Demetrios John Louis, M.D.
Pain Medicine (Anesthesiology) Physician · Arlington Heights, IL
Demetrios John Louis, M.D. is a pain medicine (anesthesiology) physician with a practice address in Arlington Heights, Illinois, and NPI 1477709442, issued on Aug 11, 2008. Check the license (Illinois 036122435, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Demetrios John Louis
- Credential
- M.D.
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License numbers
- 036122435 IL
125048597 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2101 S. Arlington Heights Road, Arlington Heights, IL 60005
- Phone
- (847) 593-6800
- Enumerated
- Aug 11, 2008
- Record last updated
- Apr 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (847) 593-6803
- Medicare enrollment
- Enrolled (PECOS I20111230000269); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 203 in Illinois → Look up another NPI →
Verify Demetrios John Louis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036122435Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
1,251 Medicare Part D claims for 198 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 452 claims were for opioids.
Most prescribed
- Gabapentin238 claims
- Hydrocodone-Acetaminophen160 claims
- Baclofen144 claims
- Pregabalin134 claims
- Oxycodone-Acetaminophen54 claims
- Tramadol Hcl53 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): 81 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).
Industry payments in 2024: $1,140.13
55 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 2,789 providers of this specialty with any payment received $3,225.41 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 one group practice
- Innovative Pain Specialists LLCArlington Heights, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Demetrios John Louis among 203 pain medicine (anesthesiology) physician records in Illinois
Demetrios John Louis, M.D. is one of 203 pain medicine (anesthesiology) physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2004 · median 2002 among the 144 with a school on file
- Record last updated2014 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in Illinois
There are 203 pain medicine (anesthesiology) physician records in Illinois.
All 203 in Illinois → Every provider in Arlington Heights → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Mohammad Ahsan, MDArlington Heights, IL 600051508889023
- Meghan Bhave, M.D.Arlington Heights, IL 600051851679591
- George Macrinici, M.D.Arlington Heights, IL 600051659534030
- Paul Marsiglia, D.O.Arlington Heights, IL 600051073769147
- Gary Magee, M.D.Barrington, IL 600101306845193
- Holly Carobene, M.D.Crystal Lake, IL 600141326140633
- Lawrence Lavine, M.D.Crystal Lake, IL 600141336119171
- Andrew Yu, M.D.Crystal Lake, IL 600141689889354
Common questions
What is Demetrios John Louis, M.D.'s NPI number?
Demetrios John Louis, M.D.'s National Provider Identifier (NPI) is 1477709442, issued on Aug 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Demetrios John Louis, M.D. located?
The NPPES record lists a practice address at 2101 S. Arlington Heights Road, Arlington Heights, IL, 60005. Phone: (847) 593-6800. Providers update this record themselves, so call before visiting.
How can I verify Demetrios John Louis, M.D.'s license?
NPPES lists Illinois license number 036122435, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Demetrios John Louis, M.D. prescribe under Medicare Part D?
In 2024, Demetrios John Louis, M.D. had 1,251 Medicare Part D claims for 198 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is Demetrios John Louis, M.D.'s MIPS final score?
The 2023 MIPS final score is 81 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.