John Longley, D.D.S.
NPI 1053315317 · General Practice Dentistry · Timonium, MD
John Longley, D.D.S. is a General Practice Dentistry provider in Timonium, MD (NPI 1053315317).
Provider details
- NPI number
- 1053315317
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- License
- 13371 (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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 26 | 23 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 18 | 18 |
| Amoxicillin | 18 | 15 |
| Azithromycin | 15 | 15 |
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
- 2005-06-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Longley's NPI number?
- John Longley's National Provider Identifier (NPI) is 1053315317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Longley's specialty?
- John Longley is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is John Longley located?
- John Longley's practice location on file with NPPES is 20 E Timonium Rd, Timonium, MD 21093-3456.
- What is John Longley's phone number?
- The practice phone number listed in the NPPES registry for John Longley is (410) 308-4880.
- Is John Longley's NPI active?
- Yes — John Longley's NPI (1053315317) 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.