DR. WILLIAM C HILLMANN OD
NPI 1629039789
Optometrist in Rockford, IL

Q: What is William Hillmann's NPI number?

The NPI number for William Hillmann is 1629039789. It was assigned to this individual provider in the NPPES registry on March 29, 2006.

Q: What is William Hillmann's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for William Hillmann was last updated on August 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since March 29, 2006PECOS Enrolled

1603 N ALPINE RD, STE 121, ROCKFORD, IL 61107(815) 209-9420(815) 425-5244 Get Directions Write a Review

NPPES record last updated: August 11, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. William C Hillmann Od NPPES

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

DR. WILLIAM C HILLMANN OD (NPI 1629039789) is an individual optometrist in Rockford, Illinois, licensed in Illinois (046-009168) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629039789

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. WILLIAM C HILLMANNCredential: OD

Location Address1603 N ALPINE RD, STE 121Rockford, IL 61107-1439

Mailing Address1603 N Alpine Rd, Ste 121Rockford, IL 61107-1439 · (815) 209-9420 · Fax (815) 425-5244

Phone(815) 209-9420

Fax(815) 425-5244

Sole ProprietorYes

Enumeration DateMarch 29, 2006

Last NPPES UpdateAugust 11, 2021

NPPES CertifiedAugust 11, 2021

✔ NPI 1629039789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in IL · 046-009168

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Also ListedOptometrist · Corneal and Contact ManagementTaxonomy 152WC0802X · License 046009168 (IL)

1603 N ALPINE RD, Rockford, IL 61107

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William C Hillmann Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61107 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

$127.46 typical visit price

range $54.80 – $168.44

Typical copayment $31.86 (range $13.70 – $42.11)

Most-billed visit code 99204

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.

Other Providers at the Same Location NPPES 3

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

DR. CHARVI D. PATEL OD

Optometrist

1603 N ALPINE RD, SUITE 121
ROCKFORD, IL 61107

Winnebago County (815) 397-5959

PRIMARY EYE CARE CENTERS, PC

Optometrist

1603 N ALPINE RD, ST 121
ROCKFORD, IL 61107

Winnebago County (815) 209-9420

YOUNG HEE LEE

Optometrist

1603 N ALPINE RD, SUITE 121
ROCKFORD, IL 61107

Winnebago County (815) 397-5959

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 Hillmann's NPI number?

The NPI number for William Hillmann is 1629039789. It was assigned to this individual provider in the NPPES registry on March 29, 2006.

Where is William Hillmann located?

William Hillmann practices at 1603 N Alpine Rd Ste 121, Rockford, IL 61107. The listed phone number is (815) 209-9420.

What is William Hillmann's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is William Hillmann enrolled in Medicare?

Yes. William Hillmann is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Hillmann was last updated on August 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.