John Nitzell, DDS
NPI 1912040080 · Periodontics · Hagerstown, MD
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nitzell, DDS is a Periodontics provider in Hagerstown, MD (NPI 1912040080).
Provider details
- NPI number
- 1912040080
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 11994 (MD)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Chlorhexidine Gluconate | 452 | 289 |
| Amoxicillin | 332 | 245 |
| Ibuprofen | 127 | 88 |
| Clindamycin Hcl | 40 | 28 |
| Azithromycin | 34 | 26 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 33 | 28 |
| Dexamethasone | 17 | — |
| Ibuprofenbrand: Ibu | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$624 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Nitzell's NPI number?
- John Nitzell's National Provider Identifier (NPI) is 1912040080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nitzell's specialty?
- John Nitzell is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is John Nitzell located?
- John Nitzell's practice location on file with NPPES is 19816 Leitersburg Pike, Hagerstown, MD 21742-1444.
- What is John Nitzell's phone number?
- The practice phone number listed in the NPPES registry for John Nitzell is (301) 797-7410.
- Does John Nitzell accept Medicare?
- John Nitzell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nitzell's NPI active?
- Yes — John Nitzell's NPI (1912040080) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.