John Louis, DMD LLC
NPI 1639258965 · Periodontics · Easton, MD
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Louis, DMD LLC is a Periodontics provider in Easton, MD (NPI 1639258965).
Provider details
- NPI number
- 1639258965
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- DMD LLC
- Sex
- Male
- Sole proprietor
- No
- License
- 11448 (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
19 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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 137 | 107 |
| Ibuprofen | 87 | 68 |
| Azithromycin | 27 | 22 |
| Cephalexin | 19 | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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
- 2006-11-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Louis's NPI number?
- John Louis's National Provider Identifier (NPI) is 1639258965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Louis's specialty?
- John Louis is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is John Louis located?
- John Louis's practice location on file with NPPES is 218 Bay Street, Easton, MD 21601.
- What is John Louis's phone number?
- The practice phone number listed in the NPPES registry for John Louis is (410) 820-9599.
- Does John Louis accept Medicare?
- John Louis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Louis's NPI active?
- Yes — John Louis's NPI (1639258965) 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.