Dr. William Patrick Zeleznak, MD
- Part D claims, 2024
- 19
- Hospital affiliations
- 1
- Industry payments
- $78
- Medical groups
- 2
- State license
- 1
- Practice address
- 900 Eighth Avenue, Fort Worth, TX 76104
- Practice phone
- Call (817) 336-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zeleznak's professional email, personal email and mobile number
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Dr. William Patrick Zeleznak is an anesthesiologist in Fort Worth, Texas
Dr. Zeleznak practices at Medical City Fort Worth Hospital in Fort Worth, Texas, part of HCA Healthcare.
Dr. Zeleznak's NPI, 1184111759, was assigned on April 18, 2018. Dr. Zeleznak holds Texas license V5857.
- NPI
- 1184111759NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244612281
- NPI enumeration date
- April 18, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (817) 336-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Patrick Zeleznak practices at Medical City Fort Worth Hospital in Fort Worth, Texas
Dr. Zeleznak's primary practice is Medical City Fort Worth Hospital, at 900 Eighth Avenue, Fort Worth, TX 76104 in Tarrant County. The practice phone is (817) 336-2100.
- Medical City Fort Worth Hospital900 Eighth Avenue, Fort Worth, TX 76104 · Tarrant CountyPhone(817) 336-2100
Source: Dmand AI Affiliation Data
Dr. William Patrick Zeleznak is affiliated with 1 site of care and 2 medical groups
Dr. Zeleznak's primary practice is Medical City Fort Worth Hospital in Fort Worth, Texas, part of HCA Healthcare. The medical group on file is NorthStar Anesthesia. Dmand AI also links Dr. Zeleznak to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Patrick Zeleznak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zeleznak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medical City Fort Worth Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Patrick Zeleznak is one of 4,073 anesthesiologists in Texas
Anesthesiology is Dr. Zeleznak's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Zeleznak is licensed in Texas.
Specialties and state licenses
- Anesthesiology, TexasPrimary
Anesthesiologists near Dr. Zeleznak
Counts of anesthesiologists 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
Dr. William Patrick Zeleznak's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Zeleznak's median patient age at 67, with 67% women.
Dr. Zeleznak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. William Patrick Zeleznak wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Zeleznak wrote 19 Medicare Part D claims for 19 patients. 100% of them were for generic drugs. They cover 1 drug, with $93 in total drug cost.
Dr. Zeleznak's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. William Patrick Zeleznak takes part in Medicare
Dr. Zeleznak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. William Patrick Zeleznak received $78 in industry payments in 2025
CMS Open Payments shows 3 general payments to Dr. Zeleznak from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $43.
Companies that paid Dr. Zeleznak the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Patrick Zeleznak'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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) |
| 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 Dr. William Patrick Zeleznak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Patrick Zeleznak's NPI number?
Dr. William Patrick Zeleznak's NPI number is 1184111759. It was assigned on April 18, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. William Patrick Zeleznak?
Dr. William Patrick Zeleznak is an anesthesiologist in Fort Worth, Texas. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. William Patrick Zeleznak practice?
Dr. Zeleznak practices at 900 Eighth Avenue, Fort Worth, TX 76104. Dr. Zeleznak's primary practice is Medical City Fort Worth Hospital in Fort Worth, Texas, part of HCA Healthcare. Dmand AI also links Dr. Zeleznak to 1 medical group.
What is Dr. William Patrick Zeleznak's office phone number?
The practice phone on file for Dr. Zeleznak is (817) 336-2100.
What is Dr. William Patrick Zeleznak's medical license number?
Dr. Zeleznak holds Texas license V5857.
Which hospitals is Dr. William Patrick Zeleznak affiliated with?
Dr. Zeleznak practices at Medical City Fort Worth Hospital in Fort Worth, Texas.
What medical group is Dr. William Patrick Zeleznak part of?
Dr. Zeleznak is linked to NorthStar Anesthesia. Dmand AI links Dr. Zeleznak to 1 more medical group.
Does Dr. William Patrick Zeleznak accept Medicare?
Yes. CMS lists Dr. Zeleznak as accepting Medicare assignment.
What drugs does Dr. William Patrick Zeleznak prescribe most?
In 2024 Medicare Part D data, Dr. Zeleznak's most prescribed drugs by claims were Mupirocin.
Has Dr. William Patrick Zeleznak received payments from drug or device companies?
CMS Open Payments shows $78 in general payments to Dr. Zeleznak from 3 companies from 2025 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. William Patrick Zeleznak been practicing?
Dr. Zeleznak graduated from medical school in 2018, 8 years ago.
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