Stephen Karol, M.D.
Physical Medicine & Rehabilitation Physician · Merrillville, IN
Stephen Karol, M.D. is a physical medicine & rehabilitation physician with a practice address in Merrillville, Indiana, and NPI 1487709986, issued on Jan 24, 2007. Check the license (Indiana 01050812, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Stephen Karol
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- 01050812 IN
Self-reported in NPPES; status is on the state search - Practice location
- 521 E 86TH Ave, Merrillville, IN 46410
- Phone
- (219) 769-0777
- Enumerated
- Jan 24, 2007
- Record last updated
- Oct 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (219) 755-0612
- Medicare enrollment
- Enrolled (PECOS I20101215001119); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 226 in Indiana → Look up another NPI →
Also registered at 521 E 86TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victoria Arevalo, MAMental Health Counselor1134955164
- Elise Ballard, NPFamily Nurse Practitioner1275385361
- Richard Cristea, M.D.Neurology Physician1992858641
- Chirag Patel, M.D.Internal Medicine Physician1205981750
- Vanessa Qualls, LMHCMental Health Counselor1003313743
- Larry Salberg, M.D.Neurology with Special Qualifications in Child Neurology Physician1073666749
Verify Stephen Karol in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01050812Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average physical medicine & rehabilitation physician in 2024
1,620 Medicare Part D claims for 337 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. 248 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen88 claims
- Atorvastatin Calcium87 claims
- Oxycodone-Acetaminophen69 claims
- Lisinopril66 claims
- Gabapentin58 claims
- Furosemide52 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 practice group's MIPS final score for 2023 (Medicare payment program): 70 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $44.77
2 payments; by number, the most common kind was food and beverage; the largest payer was Merz Pharmaceuticals, LLC. The 3,895 providers of this specialty with any payment received $1,237.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Chesterton Physical Therapy IncChesterton, IN
- Rci (wrs) LLCValparaiso, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Karol among 226 physical medicine & rehabilitation physician records in Indiana
Stephen Karol, M.D. is one of 226 physical medicine & rehabilitation physician records with a practice address in Indiana. 62% 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 35% of them.
- NPI issued2007 · 35% of these records are older, 58% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1996 · median 2008 among the 122 with a school on file
- Record last updated2012 · 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 208100000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Indiana
There are 226 physical medicine & rehabilitation physician records in Indiana.
All 226 in Indiana → Every provider in Merrillville → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Mitchell Mazurek, MDValparaiso, IN 463831043259328
- Lynette AultSchererville, IN 463751801630876
- Anniver Essel De LeonSchererville, IN 463751083023741
- John Midmore, MDPortage, IN 463681245201177
- Albert Derubertis, D.O.Michigan City, IN 463601093762999
- Olusola Olowe, MDMichigan City, IN 463601770783748
- Jennifer CoffeenLa Porte, IN 463501437711785
- Machelle HamiltonHobart, IN 463421861064438
Common questions
What is Stephen Karol, M.D.'s NPI number?
Stephen Karol, M.D.'s National Provider Identifier (NPI) is 1487709986, issued on Jan 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Karol, M.D. located?
The NPPES record lists a practice address at 521 E 86TH Ave, Merrillville, IN, 46410. Phone: (219) 769-0777. Providers update this record themselves, so call before visiting.
How can I verify Stephen Karol, M.D.'s license?
NPPES lists Indiana license number 01050812, 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 Stephen Karol, M.D. prescribe under Medicare Part D?
In 2024, Stephen Karol, M.D. had 1,620 Medicare Part D claims for 337 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is Stephen Karol, M.D.'s MIPS final score?
The 2023 MIPS final score is 70 of 100, reported for the practice group. 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.