Vasc Endovascular Surg
Catheter AblationChi-Square DistributionLaser Therapy
Dr. Alexander Spencer Tretinyak, MD
NPI1073566030PAC ID6305821232
- Medicare services, 2024
- 488
- Medicare patients, 2024
- 272
- Part D claims, 2024
- 525
- Publications
- 5
- Hospital affiliations
- 5
- Practice address
- 2000 E Milestone Dr, Appleton, WI 54913
- Practice phone
- Call (920) 731-8131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fox Valley Surgical Associates Ltd
Appleton, Wisconsin
Find Dr. Tretinyak'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. Alexander Spencer Tretinyak is a vascular surgeon in Appleton, Wisconsin
Dr. Tretinyak practices at Fox Valley Surgical Associates Ltd in Appleton, Wisconsin.
Dr. Tretinyak's NPI, 1073566030, was assigned on May 18, 2006. Dr. Tretinyak graduated from University of Minnesota Medical School in 1996. Dr. Tretinyak holds Wisconsin license 60546-20.
NPI and contact details
- NPI
- 1073566030NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305821232
- NPI enumeration date
- May 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 731-8131
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Spencer Tretinyak practices at Fox Valley Surgical Associates Ltd in Appleton, Wisconsin
Dr. Tretinyak's primary practice is Fox Valley Surgical Associates Ltd, at 2000 E Milestone Dr, Appleton, WI 54913 in Outagamie County. The practice phone is (920) 731-8131.
- Fox Valley Surgical Associates Ltd2000 E Milestone Dr, Appleton, WI 54913 · Outagamie CountyPhone(920) 731-8131
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alexander Spencer Tretinyak is affiliated with 6 sites of care and 1 medical group
Dr. Tretinyak's primary practice is Fox Valley Surgical Associates Ltd in Appleton, Wisconsin. Dr. Tretinyak is also affiliated with ThedaCare Regional Medical Center-Appleton. The medical group on file is Fox Valley Surgical Specialists. Dmand AI also links Dr. Tretinyak to 4 more hospitals, each named with a free account.
Fox Valley Surgical Associates LtdPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexander Spencer Tretinyak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tretinyak practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fox Valley Surgical Associates Ltd | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander Spencer Tretinyak is one of 74 vascular surgeons in Wisconsin
Vascular surgery is Dr. Tretinyak's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Tretinyak is licensed in Wisconsin.
Specialties and state licenses
- Vascular surgery, WisconsinPrimary
Vascular surgeons near Dr. Tretinyak
Counts of vascular surgeons with a Dmand AI profile, by place and practice. Each opens the list.
74vascular surgeons in Wisconsin
4vascular surgeons in Appleton
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Alexander Spencer Tretinyak billed Medicare for 488 services in 2024
CMS data shows 488 Medicare services from Dr. Tretinyak across 12 procedure codes in 2024, for 272 Medicare patients. Medicare paid $35,410 for them.
Medicare services, 2024488
Medicare patients272
Paid by Medicare$35,410
Procedure codes12
Dr. Tretinyak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1482024: 19028%
- Tests and treatments
- 2023: 802024: 165106%
- Imaging
- 2023: 1152024: 10211%
- Surgery
- 2023: 152024: 31107%
Where Dr. Tretinyak's Medicare services took place, 2024
- In an office22145%
- In a facility26755%
Dr. Tretinyak compared with the Wisconsin median for vascular surgeons, 2024
- Dr. Tretinyak
- Wisconsin median
- Medicare services
- 488vs 25889% above
- Medicare patients
- 272vs 21228% above
- Part D claims
- 483vs 608.1 times
Medians across 71 vascular surgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Tretinyak's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander Spencer Tretinyak treated 272 Medicare patients in 2024, average age 73
CMS counts 272 Medicare patients who saw Dr. Tretinyak in 2024. The largest group is 65 to 74, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 3.12, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Tretinyak's median patient age at 70, with 46% women.
Medicare patients, 2024272
Average age73
Average risk score3.12
Also on Medicaid18%
Dr. Tretinyak's Medicare patients by age, 2024
Dr. Tretinyak's Medicare patients by sex, 2024
- Women12747%
- Men14553%
Chronic conditions among Dr. Tretinyak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease52%
- Ischemic heart disease52%
- Diabetes51%
- Arthritis44%
- Heart failure37%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tretinyak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexander Spencer Tretinyak wrote 525 Medicare Part D claims in 2024
In 2024, Dr. Tretinyak wrote 525 Medicare Part D claims for 177 patients. 95% of them were for generic drugs. CMS names the drug for 483 of them, across 6 drugs with 11 or more claims each, at $14,115 in total drug cost. In 2023, CMS named 444 claims across 6 drugs.
Part D claims, 2024525
Drugs named by CMS6
Total drug cost$14,115
Part D patients177
Dr. Tretinyak's Part D claims by kind of drug, 2024
- Generic498 claims95%
- Brand-name27 claims5%
Dr. Tretinyak'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. Tretinyak's Part D claims, 2024
- Opioids14%74 of 525 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: 4442024: 4839%
Drugs named by CMS: 6 in 2024, 6 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
Dr. Alexander Spencer Tretinyak ranks in the 79th percentile for leg revascularization (restoring blood flow) in Medicare
Dr. Tretinyak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of leg revascularization (restoring blood flow) by Dr. Tretinyak, more than 79% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Tretinyak ranks in Medicare procedure volume
- Varicose vein removal
- 72nd percentile45 procedures
- Leg revascularization (restoring blood flow)
- 79th percentile19 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Alexander Spencer Tretinyak has 5 publications on record
Dmand AI links 5 papers to Dr. Tretinyak, published from 2012 to 2014. 2013 was the busiest year, with 2. The most frequent topics are Chi-Square Distribution and Ultrasonography, Doppler, Duplex. Dr. Tretinyak's most frequent co-authors are Peter Brown Alden, MD, Jason Q. Alexander, MD and Timothy D. Henry, MD.
Papers5
Years published2012 to 2014
Dr. Tretinyak's papers by year, 2012 to 2014
Topics Dr. Tretinyak writes about most
- Chi-Square Distribution
- Ultrasonography, Doppler, Duplex
Dr. Tretinyak's most frequent co-authors
- Peter Brown Alden, MD2 shared papers
- Jason Q. Alexander, MD2 shared papers
- Timothy D. Henry, MD2 shared papers
Recent publications by Dr. Tretinyak
Ablation TechniquesChi-Square DistributionCompression Bandages
Circulation
Cardiovascular DiseasesEmergency Medical ServicesEmergency Treatment
See who Dr. Tretinyak researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tretinyak works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alexander Spencer Tretinyak received $6,674 in industry payments from 2016 to 2025
CMS Open Payments shows 102 general payments to Dr. Tretinyak from 24 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 50% of the total. Boston Scientific Corporation paid the most, $2,059.
General payments to Dr. Tretinyak by program year, 2016 to 2025
General payments to Dr. Tretinyak by kind, 2016 to 2025
$6.7Kin total
- Travel and lodging$3,34850%
- Food and beverage$3,15247%
- Education$1743%
Companies that paid Dr. Tretinyak the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexander Spencer Tretinyak graduated from University of Minnesota Medical School
Dr. Tretinyak graduated from University of Minnesota Medical School in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexander Spencer Tretinyak'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (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. Alexander Spencer Tretinyak
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. Alexander Spencer Tretinyak's NPI number?
Dr. Alexander Spencer Tretinyak's NPI number is 1073566030. It was assigned on May 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Spencer Tretinyak?
Dr. Alexander Spencer Tretinyak is a vascular surgeon in Appleton, Wisconsin. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Alexander Spencer Tretinyak practice?
Dr. Tretinyak practices at 2000 E Milestone Dr, Appleton, WI 54913. Dr. Tretinyak's primary practice is Fox Valley Surgical Associates Ltd in Appleton, Wisconsin. Dmand AI also links Dr. Tretinyak to 4 hospitals.
What is Dr. Alexander Spencer Tretinyak's office phone number?
The practice phone on file for Dr. Tretinyak is (920) 731-8131.
What is Dr. Alexander Spencer Tretinyak's medical license number?
Dr. Tretinyak holds Wisconsin license 60546-20.
Which hospitals is Dr. Alexander Spencer Tretinyak affiliated with?
Dr. Tretinyak is affiliated with ThedaCare Regional Medical Center-Appleton. Dmand AI links Dr. Tretinyak to 4 more hospitals.
What medical group is Dr. Alexander Spencer Tretinyak part of?
Dr. Tretinyak is linked to Fox Valley Surgical Specialists.
Does Dr. Alexander Spencer Tretinyak accept Medicare?
Yes. CMS data shows Dr. Tretinyak billed Medicare for 488 services in 2024, and Dr. Tretinyak accepts Medicare assignment.
How many Medicare patients does Dr. Alexander Spencer Tretinyak see?
CMS counts 272 Medicare patients who saw Dr. Tretinyak in 2024, with an average age of 73.
What services does Dr. Alexander Spencer Tretinyak bill to Medicare?
In 2024, Dr. Tretinyak's most billed Medicare services were office visit, established patient (99214), special service (99152) and blood vessel study (93922).
Show 6 more questionsShow fewer questions
Where did Dr. Alexander Spencer Tretinyak go to medical school?
Dr. Tretinyak graduated from University of Minnesota Medical School in 1996.
What drugs does Dr. Alexander Spencer Tretinyak prescribe most?
In 2024 Medicare Part D data, Dr. Tretinyak's most prescribed drugs by claims were Clopidogrel, Cilostazol and Hydrocodone-Acetaminophen.
Has Dr. Alexander Spencer Tretinyak received payments from drug or device companies?
CMS Open Payments shows $6,674 in general payments to Dr. Tretinyak from 24 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Alexander Spencer Tretinyak been practicing?
Dr. Tretinyak graduated from medical school in 1996, 30 years ago.
Does Dr. Alexander Spencer Tretinyak do research?
Dmand AI links 5 publications to Dr. Tretinyak, published from 2012 to 2014.
Who does Dr. Alexander Spencer Tretinyak publish with?
Dr. Tretinyak's most frequent co-authors are Peter Brown Alden, MD (2 shared papers), Jason Q. Alexander, MD (2 shared papers) and Timothy D. Henry, MD (2 shared papers).
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