Christopher M. Masi, MD
Internal Medicine Physician · Burr Ridge, IL
Christopher M. Masi, MD is an internal medicine physician with a practice address in Burr Ridge, Illinois, and NPI 1487716932, issued on Dec 14, 2006. Check the license (Illinois 036084342, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Christopher M. Masi
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036084342 IL
79185 GA
Self-reported in NPPES; status is on the state search - Practice location
- 180 Harvester Dr Ste 110, Burr Ridge, IL 60527
- Phone
- (773) 834-4064
- Enumerated
- Dec 14, 2006
- Record last updated
- Mar 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 036084342 IL
- Medicare enrollment
- Enrolled (PECOS I20171220000332); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 180 Harvester Dr Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher M. Masi 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 036084342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,524 Medicare Part D claims for 325 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. 25 claims were for opioids.
Most prescribed
- Atorvastatin Calcium214 claims
- Amlodipine Besylate190 claims
- Losartan Potassium138 claims
- Metformin Hcl93 claims
- Levothyroxine Sodium86 claims
- Lisinopril66 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): 92.3 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: $19.55
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. 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.
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
- The Emory Clinic IncAtlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher M. Masi among 7,238 internal medicine physician records in Illinois
Christopher M. Masi, 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
- Graduated1989 · median 2003 among the 3,580 with a school on file
- Record last updated2020 · 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).
28 internal medicine physician records list a practice address in Burr Ridge
They are 28 of the 610 NPPES records with a practice address in Burr Ridge, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Burr Ridge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammad Ali, MDWillowbrook, IL 605271508898362
- Christopher Camilleri, DOBurr Ridge, IL 605271295710044
- Anthony Delorenzo, D.O.Willowbrook, IL 605271851477236
- Homer Diadula, M.D.Burr Ridge, IL 605271134105232
- Daniel Grzegorek, D.O.Willowbrook, IL 605271487651337
- Farzana Iqbal, M.D.Burr Ridge, IL 605271851359939
- Anto Maliakkal, M.D. H.M.D.CBurr Ridge, IL 605271558376368
- Linda Palumbo, M.D.Chicago, IL 605271215994264
Common questions
What is Christopher M. Masi, MD's NPI number?
Christopher M. Masi, MD's National Provider Identifier (NPI) is 1487716932, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher M. Masi, MD located?
The NPPES record lists a practice address at 180 Harvester Dr Ste 110, Burr Ridge, IL, 60527. Phone: (773) 834-4064. Providers update this record themselves, so call before visiting.
How can I verify Christopher M. Masi, MD's license?
NPPES lists Illinois license number 036084342, 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 Christopher M. Masi, MD prescribe under Medicare Part D?
In 2024, Christopher M. Masi, MD had 2,524 Medicare Part D claims for 325 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christopher M. Masi, MD's MIPS final score?
The 2023 MIPS final score is 92.3 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.