Joseph B. Koscielniak, M.D.
Specialist · Merrillville, IN
Joseph B. Koscielniak, M.D. is a specialist with a practice address in Merrillville, Indiana, and NPI 1841299468, issued on Jul 15, 2005. Check the license (Indiana 01028974, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joseph B. Koscielniak
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 01028974 IN
Self-reported in NPPES; status is on the state search - Practice location
- 5587 Broadway, Merrillville, IN 46410
- Phone
- (219) 887-9506
- Enumerated
- Jul 15, 2005
- Record last updated
- Jan 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (219) 884-3761
- Medicaid ID
- 100353230A IN
- Medicare enrollment
- Enrolled (PECOS I20090709000112); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest specialist records → All 408 in Indiana → Look up another NPI →
Also registered at 5587 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dina Heijselaar-Kilian, PTPhysical Therapist1962416826
- Robert Martino, M.D.Specialist1861491383
Verify Joseph B. Koscielniak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 01028974Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average specialist in 2024
565 Medicare Part D claims for 127 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 111 claims were for opioids.
Most prescribed
- Meloxicam111 claims
- Celecoxib83 claims
- Hydrocodone-Acetaminophen71 claims
- Diclofenac Sodium45 claims
- Prednisone38 claims
- Allopurinol35 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
- Rci (wrs) LLCHebron, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph B. Koscielniak among 408 specialist records in Indiana
Joseph B. Koscielniak, M.D. is one of 408 specialist records with a practice address in Indiana. 24% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 24% of these records are
- In the CMS Doctors and Clinicians fileYes · 15% of these records are
- Graduated1979 · median 1990 among the 62 with a school on file
- Record last updated2012 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 specialist records list a practice address in Merrillville
They are 15 of the 1,972 NPPES records with a practice address in Merrillville, and 408 specialist records in Indiana.
All 408 in Indiana → Every provider in Merrillville → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Scott Andrews, M.D.Merrillville, IN 464101962401505
- Thomas Bennett, M.D.Merrillville, IN 464101427051911
- Andrea Carlson, DVMMerrillville, IN 464101508320318
- Sailaja Damineni, OTRMerrillville, IN 464101134331606
- J Kansal, M.D., P.C.Merrillville, IN 464101033289129
- Demetrios Katsaros, M.D.Merrillville, IN 464101770610180
- Richard Lipman, M.D.Merrillville, IN 464101730182361
- Robert Martino, M.D.Merrillville, IN 464101861491383
Common questions
What is Joseph B. Koscielniak, M.D.'s NPI number?
Joseph B. Koscielniak, M.D.'s National Provider Identifier (NPI) is 1841299468, issued on Jul 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joseph B. Koscielniak, M.D. located?
The NPPES record lists a practice address at 5587 Broadway, Merrillville, IN, 46410. Phone: (219) 887-9506. Providers update this record themselves, so call before visiting.
How can I verify Joseph B. Koscielniak, M.D.'s license?
NPPES lists Indiana license number 01028974, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Joseph B. Koscielniak, M.D. prescribe under Medicare Part D?
In 2024, Joseph B. Koscielniak, M.D. had 565 Medicare Part D claims for 127 beneficiaries; the average among specialist prescribers was 1,380. 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.