Robert Kostoroski, D.O.
Internal Medicine Physician · Miami, FL
Robert Kostoroski, D.O. is an internal medicine physician with a practice address in Miami, Florida, and NPI 1902158934, issued on Oct 15, 2012. Check the license (Florida OS11923, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Robert Kostoroski
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS11923 FL
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Alton RD, Miami, FL 33140
- Phone
- (872) 231-3162
- Enumerated
- Oct 15, 2012
- Record last updated
- Jan 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20130225000290); accepts Medicare assignment
- Medical or professional school
- Nova Southeastern Univ College Of Dental Medicine, 2010
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →
Also registered at 4300 Alton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Kostoroski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS11923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,927 Medicare Part D claims for 395 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Atorvastatin Calcium141 claims
- Eliquis121 claims
- Amlodipine Besylate99 claims
- Mirtazapine87 claims
- Metoprolol Tartrate78 claims
- Furosemide73 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.
The MIPS final score for 2023 (Medicare payment program): 39.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- First Docs PCTampa, FL
- Kostoroski HealthcareCutler Bay, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Kostoroski among 10,151 internal medicine physician records in Florida
Robert Kostoroski, D.O. is one of 10,151 internal medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 63% of them.
- NPI issued2012 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2010 · median 2004 among the 6,606 with a school on file
- Record last updated2026 · 48% 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 Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
762 internal medicine physician records list a practice address in Miami
They are 762 of the 49,442 NPPES records with a practice address in Miami, and 10,151 internal medicine physician records in Florida.
All 10,151 in Florida → Every provider in Miami → Internal Medicine Physician nationwide →
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Common questions
What is Robert Kostoroski, D.O.'s NPI number?
Robert Kostoroski, D.O.'s National Provider Identifier (NPI) is 1902158934, issued on Oct 15, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Robert Kostoroski, D.O. located?
The NPPES record lists a practice address at 4300 Alton RD, Miami, FL, 33140. Phone: (872) 231-3162. Providers update this record themselves, so call before visiting.
How can I verify Robert Kostoroski, D.O.'s license?
NPPES lists Florida license number OS11923, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Kostoroski, D.O. prescribe under Medicare Part D?
In 2024, Robert Kostoroski, D.O. had 2,927 Medicare Part D claims for 395 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Robert Kostoroski, D.O.'s MIPS final score?
The 2023 MIPS final score is 39.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.