NPPES file of Aug 9, 2026

Ruben Joseph Mylvaganam, M.D.

Pulmonary Disease Physician · Chicago, IL

Ruben Joseph Mylvaganam, M.D. is a pulmonary disease physician with a practice address in Chicago, Illinois, and NPI 1629462676, issued on Mar 26, 2015. Check the license (Illinois 036146223, 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
1629462676
Name
Ruben Joseph Mylvaganam
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
036146223 IL
Self-reported in NPPES; status is on the state search
Practice location
675 N Saint Clair St Ste 18-250, Chicago, IL 60611
Phone
(312) 695-1800
Enumerated
Mar 26, 2015
Record last updated
Apr 17, 2024
Fax
(312) 908-4650
Medicare enrollment
Enrolled (PECOS I20210611001458); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 2015
Telehealth
Offers telehealth (CMS)
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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Also registered at 675 N Saint Clair St Ste 18-250

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michael Alexander, M.D.Pulmonary Disease Physician1356768253
  2. Ambalavanan Arunachalam, M.DPulmonary Disease Physician1073868154
  3. Joseph Bailey, M.D.Pulmonary Disease Physician1639565427
  4. Jordyn ConroyPhysician Assistant1912535402
  5. Anthony Esposito, MDPulmonary Disease Physician1770900185
  6. Justin Fiala, MDPulmonary Disease Physician1760821474

Verify Ruben Joseph Mylvaganam 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 036146223
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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37% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

892 Medicare Part D claims for 88 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 67% of claims.

  1. Ruben Mylvaganam892
  2. Specialty average1,425

Most prescribed

  1. Sildenafil Citrate129 claims
  2. Adempas122 claims
  3. Opsumit113 claims
  4. Tyvaso Dpi106 claims
  5. Orenitram Er102 claims
  6. Ambrisentan48 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): 94.1 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 score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $3,815.64

24 payments; by number, the most common kind was food and beverage; the largest payer was Actelion Pharmaceuticals US, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ruben Mylvaganam$3,815.64
  2. Specialty average$5,159.88

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

  1. Central Dupage Physician GroupPalos Heights, IL
  2. Northwestern Medical Faculty FoundationChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ruben Joseph Mylvaganam among 617 pulmonary disease physician records in Illinois

Ruben Joseph Mylvaganam, M.D. is one of 617 pulmonary disease physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 77% of them.

  • NPI issued2015 · 77% of these records are older, 18% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2015 · median 2005 among the 444 with a school on file
  • Record last updated2024 · 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 207RP1001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in Illinois

There are 617 pulmonary disease physician records in Illinois.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Frank Becker, MDChicago, IL 606111770559312
  2. Gregory Budinger, MDChicago, IL 606111326008186
  3. Robert Cohen, M.D.Chicago, IL 606111831114248
  4. Thomas Corbridge, MDChicago, IL 606111952365629
  5. Jane Dematte Damico, MDChicago, IL 606111316901846
  6. Jeffrey Glassroth, MDChicago, IL 606111699703413
  7. Keenan Hawkins, M.D.Chicago, IL 606111952344848
  8. Manu Jain, MDChicago, IL 606111609806249

Common questions

What is Ruben Joseph Mylvaganam, M.D.'s NPI number?

Ruben Joseph Mylvaganam, M.D.'s National Provider Identifier (NPI) is 1629462676, issued on Mar 26, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Ruben Joseph Mylvaganam, M.D. located?

The NPPES record lists a practice address at 675 N Saint Clair St Ste 18-250, Chicago, IL, 60611. Phone: (312) 695-1800. Providers update this record themselves, so call before visiting.

How can I verify Ruben Joseph Mylvaganam, M.D.'s license?

NPPES lists Illinois license number 036146223, 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 Ruben Joseph Mylvaganam, M.D. prescribe under Medicare Part D?

In 2024, Ruben Joseph Mylvaganam, M.D. had 892 Medicare Part D claims for 88 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.

What is Ruben Joseph Mylvaganam, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.1 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.