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DR. WILLIAM E ZWACK D.D.S.
NPI 1841292992
Dentist - Oral and Maxillofacial Surgery in Fredench, MD

Active since June 01, 2005Opted out of Medicare · through Sep 1, 2026
68 THOMAS JOHNSON DRIVE, SUITE A, FREDENCH, MD 21702(301) 694-2300(301) 694-7372 Get Directions Write a Review

NPPES record last updated: January 9, 2009. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William E Zwack D.d.s. NPPES

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

DR. WILLIAM E ZWACK D.D.S. (NPI 1841292992) is an individual oral and maxillofacial surgery provider in Fredench, Maryland, licensed in Maryland (13178) and active in the NPI registry since June 2005. He has opted out of Medicare through September 1, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1841292992
Entity TypeIndividualMale
Primary Taxonomy1223S0112X
Provider Legal NameDR. WILLIAM E ZWACKCredential: D.D.S.
Location Address68 THOMAS JOHNSON DRIVE, SUITE AFredench, MD 21702
Mailing Address68 Thomas Johnson Drive, Suite AFredench, MD 21702 · (301) 694-2300 · Fax (301) 694-7372
Phone(301) 694-2300
Fax(301) 694-7372
Sole ProprietorNo
Enumeration DateJune 1, 2005
Last NPPES UpdateJanuary 9, 2009
✔ NPI 1841292992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · Oral and Maxillofacial SurgeryDental Providers
Taxonomy Code1223S0112X
License✔ Licensed in MD · 13178
Definition
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
68 THOMAS JOHNSON DRIVE, Fredench, MD 21702
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Other Identifiers 1

Medicare UPINU99955MD

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. William E Zwack D.d.s. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from September 1, 2014 through September 1, 2026.

Opt-Out Effective DateSeptember 1, 2014
Opt-Out In Effect ThroughSeptember 1, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21702 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
$89.75 typical visit price
range $57.99 – $175.57
Typical copayment $22.43 (range $14.49 – $43.89)
Most-billed visit code 99203
Established Patient
$72.23 typical visit price
range $18.66 – $143.02
Typical copayment $18.05 (range $4.66 – $35.75)
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

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

DR. AYESHA NAWAB DMD, MD
Dentist (Oral and Maxillofacial Surgery)
68 THOMAS JOHNSON DRIVE, SUITE A
FREDERICK, MD 21702
Frederick County (301) 694-2300

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 Zwack's NPI number?

The NPI number for William Zwack is 1841292992. It was assigned to this individual provider in the NPPES registry on June 1, 2005.

Where is William Zwack located?

William Zwack practices at 68 Thomas Johnson Drive Suite A, Fredench, MD 21702. The listed phone number is (301) 694-2300.

What is William Zwack's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Is William Zwack enrolled in Medicare?

No. William Zwack has opted out of Medicare through September 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does William Zwack accept?

Health plans from Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 6 other insurers list William Zwack 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 William Zwack was last updated on January 9, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.