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DR. WILLIAM NGU D.O.
NPI 1851655872
Family Medicine in Schaumburg, IL

Active since June 25, 2012PECOS EnrolledAccepts Medicare Assignment
89.66/100
CMS Quality Rating
455 S ROSELLE RD STE 121, SCHAUMBURG, IL 60193(630) 671-4980(630) 671-4989 Get Directions Write a Review

NPPES record last updated: May 10, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 10, 2021, Dec 11, 2020, May 14, 2018 and 1 more (4 updates tracked since 2017).

About Dr. William Ngu D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM NGU D.O. (NPI 1851655872) is an individual family medicine provider in Schaumburg, Illinois, licensed in Illinois (036136227) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Northwest Community Hospital 1, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1851655872
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. WILLIAM NGUCredential: D.O.
Location Address455 S ROSELLE RD STE 121Schaumburg, IL 60193-2966
Mailing Address455 S Roselle Rd Ste 121Schaumburg, IL 60193-2966 · (630) 671-4980 · Fax (630) 671-4989
Phone(630) 671-4980
Fax(630) 671-4989
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJune 25, 2012
Last NPPES UpdateMay 10, 20214 updates tracked since enumeration
NPPES CertifiedMay 10, 2021
✔ NPI 1851655872 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036136227
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
455 S ROSELLE RD STE 121, Schaumburg, IL 60193
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Secondary Practice Locations 2

Location 11792 E Oakton StDes Plaines, IL 60018-2110 · Phone (847) 827-4496 · Fax (847) 827-1256
Location 2150 N River Rd Ste 110Des Plaines, IL 60016 · Phone (847) 342-8956 · Fax (847) 342-8958

Other Identifiers 1

Other036136227IL · State License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William Ngu D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3779807599
PECOS Enrollment IDI20150126001618
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show William Ngu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwest Community Health Services Inc
5.4 mi
Obstetrics
880 W CENTRAL RD STE 6200
Arlington Heights, IL 60005
  • Reassigned Medicare billing, Illinois enrollment
  • 346 clinicians in this Medicare group
NPI 1467057513 (847) 618-0730
Endeavor Health Medical Group
21 mi
Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1497701882 (847) 570-5235

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
165 services100 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
125 services125 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
122 services89 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
37 services36 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
32 services32 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
29 services29 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwest Community Hospital 1

Acute Care Hospitals · Arlington Heights, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140252
Location800 W Central RoadArlington Heights, IL 60005 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60193 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.66/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality79.32
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers13 claims36 services$6.21 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. AIMEELEE BANEA VALEROSO M.D.
Family Medicine
455 S ROSELLE RD STE 121
SCHAUMBURG, IL 60193
Cook County (630) 671-4980

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Ngu's NPI number?

The NPI number for William Ngu is 1851655872. It was assigned to this individual provider in the NPPES registry on June 25, 2012.

Where is William Ngu located?

William Ngu practices at 455 S Roselle Rd Ste 121, Schaumburg, IL 60193. The listed phone number is (630) 671-4980.

What is William Ngu's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is William Ngu enrolled in Medicare?

Yes. William Ngu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Ngu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Ngu reassigns Medicare benefits to 2 organizations: Northwest Community Health Services Inc (Arlington Heights, IL) and Endeavor Health Medical Group (Evanston, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Ngu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Ngu accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list William Ngu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Ngu affiliated with any hospitals?

According to CMS data, William Ngu is affiliated with Northwest Community Hospital 1.

When was this NPI record last updated?

The NPPES record for William Ngu was last updated on May 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.