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NELSON C YU MD
NPI 1447297601
Internal Medicine - Sleep Medicine in Granite City, IL

Active since May 31, 2006PECOS Enrolled
2044 MADISON AVE STE 15, GRANITE CITY, IL 62040(618) 798-8405(509) 798-8116 Get Directions Write a Review

NPPES record last updated: April 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 19, 2026, May 23, 2023, Mar 6, 2020 and 1 more (4 updates tracked since 2017).

About Nelson C Yu Md NPPES

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

NELSON C YU MD (NPI 1447297601) is an individual sleep medicine provider in Granite City, Illinois, licensed in Illinois (03615448) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1447297601
Entity TypeIndividualMale
Primary Taxonomy207RS0012X
Provider Legal NameNELSON C YUCredential: MD
Location Address2044 MADISON AVE STE 15Granite City, IL 62040-4641
Mailing Address2044 Madison Ave Ste 15Granite City, IL 62040-4641 · (618) 798-8405 · Fax (509) 798-8116
Phone(618) 798-8405
Fax(509) 798-8116
Sole ProprietorYes
Medical School CMSOtherGraduated 1991
Enumeration DateMay 31, 2006
Last NPPES UpdateApril 19, 20264 updates tracked since enumeration
NPPES CertifiedApril 19, 2026
✔ NPI 1447297601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License✔ Licensed in IL · 03615448
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License MD00045444 (WA), 036.154438 (IL)
2044 MADISON AVE STE 15, Granite City, IL 62040
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nelson C Yu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3779554233
PECOS Enrollment IDI20210518002361
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

3

Medicare enrollment records show Nelson Yu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ahs Il Medical Group LLC
0.1 mi
Clinic/Center
2100 MADISON AVE
Granite City, IL 62040
  • Reassigned Medicare billing, Illinois enrollment
  • 107 clinicians in this Medicare group
NPI 1659098101 (818) 666-0602
Deaconess Illinois Specialty Clinic, Inc.
25 mi
Interventional Cardiology
509 HAMACHER ST
Waterloo, IL 62298
  • Reassigned Medicare billing, Illinois enrollment
  • 228 clinicians in this Medicare group
NPI 1336856806 (618) 939-4200
Rcch Trios Health LLC
1,562 mi
Internal Medicine
3730 PLAZA WAY
Kennewick, WA 99338
  • Reassigned Medicare billing, Washington enrollment
  • 159 clinicians in this Medicare group
NPI 1831682806 (509) 221-6450

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 8

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.
194 services110 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
85 services85 patients
Test to measure expiratory airflow and volume changes before and after medication administration 94060
This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.
74 services72 patients
Test to examine how well the lungs exchange gases 94729
This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
60 services59 patients
Test to determine lung volumes using sensors 94726
This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.
59 services58 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.
25 services23 patients

Hospital Affiliations CMS Care Compare 3

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

Alton Memorial Hospital

Acute Care Hospitals · Alton, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140002
LocationOne Memorial DriveAlton, IL 62002 · Madison County
Emergency services Birthing friendly

Gateway Regional Medical Center

Acute Care Hospitals · Granite City, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140125
Location2100 Madison AvenueGranite City, IL 62040 · Madison County
Emergency services

Anderson Hospital

Acute Care Hospitals · Maryville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140289
Location6800 State Route 162Maryville, IL 62062 · Madison County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62040 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
$131.14 typical visit price
range $56.28 – $173.35
Typical copayment $32.78 (range $14.07 – $43.33)
Most-billed visit code 99204
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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.

Referred Medical Equipment & Supplies CMS DME claims 21

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

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
15 suppliers154 claims154 services$34.85 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
8 suppliers74 claims75 services$79.60 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
8 suppliers72 claims173 services$31.05 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
10 suppliers93 claims457 services$17.89 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
7 suppliers56 claims306 services$13.55 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
14 suppliers159 claims159 services$51.04 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Nelson Yu's NPI number?

The NPI number for Nelson Yu is 1447297601. It was assigned to this individual provider in the NPPES registry on May 31, 2006.

Where is Nelson Yu located?

Nelson Yu practices at 2044 Madison Ave Ste 15, Granite City, IL 62040. The listed phone number is (618) 798-8405.

What is Nelson Yu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Nelson Yu enrolled in Medicare?

Yes. Nelson Yu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Nelson Yu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nelson Yu reassigns Medicare benefits to 3 organizations: Ahs Il Medical Group LLC (Granite City, IL), Deaconess Illinois Specialty Clinic, Inc. (Waterloo, IL) and Rcch Trios Health LLC (Kennewick, WA). 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 Nelson Yu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nelson Yu accept?

Health plans from UnitedHealthcare list Nelson Yu 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 Nelson Yu affiliated with any hospitals?

According to CMS data, Nelson Yu is affiliated with Alton Memorial Hospital, Gateway Regional Medical Center and Anderson Hospital.

When was this NPI record last updated?

The NPPES record for Nelson Yu was last updated on April 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.