WILLIAM REIFF, M.D.
NPI 1831540897
Specialist in Elgin, IL

Q: What is Rosin Optical Co., Inc.'s NPI number?

The NPI number for Rosin Optical Co., Inc. is 1831540897. It was assigned to this organization in the NPPES registry on June 30, 2016. The provider is doing business as William Reiff, M.D..

Q: What is Rosin Optical Co., Inc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since June 30, 2016

1435 N RANDALL RD, SUITE 102, ELGIN, IL 60123(847) 841-8866(847) 841-8986 Get Directions Write a Review

NPPES record last updated: June 30, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About William Reiff, M.d. NPPES

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

WILLIAM REIFF, M.D. (NPI 1831540897) is a healthcare organization registered as a specialist in Elgin, Illinois and active in the NPI registry since June 2016. The organization lists Nicholas A Chiaramonti, Director, as its authorized official.

NPPES Registry Identity

NPI1831540897

Entity TypeOrganization

Primary Taxonomy174400000X

Legal Business NameROSIN OPTICAL CO., INC.

Location Address1435 N RANDALL RD, SUITE 102Elgin, IL 60123-2306

Mailing Address6233 Cermak RdBerwyn, IL 60402-2317 · (708) 749-2020 · Fax (708) 749-2069

Phone(847) 841-8866

Fax(847) 841-8986

Organization SubpartNo

Authorized OfficialNicholas A ChiaramontiDirector · (630) 546-8319

Enumeration DateJune 30, 2016

✔ NPI 1831540897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in IL · 036052088

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

1435 N RANDALL RD, Elgin, IL 60123

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Other Names 1

Doing Business AsWilliam Reiff, M.d.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross Blue Shield of Wyoming, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Reiff, M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 87 clinicians reassign Medicare billing to William Reiff, M.D., which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Nearest to this location (20)

See all 87

William Atkinson, O.D.

Optometry

NPI 1396752671

2100 N. HUNTINGTON DRIVE UNIT A
Algonquin, IL 60102

(815) 338-0107

✔ PECOS✔ Accepts Medicare6.9 mi

Scott Ullmann, O.D.

Optometry

NPI 1396000352

1318 N ROSELLE RD SUITE B
Schaumburg, IL 60195

(847) 278-3888

✔ PECOS✔ Accepts Medicare13 mi

Pamela Marzec, O.D.

Optometry

NPI 1134472996

999 N PLAZA DR STE 100
Schaumburg, IL 60173

(847) 413-2110

✔ PECOS✔ Accepts Medicare15 mi

Tehneiyat Macci, O.D.

Optometry

NPI 1982017851

152 S BLOOMINGDALE RD
Bloomingdale, IL 60108

(630) 980-4446

✔ PECOS✔ Accepts Medicare15 mi

Daniel Krall, O.D.

Optometry

NPI 1265695357

591 S EASTWOOD DR
Woodstock, IL 60098

(815) 338-0107

✔ PECOS✔ Accepts Medicare17 mi

Matthew Odonnell, O.D.

Optometry

NPI 1558800078

1706 E ROOSEVELT RD
Wheaton, IL 60187

(630) 653-8885

✔ PECOS✔ Accepts Medicare20 mi

Meeta Saha, O.D.

Optometry

NPI 1063762060

313 W DUNDEE RD
Buffalo Grove, IL 60089

(847) 541-1184

✔ PECOS20 mi

Darshita Patel, O.D.

Optometry

NPI 1588952576

28375 DAVIS PKWY STE 905
Warrenville, IL 60555

(630) 836-1616

✔ PECOS✔ Accepts Medicare20 mi

Larry Nierman, O.D.

Optometry

NPI 1891839114

151 MCHENRY RD
Buffalo Grove, IL 60089

(847) 459-6626

✔ PECOS✔ Accepts Medicare20 mi

Richard Torson, O.D.

Optometry

NPI 1164494993

698 ROOSEVELT RD
Glen Ellyn, IL 60137

(630) 545-2020

✔ PECOS✔ Accepts Medicare20 mi

Shreya Patel, O.D.

Optometry

NPI 1992189104

464 W HALF DAY RD
Buffalo Grove, IL 60089

(847) 913-5545

✔ PECOS21 mi

Erin Szklarski, OD

Optometry

NPI 1164536298

1987 W GALENA BLVD
Aurora, IL 60506

(630) 892-6610

✔ PECOS✔ Accepts Medicare21 mi

Mujahid Saeed, O.D.

Optometry

NPI 1255560413

630 N ADDISON RD
Villa Park, IL 60181

(708) 636-9393

✔ PECOS21 mi

Rajinder Kaur, O.D.

Optometry

NPI 1912371071

705 E OGDEN AVE
Naperville, IL 60563

(630) 778-2020

✔ PECOS✔ Accepts Medicare22 mi

Paulina Niziol, OD

Optometry

NPI 1699405209

705 E OGDEN AVE
Naperville, IL 60563

(630) 778-2020

✔ PECOS✔ Accepts Medicare22 mi

Steven Kim, OD

Optometry

NPI 1316723273

4760 MAIN ST
Lisle, IL 60532

(630) 969-2020

✔ PECOS✔ Accepts Medicare23 mi

Sheila Oshaughnessy, O.D.

Optometry

NPI 1568499341

4760 MAIN ST
Lisle, IL 60532

(630) 969-2020

✔ PECOS23 mi

Paras Patel, OD

Optometry

NPI 1134727860

900 IL-83
Villa Park, IL 60181

(630) 530-5303

✔ PECOS24 mi

Marvin Heimlich, O.D.

Optometry

NPI 1316026313

307 S MILWAUKEE AVE LIBERTYVILLE VISION CENTER
Libertyville, IL 60048

(847) 541-1184

✔ PECOS✔ Accepts Medicare24 mi

Blake Dowell, O.D.

Optometry

NPI 1407089147

307 S MILWAUKEE AVE LIBERTYVILLE VISION CENTER
Libertyville, IL 60048

(847) 362-3444

✔ PECOS✔ Accepts Medicare24 mi

See all 87 clinicians

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

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 Rosin Optical Co., Inc.'s NPI number?

The NPI number for Rosin Optical Co., Inc. is 1831540897. It was assigned to this organization in the NPPES registry on June 30, 2016. The provider is doing business as William Reiff, M.D..

Where is Rosin Optical Co., Inc. located?

Rosin Optical Co., Inc. is located at 1435 N Randall Rd Suite 102, Elgin, IL 60123. The listed phone number is (847) 841-8866.

What is Rosin Optical Co., Inc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Rosin Optical Co., Inc. enrolled in Medicare?

Yes. Rosin Optical Co., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rosin Optical Co., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 87 clinicians, all in Optometry, reassign their Medicare billing to Rosin Optical Co., Inc.. A 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 the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Rosin Optical Co., Inc. accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana and Oscar Health list Rosin Optical Co., Inc. 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.

When was this NPI record last updated?

The NPPES record for Rosin Optical Co., Inc. was last updated on June 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.