and services
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MOVANTIK | General | $23.51 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $23.20 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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QULIPTA | General | $20.64 |
| Electronic Waveform Lab, Inc. |
Food and Beverage
Cash or cash equivalent
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— | General | $19.64 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
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XTAMPZA | General | $19.43 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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RELISTOR | General | $18.83 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $18.81 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $18.76 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $18.61 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
ZAVZPRET | General | $17.26 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
ZAVZPRET | General | $15.95 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ETERNA | General | $15.36 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
QULIPTA | General | $15.33 |
| Collegium Pharmaceutical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Belbuca | General | $13.77 |
| Electronic Waveform Lab, Inc. |
Food and Beverage
Cash or cash equivalent
|
— | General | $9.23 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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116 | 69 | $425.00 | $75.64 |
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20610
Aspiration and/or injection of fluid from large joint
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20 | 16 | $797.50 | $72.28 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 389 | 11,198 | $16,455.47 | 185 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 70 | 1,995 | $3,561.03 | 36 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 57 | 1,896 | $521.84 | 19 |
| Tramadol Hcl | Tramadol Hcl | 54 | 1,152 | $260.03 | 18 |
| Morphine Sulfate Er | Morphine Sulfate | 45 | 1,247 | $1,812.06 | 23 |
| Gabapentin | Gabapentin | 37 | 1,350 | $663.17 | 16 |
| Oxycodone Hcl | Oxycodone Hcl | 34 | 934 | $1,069.78 | 23 |
| Alprazolam | Alprazolam | 32 | 831 | $454.38 | 11 |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 30 | 732 | $606.83 | 14 |
| Pregabalin | Pregabalin | 28 | 900 | $543.01 | 12 |
| Baclofen | Baclofen | 24 | 720 | $370.09 | — |
| Carisoprodol | Carisoprodol | 17 | 810 | $663.94 | — |
| Meloxicam | Meloxicam | 14 | 450 | $15.26 | — |
| Ibuprofen | Ibuprofen | 13 | 390 | $71.26 | — |
| Lidocaine | Lidocaine | 13 | 420 | $1,018.85 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-12-30NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
NUCC Taxonomy Code: 175F00000X
Diagnoses, treats, and cares for patients, using system of practice that bases treatment of physiological functions and abnormal conditions on natural laws governing human body: Utilizes physiological, psychological, and mechanical methods, such as air, water, light, heat, earth, phototherapy, food and herb therapy, psychotherapy, electrotherapy, physiotherapy, minor and orificial surgery, mechanotherapy, naturopathic corrections and manipulation, and natural methods or modalities, together with natural medicines, natural processed foods, and herbs and nature's remedies. Excludes major surgery, therapeutic use of x ray and radium, and use of drugs, except those assimilable substances containing elements or compounds which are components of body tissues and are physiologically compatible to body processes for maintenance of life.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20150710002422
IL
0648582171
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Midwest Anesthesia And Pain Specialists Sc
1644 E 53rd St, Chicago, IL 606154489
Phone: 6309854700
Midwest Anesthesia And Pain Specialists Sc
3545 Rose St, Franklin Park, IL 601312068
Phone: 8476710555
Midwest Anesthesia And Pain Specialists Sc
4354 W 63rd St, Chicago, IL 606295039
Phone: 7734825800
Midwest Anesthesia And Pain Specialists Sc
2007 75th St, Woodridge, IL 605172308
Phone: 6309854700
Midwest Anesthesia And Pain Specialists Sc
17680 Kedzie Ave, Hazel Crest, IL 604292083
Phone: 7087943347
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Chiropractor
Doctor of Chiropractic
Anesthesiology - Pain Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated March 08, 2012.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Physician Assistants in Chicago
- Emmalynne Pytlowany, PA-C
- Masha Chizhik
- Melissa Duffy, PA-C
- Logan Heck, PA-C
- Summer Ellefson, PA-C
- Aron Tan, PA-C
Mailing Address
6457 S Pulaski Rd
Chicago, IL 606295148