DR. WILLIAM BRENNAN ARDEN DDS, PHD, DMSC, MPH
NPI 1285912154
Dentist - Endodontics in Bethesda, MD

Q: What is William Arden's NPI number?

The NPI number for William Arden is 1285912154. It was assigned to this individual provider in the NPPES registry on July 26, 2011.

Q: What is William Arden's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Endodontics, with taxonomy code 1223E0200X.

Q: When was this NPI record last updated?

The NPPES record for William Arden was last updated on January 15, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 26, 2011PECOS Enrolled

8955 WOOD RD, BETHESDA, MD 20889(301) 295-8051 Get Directions Write a Review

NPPES record last updated: January 15, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 1, 2024, Jun 10, 2022, Jul 6, 2017 and 1 more (4 updates tracked since 2016).

On this page

About Dr. William Brennan Arden Dds, Phd, Dmsc, Mph NPPES

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

DR. WILLIAM BRENNAN ARDEN DDS, PHD, DMSC, MPH (NPI 1285912154) is an individual endodontics provider in Bethesda, Maryland, licensed in Texas (27167) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1285912154

Entity TypeIndividualMale

Primary Taxonomy1223E0200X

Provider Legal NameDR. WILLIAM BRENNAN ARDENCredential: DDS, PHD, DMSC, MPH

Location Address8955 WOOD RDBethesda, MD 20889-5628

Mailing Address1960 Mendon RdCumberland, RI 02864-4318 · (401) 333-1516

Phone(301) 295-8051

Sole ProprietorNo

Enumeration DateJuly 26, 2011

Last NPPES UpdateJanuary 15, 20254 updates tracked since enumeration

NPPES CertifiedJanuary 15, 2025

✔ NPI 1285912154 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyDentist · EndodonticsDental Providers

Taxonomy Code1223E0200X

Licenses✔ Licensed in TX · 27167✔ Licensed in RI · DEN03439✔ Licensed in MA · DN1857462✔ Licensed in MD · VA-0013

Definition

The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.

Also ListedDentistTaxonomy 122300000X · License DN1857462 (MA)

Also ListedDentist · General PracticeTaxonomy 1223G0001X · License 27167 (TX)

8955 WOOD RD, Bethesda, MD 20889

Open in Google Maps ↗

Secondary Practice Locations 2

Location 11960 Mendon RdCumberland, RI 02864-4318 · Phone (401) 333-1516

Location 27201 Wisconsin Ave Ste 370Bethesda, MD 20814-4846 · Phone (301) 264-5015

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

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 Brennan Arden Dds, Phd, Dmsc, Mph 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 20889 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

$100.31 typical visit price

range $65.18 – $194.86

Typical copayment $25.07 (range $16.29 – $48.71)

Most-billed visit code 99203

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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.

DR. CHRISTOPHER DALE BRADLEY DDS

Dentist (Endodontics)