DR. WILLIAM J FESSLER DDS
NPI 1124187539
Dentist in Norwalk, CT

Q: What is William Fessler's NPI number?

The NPI number for William Fessler is 1124187539. It was assigned to this individual provider in the NPPES registry on December 8, 2006.

Q: What is William Fessler's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Q: When was this NPI record last updated?

The NPPES record for William Fessler was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 December 08, 2006PECOS Enrolled

116 EAST AVENUE, NORWALK, CT 06851(203) 838-3939(203) 866-0406 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. William J Fessler Dds NPPES

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

DR. WILLIAM J FESSLER DDS (NPI 1124187539) is an individual dentist in Norwalk, Connecticut, licensed in Connecticut (006917) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124187539

Entity TypeIndividualMale

Primary Taxonomy122300000X

Provider Legal NameDR. WILLIAM J FESSLERCredential: DDS

Location Address116 EAST AVENUENorwalk, CT 06851

Mailing Address116 East AvenueNorwalk, CT 06851 · (203) 838-3939 · Fax (203) 866-0406

Phone(203) 838-3939

Fax(203) 866-0406

Sole ProprietorNo

Enumeration DateDecember 8, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1124187539 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers

Taxonomy Code122300000X

License✔ Licensed in CT · 006917

Definition

A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

116 EAST AVENUE, Norwalk, CT 06851

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Other Identifiers 2

Other698204United Concordia

Other7790Dellte Dental Of Nj

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 J Fessler Dds 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 06851 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

$93.86 typical visit price

range $60.82 – $183.10

Typical copayment $23.46 (range $15.20 – $45.77)

Most-billed visit code 99203

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.

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 Fessler's NPI number?

The NPI number for William Fessler is 1124187539. It was assigned to this individual provider in the NPPES registry on December 8, 2006.

Where is William Fessler located?

William Fessler practices at 116 East Avenue, Norwalk, CT 06851. The listed phone number is (203) 838-3939.

What is William Fessler's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is William Fessler enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for William Fessler was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.