NPPES file of Aug 9, 2026

Demetrios Petrovas, MD

Internal Medicine Physician · Chicago, IL

Demetrios Petrovas, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1871547505, issued on May 19, 2006. Check the license (Illinois 36084958, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871547505
Name
Demetrios Petrovas
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
36084958 IL
A50087 CA
Self-reported in NPPES; status is on the state search
Practice location
3960 N. Harlem Ave., Chicago, IL 60634
Phone
(773) 658-2300
Enumerated
May 19, 2006
Record last updated
Jan 20, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(773) 658-2305
Medicaid ID
36084958 IL
Medicare enrollment
Enrolled (PECOS I20090107000055); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Demetrios Petrovas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 36084958
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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3.8 times the Medicare Part D claims of the average internal medicine physician in 2024

12,189 Medicare Part D claims for 543 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 440 claims were for opioids.

  1. Demetrios Petrovas12,189
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium812 claims
  2. Losartan Potassium447 claims
  3. Pantoprazole Sodium443 claims
  4. Levothyroxine Sodium409 claims
  5. Amlodipine Besylate405 claims
  6. Metformin Hcl400 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): 91.5 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.

  1. Qualityout of 100 · 30% of the final score99.0
  2. Costout of 100 · 30%55.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $277.50

12 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Demetrios Petrovas$277.50
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Demetrios Petrovas among 7,238 internal medicine physician records in Illinois

Demetrios Petrovas, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1988 · median 2003 among the 3,580 with a school on file
  • Record last updated2015 · 47% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Leszek Ballarin, M.D.Chicago, IL 606341720088107
  2. Mao Chen, M.D.Chicago, IL 606341295794345
  3. Godwin D'Souza, M.D.Chicago, IL 606341619915295
  4. Rebecca Duke, M.D.Chicago, IL 606341538272604
  5. John Haebich, M.D.Chicago, IL 606341881647048
  6. Haralambos Hatzidimitriadis, MDChicago, IL 606341780766170
  7. Jerry Jakimiec, MDChicago, IL 606341184786196
  8. George Karabelas, MDChicago, IL 606341437224128

Common questions

What is Demetrios Petrovas, MD's NPI number?

Demetrios Petrovas, MD's National Provider Identifier (NPI) is 1871547505, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Demetrios Petrovas, MD located?

The NPPES record lists a practice address at 3960 N. Harlem Ave., Chicago, IL, 60634. Phone: (773) 658-2300. Providers update this record themselves, so call before visiting.

How can I verify Demetrios Petrovas, MD's license?

NPPES lists Illinois license number 36084958, 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 Petrovas, MD prescribe under Medicare Part D?

In 2024, Demetrios Petrovas, MD had 12,189 Medicare Part D claims for 543 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Demetrios Petrovas, MD's MIPS final score?

The 2023 MIPS final score is 91.5 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.