William Zwack, D.D.S.
NPI 1841292992 · Oral and Maxillofacial Surgery (Dentist) · Fredench, MD
William Zwack, D.D.S. is a Oral and Maxillofacial Surgery (Dentist) provider in Fredench, MD (NPI 1841292992).
Provider details
- NPI number
- 1841292992
- Entity type
- Individual
- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)Dental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 13178 (MD)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 119 | 109 |
| Ibuprofen | 70 | 69 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 61 | 61 |
| Tramadol Hcl | 26 | 26 |
| Clindamycin Hcl | 17 | 17 |
| Azithromycin | 14 | 11 |
| Ibuprofenbrand: Ibu | 14 | 14 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-01
- Last updated
- 2009-01-09
Frequently asked questions
- What is William Zwack's NPI number?
- William Zwack's National Provider Identifier (NPI) is 1841292992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Zwack's specialty?
- William Zwack is listed in the NPPES registry with a primary specialty of Oral and Maxillofacial Surgery (Dentist) (Dental Providers).
- Where is William Zwack located?
- William Zwack's practice location on file with NPPES is 68 Thomas Johnson Drive, Fredench, MD 21702.
- What is William Zwack's phone number?
- The practice phone number listed in the NPPES registry for William Zwack is (301) 694-2300.
- Is William Zwack's NPI active?
- Yes — William Zwack's NPI (1841292992) is active in the NPPES registry as of the last update on 2009-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.