NPPES file of Aug 9, 2026

Chung-Kay Koh, MD

Endocrinology, Diabetes & Metabolism Physician · Park Ridge, IL

Chung-Kay Koh, MD is an endocrinology, diabetes & metabolism physician with a practice address in Park Ridge, Illinois, and NPI 1841216843, issued on Jul 14, 2006. Check the license (Illinois 036-109946, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841216843
Name
Chung-Kay Koh
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
036-109946 IL
Self-reported in NPPES; status is on the state search
Practice location
1775 Ballard RD, Park Ridge, IL 60068
Phone
(847) 318-2400
Enumerated
Jul 14, 2006
Record last updated
Mar 5, 2025
Fax
(847) 318-2414
Medicaid ID
036109946 IL
Medicare enrollment
Enrolled (PECOS I20060804000200); accepts Medicare assignment
Medical or professional school
Wright State University Boonshoft School Of Medicine, 2001
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 1775 Ballard RD

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

  1. Abdulkareem AbuzirInternal Medicine Physician1841924222
  2. Nick AdimiInternal Medicine Physician1184325334
  3. Hardeep Ahdi, D.O.Internal Medicine Physician1346878055
  4. Bilal AhmedInternal Medicine Physician1073308821
  5. Neha Ahuja, PT, DPTPhysical Therapist1043890460
  6. Adil Alavi, M.D.Endocrinology, Diabetes & Metabolism Physician1649215161

Verify Chung-Kay Koh 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 036-109946
    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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2.4 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

6,431 Medicare Part D claims for 778 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Chung-Kay Koh6,431
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium898 claims
  2. Metformin Hcl503 claims
  3. Jardiance476 claims
  4. Lantus Solostar410 claims
  5. Ozempic288 claims
  6. Nano 2nd Gen Pen Needle250 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.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationPark Ridge, IL

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

Chung-Kay Koh among 436 endocrinology, diabetes & metabolism physician records in Illinois

Chung-Kay Koh, MD is one of 436 endocrinology, diabetes & metabolism 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2001 · median 2006 among the 295 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Illinois

There are 436 endocrinology, diabetes & metabolism physician records in Illinois.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Adil Alavi, M.D.Park Ridge, IL 600681649215161
  2. Lawrence Domont, M.D.Park Ridge, IL 600681043256910
  3. Shuyang Fang, MD, MPHPark Ridge, IL 600681134582497
  4. Nishat Fatima, MDPark Ridge, IL 600681760898936
  5. Irfan Khan, D.O.Park Ridge, IL 600681659807709
  6. Rebecca MoreyPark Ridge, IL 600681871989988
  7. Toral Patel, MDPark Ridge, IL 600681467065367
  8. Phillip Werner, M.D.Park Ridge, IL 600681255361788

Common questions

What is Chung-Kay Koh, MD's NPI number?

Chung-Kay Koh, MD's National Provider Identifier (NPI) is 1841216843, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chung-Kay Koh, MD located?

The NPPES record lists a practice address at 1775 Ballard RD, Park Ridge, IL, 60068. Phone: (847) 318-2400. Providers update this record themselves, so call before visiting.

How can I verify Chung-Kay Koh, MD's license?

NPPES lists Illinois license number 036-109946, 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 Chung-Kay Koh, MD prescribe under Medicare Part D?

In 2024, Chung-Kay Koh, MD had 6,431 Medicare Part D claims for 778 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

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.