Dr. Donald John Siwek, MD
- Medicare services, 2023
- 495
- Part D claims, 2024
- 71
- Clinical trials
- 1
- Hospital affiliations
- 2
- Industry payments
- $64,411
- Practice address
- 9848 North Beach Street, Fort Worth, TX 76244
- Practice phone
- Call (940) 390-6514
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Texas Health Orthopedic Surgery Center Heritage
Surgery Center - Medicare-Certified · Fort Worth, Texas
Find Dr. Siwek'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.
Dr. Donald John Siwek is an anesthesiologist in Fort Worth, Texas
Dr. Siwek practices at Texas Health Orthopedic Surgery Center Heritage in Fort Worth, Texas.
Dr. Siwek's NPI, 1760439053, was assigned on May 30, 2006. Dr. Siwek graduated from Wayne State University School of Medicine in 1993. Dr. Siwek holds Michigan license 4301061922.
- NPI
- 1760439053NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840198156
- NPI enumeration date
- May 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (940) 390-6514
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Donald John Siwek practices at Texas Health Orthopedic Surgery Center Heritage in Fort Worth, Texas
Dr. Siwek's primary practice is Texas Health Orthopedic Surgery Center Heritage, at 9848 North Beach Street, Fort Worth, TX 76244. The practice phone is (940) 390-6514.
- Texas Health Orthopedic Surgery Center Heritage9848 North Beach Street, Fort Worth, TX 76244Phone(940) 390-6514
Source: Dmand AI Affiliation Data
Dr. Donald John Siwek is affiliated with 4 sites of care and 1 medical group
Dr. Siwek's primary practice is Texas Health Orthopedic Surgery Center Heritage in Fort Worth, Texas. Dr. Siwek is also affiliated with Methodist Southlake Medical Center. The medical group on file is Valiant Anesthesia Associates. Dmand AI also links Dr. Siwek to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Donald John Siwek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siwek practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Health Orthopedic Surgery Center Heritage | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Donald John Siwek is one of 4,073 anesthesiologists in Texas
Anesthesiology is Dr. Siwek's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Siwek is licensed in Michigan.
Specialties and state licenses
- Anesthesiology, MichiganPrimary
Anesthesiologists near Dr. Siwek
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. Donald John Siwek billed Medicare for 495 services in 2023
CMS data shows 495 Medicare services from Dr. Siwek across 14 procedure codes in 2023. Medicare paid $31,388 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Siwek's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Anesthesia
- 2022: 2542023: 2602%
- Surgery
- 2022: 2232023: 222No change
- Imaging
- 2022: 1882023: 1393%
Dr. Siwek compared with the Texas median for anesthesiologists, 2023
- Dr. Siwek
- Texas median
- Medicare services
- 495vs 717.0 times
- Part D claims
- 25vs 26Close to median
Medians across 3,710 anesthesiologists in Texas with Dmand AI profiles that report each measure.
Dr. Siwek's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Siwek and other anesthesiologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald John Siwek's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Siwek's median patient age at 58, with 57% women.
Dr. Siwek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women57%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Donald John Siwek wrote 71 Medicare Part D claims in 2024
In 2024, Dr. Siwek wrote 71 Medicare Part D claims. 85% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $20 in total drug cost. In 2023, CMS named 33 claims across 2 drugs.
Dr. Siwek's Part D claims by kind of drug, 2024
- Generic60 claims85%
- Brand-name11 claims15%
Dr. Siwek'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.
Drug classes CMS tracks in Dr. Siwek's Part D claims, 2024
- Antibiotics28%20 of 71 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 332024: 2524%
Drugs named by CMS: 2 in 2024, 2 in 2023.
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. Donald John Siwek takes part in Medicare
Dr. Siwek 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. Donald John Siwek has worked on 1 clinical trial
Dmand AI links Dr. Siwek to 1 clinical trial.
Investigators on the most trials with Dr. Siwek
- Stuart Alan Grant1 shared trial
- Jacob Lee Hutchins, MD1 shared trial
- Marian Libby Sherman, MD1 shared trial
Recent clinical trials with Dr. Siwek
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Donald John Siwek received $64,411 in industry payments from 2016 to 2024
CMS Open Payments shows 48 general payments to Dr. Siwek from 2 drug and device companies from 2016 to 2024. Honoraria make up the largest share, 86% of the total. Halyard Health, Inc. paid the most, $64,380.
General payments to Dr. Siwek by program year, 2016 to 2024
General payments to Dr. Siwek by kind, 2016 to 2024
- Honoraria$55,41186%
- Travel and lodging$4,1596%
- Consulting fees$3,7066%
- Food and beverage$1,1362%
Companies that paid Dr. Siwek the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Donald John Siwek graduated from Wayne State University School of Medicine
Dr. Siwek graduated from Wayne State University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Donald John Siwek'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Donald John Siwek
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. Donald John Siwek's NPI number?
Dr. Donald John Siwek's NPI number is 1760439053. It was assigned on May 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald John Siwek?
Dr. Donald John Siwek is an anesthesiologist in Fort Worth, Texas. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Donald John Siwek practice?
Dr. Siwek practices at 9848 North Beach Street, Fort Worth, TX 76244. Dr. Siwek's primary practice is Texas Health Orthopedic Surgery Center Heritage in Fort Worth, Texas. Dmand AI also links Dr. Siwek to 1 hospital and 1 group practice or clinic.
What is Dr. Donald John Siwek's office phone number?
The practice phone on file for Dr. Siwek is (940) 390-6514.
What is Dr. Donald John Siwek's medical license number?
Dr. Siwek holds Michigan license 4301061922.
Which hospitals is Dr. Donald John Siwek affiliated with?
Dr. Siwek is affiliated with Methodist Southlake Medical Center. Dmand AI links Dr. Siwek to 1 more hospital.
What medical group is Dr. Donald John Siwek part of?
Dr. Siwek is linked to Valiant Anesthesia Associates.
Does Dr. Donald John Siwek accept Medicare?
Yes. CMS data shows Dr. Siwek billed Medicare for 495 services in 2023, and Dr. Siwek accepts Medicare assignment.
What services does Dr. Donald John Siwek bill to Medicare?
In 2023, Dr. Siwek's most billed Medicare services were anesthesia (01810), anesthesia (01630) and surgery: brain, spine and nerves (64447).
Where did Dr. Donald John Siwek go to medical school?
Dr. Siwek graduated from Wayne State University School of Medicine in 1993.
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What drugs does Dr. Donald John Siwek prescribe most?
In 2024 Medicare Part D data, Dr. Siwek's most prescribed drugs by claims were Azithromycin and Methylprednisolone.
Has Dr. Donald John Siwek received payments from drug or device companies?
CMS Open Payments shows $64,411 in general payments to Dr. Siwek from 2 companies from 2016 to 2024. The largest total came from Halyard Health, Inc.
How long has Dr. Donald John Siwek been practicing?
Dr. Siwek graduated from medical school in 1993, 33 years ago.
Does Dr. Donald John Siwek do research?
Dr. Siwek has worked on 1 clinical trial.
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