WILLIAM DONALD YEMM D.D.S.
NPI 1407064389
Dentist - General Practice in Rock Falls, IL

Q: What is William Yemm's NPI number?

The NPI number for William Yemm is 1407064389. It was assigned to this individual provider in the NPPES registry on May 21, 2007.

Q: What is William Yemm's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: Is William Yemm enrolled in Medicare?

No. William Yemm has opted out of Medicare through November 16, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for William Yemm was last updated on January 27, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since May 21, 2007Opted out of Medicare · through Nov 16, 2027

1300 W 2ND ST, ROCK FALLS, IL 61071(815) 626-2230(815) 626-6339 Get Directions Write a Review

NPPES record last updated: January 27, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About William Donald Yemm D.d.s. NPPES

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

WILLIAM DONALD YEMM D.D.S. (NPI 1407064389) is an individual general practice provider in Rock Falls, Illinois, licensed in Illinois (019.017688) and active in the NPI registry since May 2007. He has opted out of Medicare through November 16, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1407064389

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameWILLIAM DONALD YEMMCredential: D.D.S.

Location Address1300 W 2ND STRock Falls, IL 61071-1005

Mailing Address17561 Timber DrSterling, IL 61081-9289 · (815) 626-9638 · Fax (815) 686-9638

Phone(815) 626-2230

Fax(815) 626-6339

Sole ProprietorNo

Enumeration DateMay 21, 2007

Last NPPES UpdateJanuary 27, 2012

✔ NPI 1407064389 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in IL · 019.017688

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

1300 W 2ND ST, Rock Falls, IL 61071

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

William Donald Yemm D.d.s. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from November 16, 2017 through November 16, 2027.

Opt-Out Effective DateNovember 16, 2017

Opt-Out In Effect ThroughNovember 16, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61071 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

$85.71 typical visit price

range $54.80 – $168.44

Typical copayment $21.42 (range $13.70 – $42.11)

Most-billed visit code 99203

Established Patient

$68.64 typical visit price

range $17.16 – $136.56

Typical copayment $17.16 (range $4.29 – $34.14)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Leave this field empty

Other Providers at the Same Location NPPES 20

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

PARVEEN K VARMA M.D.

Physical Medicine & Rehabilitation (Pain Medicine)