William T. Hayduk, ND, PA-C
- Medicare patients, 2024
- 81
- Part D claims, 2024
- 964
- Industry payments
- $772
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 9440 Citrus Ave, Fontana, CA 92335
- Practice phone
- Call (847) 348-8250
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Midwest Anesthesia and Pain Specialists, SC
Fontana, California
Find William Hayduk's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
William T. Hayduk is a physician assistant in Fontana, California
William Hayduk practices at Midwest Anesthesia and Pain Specialists, SC in Fontana, California.
William Hayduk's NPI, 1821363870, was assigned on March 8, 2012. William Hayduk graduated from Rush Medical College of Rush University in 2015. William Hayduk holds Illinois license 085005479.
- NPI
- 1821363870NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648582171
- NPI enumeration date
- March 8, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 348-8250
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
William T. Hayduk practices at Midwest Anesthesia and Pain Specialists, SC in Fontana, California
William Hayduk's primary practice is Midwest Anesthesia and Pain Specialists, SC, at 9440 Citrus Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (847) 348-8250.
- Midwest Anesthesia and Pain Specialists, SC9440 Citrus Ave, Fontana, CA 92335 · San Bernardino CountyPhone(847) 348-8250
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William T. Hayduk is affiliated with 2 sites of care and 1 medical group
William Hayduk's primary practice is Midwest Anesthesia and Pain Specialists, SC in Fontana, California. The medical group on file is MAPS Centers for Pain Control. Dmand AI also links William Hayduk to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at William T. Hayduk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Hayduk practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Midwest Anesthesia and Pain Specialists, SC | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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William T. Hayduk is one of 11,482 physician assistants in California
Physician assistant is William Hayduk's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William Hayduk is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near William Hayduk
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
William T. Hayduk treated 81 Medicare patients in 2024, average age 65
CMS counts 81 Medicare patients who saw William Hayduk in 2024. The largest group is under 65, with 36 patients. 75% of them have arthritis, and 75% have high blood pressure. 53% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts William Hayduk's median patient age at 66, with 56% women.
William Hayduk's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
William Hayduk's Medicare patients by sex, 2024
- Women6074%
- Men2126%
Chronic conditions among William Hayduk's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol68%
- Anxiety46%
- Diabetes43%
- COPD40%
- Mood disorders35%
- Depression31%
Share of Medicare patients with each condition. A patient can have several.
William Hayduk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William T. Hayduk wrote 964 Medicare Part D claims in 2024
In 2024, William Hayduk wrote 964 Medicare Part D claims for 289 patients. 98% of them were for generic drugs.
William Hayduk's Part D claims by kind of drug, 2024
- Generic940 claims98%
- Brand-name24 claims2%
Drug classes CMS tracks in William Hayduk's Part D claims, 2024
- Opioids68%657 of 964 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
William T. Hayduk offers telehealth to Medicare patients
William Hayduk accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists William Hayduk as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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William T. Hayduk received $772 in industry payments in 2025
CMS Open Payments shows 12 general payments to William Hayduk from 9 drug and device companies in 2025. Food and beverage make up the largest share, 74% of the total. Abbott Laboratories paid the most, $372.
General payments to William Hayduk by kind, 2025 to 2025
- Food and beverage$57274%
- Compensation for serving as faculty or as a speaker for a medical education program$20026%
Companies that paid William Hayduk the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
William T. Hayduk graduated from Rush Medical College of Rush University
William Hayduk graduated from Rush Medical College of Rush University in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for William T. Hayduk's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about William T. Hayduk
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William T. Hayduk's NPI number?
William T. Hayduk's NPI number is 1821363870. It was assigned on March 8, 2012, and it is active in the NPI Registry.
What does William T. Hayduk specialize in?
William T. Hayduk is a physician assistant in Fontana, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does William T. Hayduk practice?
William Hayduk practices at 9440 Citrus Ave, Fontana, CA 92335. William Hayduk's primary practice is Midwest Anesthesia and Pain Specialists, SC in Fontana, California. Dmand AI also links William Hayduk to 1 group practice or clinic.
What is William T. Hayduk's office phone number?
The practice phone on file for William Hayduk is (847) 348-8250.
What is William T. Hayduk's medical license number?
William Hayduk holds Illinois license 085005479, one of 2 state licenses on file.
What medical group is William T. Hayduk part of?
William Hayduk is linked to MAPS Centers for Pain Control.
Does William T. Hayduk accept Medicare?
Yes. CMS lists William Hayduk as accepting Medicare assignment.
Does William T. Hayduk offer telehealth?
Yes. The CMS Doctors and Clinicians file lists William Hayduk as offering telehealth services.
How many Medicare patients does William T. Hayduk see?
CMS counts 81 Medicare patients who saw William Hayduk in 2024, with an average age of 65.
Where did William T. Hayduk go to medical school?
William Hayduk graduated from Rush Medical College of Rush University in 2015.
Has William T. Hayduk received payments from drug or device companies?
CMS Open Payments shows $772 in general payments to William Hayduk from 9 companies from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has William T. Hayduk been practicing?
William Hayduk graduated from medical school in 2015, 11 years ago.
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