Sinan Ali Simsir, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Dubuque, IA
Sinan Ali Simsir, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Dubuque, Iowa, and NPI 1528142445, issued on Oct 25, 2006. Check the license (Iowa MD-51799, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Sinan Ali Simsir
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- MD-51799 IA
036-130418 IL
108789TEMP MN
2003-00884 NC
25MA08757800 NJ
and 1 more
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Langworthy St, Dubuque, IA 52001
- Phone
- (563) 584-3445
- Enumerated
- Oct 25, 2006
- Record last updated
- Jul 31, 2023
- Fax
- (563) 584-3446
- Medicare enrollment
- Enrolled (PECOS I20250402002098); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 53 in Iowa → Look up another NPI →
Also registered at 1000 Langworthy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Louis Alt, M.D.Otolaryngology Physician1902855778
- Courtney Ambrosy, PA-CPhysician Assistant1457121345
- Sarah ArnoldMedical Physician Assistant1558016113
- Paula Aston, MDNeurology Physician1144286675
- Kala Ave-Lallemant, FNPFamily Nurse Practitioner1235551656
- Martin Bagby, DOFamily Medicine Physician1942269402
Verify Sinan Ali Simsir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-51799Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
39 Medicare Part D claims, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $67.06
1 payment: food and beverage; the largest payer was Abiomed. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Porter Physician Services LLCChesterton, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sinan Ali Simsir among 53 thoracic surgery (cardiothoracic vascular surgery) physician records in Iowa
Sinan Ali Simsir, MD is one of 53 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Iowa. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 21% of them.
- NPI issued2006 · 21% of these records are older, 49% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1991 · median 2000 among the 30 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Iowa
There are 53 thoracic surgery (cardiothoracic vascular surgery) physician records in Iowa.
All 53 in Iowa → Every provider in Dubuque → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Lance Bezzina, D.O.Dubuque, IA 520011275752511
- Warren Gall, M.D.Dubuque, IA 520011265482277
- Christopher Peters, M.D.Coralville, IA 522411760461032
- Evgeny Arshava, M.D.Iowa City, IA 522421326257585
- Mohammad Bashir, M.B., B.S.Iowa City, IA 522421790994960
- Douglas Behrendt, MDIowa City, IA 522421134112253
- David Helman, M.D.Iowa City, IA 522421609836519
- Mohsen Karimi, MDIowa City, IA 522421366400129
Common questions
What is Sinan Ali Simsir, MD's NPI number?
Sinan Ali Simsir, MD's National Provider Identifier (NPI) is 1528142445, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sinan Ali Simsir, MD located?
The NPPES record lists a practice address at 1000 Langworthy St, Dubuque, IA, 52001. Phone: (563) 584-3445. Providers update this record themselves, so call before visiting.
How can I verify Sinan Ali Simsir, MD's license?
NPPES lists Iowa license number MD-51799, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sinan Ali Simsir, MD prescribe under Medicare Part D?
In 2024, Sinan Ali Simsir, MD had 39 Medicare Part D claims; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.