NPPES file of Aug 9, 2026

Patricia C. Osmolak, M.D.

Internal Medicine Physician · South Bend, IN

Patricia C. Osmolak, M.D. is an internal medicine physician with a practice address in South Bend, Indiana, and NPI 1194102723, issued on May 4, 2015. Check the license (Indiana 01084230A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194102723
Name
Patricia C. Osmolak
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
01084230A IN
Self-reported in NPPES; status is on the state search
Practice location
615 N Michigan St FL 1, South Bend, IN 46601
Phone
(574) 647-3050
Enumerated
May 4, 2015
Record last updated
Apr 28, 2023
Fax
(574) 647-1094
Medicaid ID
300040441 IN
Medicare enrollment
Enrolled (PECOS I20200817000984); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 615 N Michigan St FL 1

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Haidong Bao, M.D.Internal Medicine Physician1578723573
  2. Sue Bickley, NPNeonatal Nurse Practitioner1801188743
  3. Kirk Bodach, MDHospitalist Physician1306044003
  4. Rebecca Byers, NPNeonatal Nurse Practitioner1275847790
  5. David Chi, MDInternal Medicine Physician1932662780
  6. Katrina GreggFamily Nurse Practitioner1528462900

Verify Patricia C. Osmolak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01084230A
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Indiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average internal medicine physician in 2024

82 Medicare Part D claims for 27 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Patricia Osmolak82
  2. Specialty average3,176

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

  1. Beacon Medical Group IncSouth Bend, IN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Patricia C. Osmolak among 2,109 internal medicine physician records in Indiana

Patricia C. Osmolak, M.D. is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 72% of them.

  • NPI issued2015 · 72% of these records are older, 25% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2015 · median 2005 among the 1,448 with a school on file
  • Record last updated2023 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 internal medicine physician records list a practice address in South Bend

They are 54 of the 3,178 NPPES records with a practice address in South Bend, and 2,109 internal medicine physician records in Indiana.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sylvana Atallah, M.D.South Bend, IN 466011225235336
  2. Justin Chow, MDSouth Bend, IN 466011700899622
  3. Robert Einterz, MDSouth Bend, IN 466011992762652
  4. Celestina Iheanacho, MDSouth Bend, IN 466011619927530
  5. Mathew Kallookulangara, M.D.South Bend, IN 466011912998642
  6. Carolyn Klaus, M.D.South Bend, IN 466011811988561
  7. Wen Sun Lum, MDSouth Bend, IN 466011497781124
  8. Monika Niemiec, MDSouth Bend, IN 466011063610327

Common questions

What is Patricia C. Osmolak, M.D.'s NPI number?

Patricia C. Osmolak, M.D.'s National Provider Identifier (NPI) is 1194102723, issued on May 4, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Patricia C. Osmolak, M.D. located?

The NPPES record lists a practice address at 615 N Michigan St FL 1, South Bend, IN, 46601. Phone: (574) 647-3050. Providers update this record themselves, so call before visiting.

How can I verify Patricia C. Osmolak, M.D.'s license?

NPPES lists Indiana license number 01084230A, 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 Patricia C. Osmolak, M.D. prescribe under Medicare Part D?

In 2024, Patricia C. Osmolak, M.D. had 82 Medicare Part D claims for 27 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.