Demetrios Katsaros, M.D.
Specialist · Merrillville, IN
Demetrios Katsaros, M.D. is a specialist with a practice address in Merrillville, Indiana, and NPI 1770610180, issued on Feb 27, 2007. Check the license (Indiana 01049411, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Demetrios Katsaros
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 01049411 IN
Self-reported in NPPES; status is on the state search - Practice location
- 7863 Broadway, Merrillville, IN 46410
- Phone
- (219) 736-2047
- Enumerated
- Feb 27, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (219) 736-2048
- Medicaid ID
- 200195840B IN
- Medicare enrollment
- Enrolled (PECOS I20110125000692); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Medicine And Surgery, 1990
- Entity
- Type 1 · individual
8 nearest specialist records → All 408 in Indiana → Look up another NPI →
Also registered at 7863 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fadi Alzeidan, MDFamily Medicine Physician1245224724
- Margaret Hicks, PSYDPsychoanalysis Psychologist1558005025
- Thalia KatsarosPediatric Dentistry1023156841
- Eric Schulte, MDCardiovascular Disease Physician1194724377
Verify Demetrios Katsaros in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 01049411Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average specialist in 2024
1,534 Medicare Part D claims for 67 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 223 claims were for opioids.
Most prescribed
- Alprazolam119 claims
- Hydrocodone-Acetaminophen88 claims
- Oxycodone-Acetaminophen81 claims
- Amoxicillin-Clavulanate Potass53 claims
- Botox49 claims
- Simvastatin49 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.
Demetrios Katsaros among 408 specialist records in Indiana
Demetrios Katsaros, 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 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 35% newer
- In a Medicare fileYes · 24% of these records are
- In the CMS Doctors and Clinicians fileYes · 15% of these records are
- Graduated1990 · median 1990 among the 62 with a school on file
- Record last updated2007 · 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
- Joseph Koscielniak, M.D.Merrillville, IN 464101841299468
- Richard Lipman, M.D.Merrillville, IN 464101730182361
- Robert Martino, M.D.Merrillville, IN 464101861491383
Common questions
What is Demetrios Katsaros, M.D.'s NPI number?
Demetrios Katsaros, M.D.'s National Provider Identifier (NPI) is 1770610180, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Demetrios Katsaros, M.D. located?
The NPPES record lists a practice address at 7863 Broadway, Merrillville, IN, 46410. Phone: (219) 736-2047. Providers update this record themselves, so call before visiting.
How can I verify Demetrios Katsaros, M.D.'s license?
NPPES lists Indiana license number 01049411, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Demetrios Katsaros, M.D. prescribe under Medicare Part D?
In 2024, Demetrios Katsaros, M.D. had 1,534 Medicare Part D claims for 67 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.