William Ngu, D.O.
Family Medicine Physician · Schaumburg, IL
William Ngu, D.O. is a family medicine physician with a practice address in Schaumburg, Illinois, and NPI 1851655872, issued on Jun 25, 2012. Check the license (Illinois 036136227, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Ngu
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036136227 IL
Self-reported in NPPES; status is on the state search - Practice location
- 455 S Roselle RD Ste 121, Schaumburg, IL 60193
- Phone
- (630) 671-4980
- Enumerated
- Jun 25, 2012
- Record last updated
- May 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 671-4989
- Medicare enrollment
- Enrolled (PECOS I20150126001618); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 455 S Roselle RD Ste 121
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aimeelee Valeroso, M.D.Family Medicine Physician1801949409
Verify William Ngu 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 036136227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average family medicine physician in 2024
3,308 Medicare Part D claims for 284 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium365 claims
- Amlodipine Besylate172 claims
- Lisinopril159 claims
- Losartan Potassium121 claims
- Metoprolol Succinate120 claims
- Metformin Hcl106 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): 89.7 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).
Bills Medicare through one group practice
- Endeavor Health Medical GroupArlington Heights, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Ngu among 6,215 family medicine physician records in Illinois
William Ngu, D.O. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 61% of them.
- NPI issued2012 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 family medicine physician records list a practice address in Schaumburg
They are 35 of the 1,911 NPPES records with a practice address in Schaumburg, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Schaumburg → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mohammed Sajid Ansari, MDSchaumburg, IL 601931649492620
- Jenny Hau, DOSchaumburg, IL 601931568108553
- Alan Kanter, M.D.Schaumburg, IL 601931194912220
- Maki Sato, M.D.Schaumburg, IL 601931962760314
- Zahid Shuttari, MDSchaumburg, IL 601931902843345
- Thomas Smiley, M.D.Schaumburg, IL 601931043423197
- Aimeelee Valeroso, M.D.Schaumburg, IL 601931801949409
- James Youn, MDSchaumburg, IL 601931881742708
Common questions
What is William Ngu, D.O.'s NPI number?
William Ngu, D.O.'s National Provider Identifier (NPI) is 1851655872, issued on Jun 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is William Ngu, D.O. located?
The NPPES record lists a practice address at 455 S Roselle RD Ste 121, Schaumburg, IL, 60193. Phone: (630) 671-4980. Providers update this record themselves, so call before visiting.
How can I verify William Ngu, D.O.'s license?
NPPES lists Illinois license number 036136227, 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 William Ngu, D.O. prescribe under Medicare Part D?
In 2024, William Ngu, D.O. had 3,308 Medicare Part D claims for 284 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is William Ngu, D.O.'s MIPS final score?
The 2023 MIPS final score is 89.7 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.