William E. Zwack, D.D.S.
Oral and Maxillofacial Surgery (Dentist) · Fredench, MD
William E. Zwack, D.D.S. is an oral and maxillofacial surgery (dentist) with a practice address in Fredench, Maryland, and NPI 1841292992, issued on Jun 1, 2005. Check the license (Maryland 13178, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William E. Zwack
- Credential
- D.D.S.
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License number
- 13178 MD
Self-reported in NPPES; status is on the state search - Practice location
- 68 Thomas Johnson Drive, Fredench, MD 21702
- Phone
- (301) 694-2300
- Enumerated
- Jun 1, 2005
- Record last updated
- Jan 9, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (301) 694-7372
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 200 in Maryland → Look up another NPI →
Verify William E. Zwack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 13178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
329 Medicare Part D claims for 153 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. 87 claims were for opioids.
Most prescribed
- Amoxicillin119 claims
- Ibuprofen70 claims
- Hydrocodone-Acetaminophen61 claims
- Tramadol Hcl26 claims
- Clindamycin Hcl17 claims
- Azithromycin14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
William E. Zwack among 200 oral and maxillofacial surgery (dentist) records in Maryland
William E. Zwack, D.D.S. is one of 200 oral and maxillofacial surgery (dentist) records with a practice address in Maryland. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2009 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in Maryland
There are 200 oral and maxillofacial surgery (dentist) records in Maryland.
All 200 in Maryland → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- Anthony Contratto, DDS, MDFrederick, MD 217021588223325
- Vincent Difabio, D.D.S.Frederick, MD 217021457406266
- Adrianne Golly, M.D.Frederick, MD 217021689885998
- Ayesha Nawab, DMD, MDFrederick, MD 217021225299225
- Jay Haddad, D.D.S.Frederick, MD 217031790760700
- Mark Hoffrichter, D.D.S.Frederick, MD 217031285652339
- Mark Pitts, DDSFrederick, MD 217031447279120
- Howard Nelson, DDSHagerstown, MD 217401811067952
Common questions
What is William E. Zwack, D.D.S.'s NPI number?
William E. Zwack, D.D.S.'s National Provider Identifier (NPI) is 1841292992, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William E. Zwack, D.D.S. located?
The NPPES record lists a practice address at 68 Thomas Johnson Drive, Fredench, MD, 21702. Phone: (301) 694-2300. Providers update this record themselves, so call before visiting.
How can I verify William E. Zwack, D.D.S.'s license?
NPPES lists Maryland license number 13178, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does William E. Zwack, D.D.S. prescribe under Medicare Part D?
In 2024, William E. Zwack, D.D.S. had 329 Medicare Part D claims for 153 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.