NPPES file of Aug 9, 2026

Lo-Ku Chiang, M.D.

Nephrology Physician · Arlington Heights, IL

Lo-Ku Chiang, M.D. is a nephrology physician with a practice address in Arlington Heights, Illinois, and NPI 1386842557, issued on Jul 10, 2007. Check the license (Illinois 036118582, 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
1386842557
Name
Lo-Ku Chiang
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
036118582 IL
Self-reported in NPPES; status is on the state search
Practice location
121 S Wilke RD Ste 111, Arlington Heights, IL 60005
Phone
(847) 394-1843
Enumerated
Jul 10, 2007
Record last updated
Nov 22, 2024
Fax
(847) 394-1208
Medicaid ID
036118582 IL
Medicare enrollment
Enrolled (PECOS I20070814000430); accepts Medicare assignment
Medical or professional school
Ohio State University College Of Medicine, 2001
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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8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →

Also registered at 121 S Wilke RD Ste 111

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

  1. Min Cho, D.O.Nephrology Physician1134668064
  2. Amitabha Mitra, M.D.Nephrology Physician1811976954
  3. Azza Suleiman, M.D.Nephrology Physician1982684262

Verify Lo-Ku Chiang 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 036118582    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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18% fewer Medicare Part D claims than the average nephrology physician in 2024

1,195 Medicare Part D claims for 207 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Lo-Ku Chiang1,195
  2. Specialty average1,465

Most prescribed

  1. Calcitriol120 claims
  2. Amlodipine Besylate113 claims
  3. Losartan Potassium90 claims
  4. Nifedipine Er76 claims
  5. Bumetanide75 claims
  6. Hydralazine Hcl69 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.

Industry payments in 2024: $16.81

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lo-Ku Chiang$16.81
  2. Specialty average$3,091.37

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

  1. Associates IN Nephrology SCBuffalo Grove, IL

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

Lo-Ku Chiang among 572 nephrology physician records in Illinois

Lo-Ku Chiang, M.D. is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 43% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2001 · median 2002 among the 433 with a school on file
  • Record last updated2024 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Illinois

There are 572 nephrology physician records in Illinois.

All 572 in Illinois → Every provider in Arlington Heights → Nephrology Physician nationwide →

The 8 nephrology physician records with the nearest ZIP codes

  1. Min Cho, D.O.Arlington Heights, IL 600051134668064
  2. Amitabha Mitra, M.D.Arlington Heights, IL 600051811976954
  3. Azza Suleiman, M.D.Arlington Heights, IL 600051982684262
  4. Ryyan HyderElk Grove Village, IL 600071053730895
  5. Lisa Pillsbury, MDElk Grove Village, IL 600071558369231
  6. Mohamed Rahman, MDElk Grove Village, IL 600071770580672
  7. Raju Ray, MDElk Grove Village, IL 600071487652186
  8. Khurram Saleem, M.D.Elk Grove Village, IL 600071467730192

Common questions

What is Lo-Ku Chiang, M.D.'s NPI number?

Lo-Ku Chiang, M.D.'s National Provider Identifier (NPI) is 1386842557, issued on Jul 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Lo-Ku Chiang, M.D. located?

The NPPES record lists a practice address at 121 S Wilke RD Ste 111, Arlington Heights, IL, 60005. Phone: (847) 394-1843. Providers update this record themselves, so call before visiting.

How can I verify Lo-Ku Chiang, M.D.'s license?

NPPES lists Illinois license number 036118582, 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 Lo-Ku Chiang, M.D. prescribe under Medicare Part D?

In 2024, Lo-Ku Chiang, M.D. had 1,195 Medicare Part D claims for 207 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.

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.