DR. JOHN NICHOLAS SIENKO O.D.
NPI 1194895524
Optometrist in Wallingford, CT

Q: What is John Sienko's NPI number?

The NPI number for John Sienko is 1194895524. It was assigned to this individual provider in the NPPES registry on November 9, 2006.

Q: What is John Sienko'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 John Sienko was last updated on March 16, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 November 09, 2006PECOS Enrolled

821 N MAIN STREET EXT, WALLINGFORD, CT 06492(203) 265-5152(203) 265-1562 Get Directions Write a Review

NPPES record last updated: March 16, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. John Nicholas Sienko O.d. NPPES

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

DR. JOHN NICHOLAS SIENKO O.D. (NPI 1194895524) is an individual optometrist in Wallingford, Connecticut, licensed in Connecticut (914) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194895524

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. JOHN NICHOLAS SIENKOCredential: O.D.

Location Address821 N MAIN STREET EXTWallingford, CT 06492-2464

Mailing Address821 N Main Street ExtWallingford, CT 06492-2464 · (203) 265-5152 · Fax (203) 265-1562

Phone(203) 265-5152

Fax(203) 265-1562

Sole ProprietorNo

Enumeration DateNovember 9, 2006

Last NPPES UpdateMarch 16, 2010

✔ NPI 1194895524 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in CT · 914

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.

821 N MAIN STREET EXT, Wallingford, CT 06492

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Other Identifiers 4

MedicaidXXXXCT

Medicare PIN410000315CT

Medicare NSC0438720001CT

Medicare UPINT23032CT

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. John Nicholas Sienko O.d. 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 06492 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

$138.84 typical visit price

range $60.82 – $183.10

Typical copayment $34.71 (range $15.20 – $45.77)

Most-billed visit code 99204

Established Patient

$75.55 typical visit price

range $19.76 – $149.26

Typical copayment $18.88 (range $4.94 – $37.31)

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 4

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

WALLINGFORD EYE CARE CENTER P.C.

Optometrist

821 N MAIN STREET EXT
WALLINGFORD, CT 06492

South Central Connecticut Planning Region (203) 265-5152

DR. JANINE M ALBANESE O.D.

Optometrist

821 N MAIN STREET EXT
WALLINGFORD, CT 06492

South Central Connecticut Planning Region (203) 265-5152

ADVANCED SPINE & SPORTS MEDICINE LLC

Chiropractor

821 N MAIN STREET EXT, SUITE 110
WALLINGFORD, CT 06492

South Central Connecticut Planning Region (203) 265-7900

DR. KENNETH H ELDER OD

Optometrist

821 N MAIN STREET EXT
WALLINGFORD, CT 06492

South Central Connecticut Planning Region (203) 265-5152

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 John Sienko's NPI number?

The NPI number for John Sienko is 1194895524. It was assigned to this individual provider in the NPPES registry on November 9, 2006.

Where is John Sienko located?

John Sienko practices at 821 N Main Street Ext, Wallingford, CT 06492. The listed phone number is (203) 265-5152.

What is John Sienko's specialty?

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

Is John Sienko enrolled in Medicare?

Yes. John Sienko is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Sienko was last updated on March 16, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.