Regina M. Iwinski, M.D.
Emergency Medicine Physician · La Porte, IN
Regina M. Iwinski, M.D. is an emergency medicine physician with a practice address in La Porte, Indiana, and NPI 1750306163, issued on Jul 13, 2006. Check the license (Indiana 01046998A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Regina M. Iwinski
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 01046998A IN
E0395 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1007 Lincolnway, La Porte, IN 46352
- Phone
- (219) 326-1234
- Enumerated
- Jul 13, 2006
- Record last updated
- Apr 3, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid IDs
- 200163490 IN
200163490A IN - Medicare enrollment
- Enrolled (PECOS I20100730000777); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1993
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,293 in Indiana → Look up another NPI →
Also registered at 1007 Lincolnway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Houston, M.D.Emergency Medicine Physician1982692166
- Judy Kwiatkowski, RDRegistered Dietitian1043295553
- Lisa Ostrowski, MDAnatomic Pathology Physician1205879913
- Natalie Painter, D.O.Emergency Medicine Physician1346265691
- Norma Wehrman, RDRegistered Dietitian1689658296
Verify Regina M. Iwinski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01046998ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average emergency medicine physician in 2024
277 Medicare Part D claims for 213 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Cephalexin43 claims
- Azithromycin32 claims
- Amoxicillin-Clavulanate Potass27 claims
- Prednisone23 claims
- Albuterol Sulfate Hfa15 claims
- Doxycycline Hyclate15 claims
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.
Bills Medicare through one group practice
- Community Care Network IncCrown Point, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Regina M. Iwinski among 1,293 emergency medicine physician records in Indiana
Regina M. Iwinski, M.D. is one of 1,293 emergency medicine physician records with a practice address in Indiana. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2012 among the 814 with a school on file
- Record last updated2009 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 emergency medicine physician records list a practice address in La Porte
They are 8 of the 445 NPPES records with a practice address in La Porte, and 1,293 emergency medicine physician records in Indiana.
All 1,293 in Indiana → Every provider in La Porte → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- William Houston, M.D.La Porte, IN 463521982692166
- Natalie Painter, D.O.La Porte, IN 463521346265691
- Jeffrey Anderson, M.D., FAEPLa Porte, IN 463501902822836
- April Bisaga, D.O.La Porte, IN 463501164555884
- Michael Hawthorne, MDLa Porte, IN 463501750494381
- Joseph Newberg, MDLa Porte, IN 463501013133396
- Najeem Ojulari, MDLa Porte, IN 463501487049466
- Larisa Allakhverdova, MDMichigan City, IN 463601144219023
Common questions
What is Regina M. Iwinski, M.D.'s NPI number?
Regina M. Iwinski, M.D.'s National Provider Identifier (NPI) is 1750306163, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Regina M. Iwinski, M.D. located?
The NPPES record lists a practice address at 1007 Lincolnway, La Porte, IN, 46352. Phone: (219) 326-1234. Providers update this record themselves, so call before visiting.
How can I verify Regina M. Iwinski, M.D.'s license?
NPPES lists Indiana license number 01046998A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Regina M. Iwinski, M.D. prescribe under Medicare Part D?
In 2024, Regina M. Iwinski, M.D. had 277 Medicare Part D claims for 213 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.