NPPES file of Aug 9, 2026

Yolanda R. Y. Co, M.D.

Internal Medicine Physician · Elmhurst, IL

Yolanda R. Y. Co, M.D. is an internal medicine physician with a practice address in Elmhurst, Illinois, and NPI 1811985054, issued on Oct 12, 2005. Check the license (Illinois 036077793, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811985054
Name
Yolanda R. Y. Co
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036077793 IL
Self-reported in NPPES; status is on the state search
Practice location
133 E Brush Hill RD Ste 205, Elmhurst, IL 60126
Phone
(331) 221-6930
Enumerated
Oct 12, 2005
Record last updated
Feb 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(331) 221-3869
Medicaid ID
036077793 IL
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →

Also registered at 133 E Brush Hill RD Ste 205

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

  1. Tiana Carrillo Calderon, M.D.Family Medicine Physician1619388923
  2. Syeda Nida, MDRheumatology Physician1629690763

Verify Yolanda R. Y. Co 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 036077793    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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Yolanda R. Y. Co among 7,238 internal medicine physician records in Illinois

Yolanda R. Y. Co, M.D. 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 not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileNo · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2021 · 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).

50 internal medicine physician records list a practice address in Elmhurst

They are 50 of the 1,540 NPPES records with a practice address in Elmhurst, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 7,238 in Illinois → Every provider in Elmhurst → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Maggie Chacko, MDElmhurst, IL 601261417993734
  2. John Damergis, MDElmhurst, IL 601261750332896
  3. Richard Finegold, MD.Elmhurst, IL 601261770564122
  4. Michael Hugar, MDElmhurst, IL 601261558343913
  5. Joseph Kaliski, MDElmhurst, IL 601261235180381
  6. Michael Nosek, MDElmhurst, IL 601261598716656
  7. Patrick O'Meara, M.D.Elmhurst, IL 601261437127891
  8. Maelen Pantano, MDElmhurst, IL 601261023068152

Common questions

What is Yolanda R. Y. Co, M.D.'s NPI number?

Yolanda R. Y. Co, M.D.'s National Provider Identifier (NPI) is 1811985054, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Yolanda R. Y. Co, M.D. located?

The NPPES record lists a practice address at 133 E Brush Hill RD Ste 205, Elmhurst, IL, 60126. Phone: (331) 221-6930. Providers update this record themselves, so call before visiting.

How can I verify Yolanda R. Y. Co, M.D.'s license?

NPPES lists Illinois license number 036077793, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.