John Buyer, DDS, MPH, MS, MSS
NPI 1821008442 · Periodontics · Christiansburg, VA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Buyer, DDS, MPH, MS, MSS is a Periodontics provider in Christiansburg, VA (NPI 1821008442).
Provider details
- NPI number
- 1821008442
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- DDS, MPH, MS, MSS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 8653 (NC)
Specialties & taxonomies
Dental Providers
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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Chlorhexidine Gluconate | 87 | 78 |
| Etodolac | 64 | 62 |
| Amoxicillin | 57 | 45 |
| Dexamethasone | 21 | — |
| Fluoride (sodium)brand: Prevident 5000 Plus | 13 | — |
| Clindamycin Hcl | 12 | — |
| Fluoride (sodium)brand: Denta 5000 Plus | 12 | — |
| Fluoride (sodium) |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2009-09-25
Frequently asked questions
- What is John Buyer's NPI number?
- John Buyer's National Provider Identifier (NPI) is 1821008442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Buyer's specialty?
- John Buyer is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is John Buyer located?
- John Buyer's practice location on file with NPPES is 100 Arbor Dr Ste 105, Christiansburg, VA 24073-6585.
- What is John Buyer's phone number?
- The practice phone number listed in the NPPES registry for John Buyer is (540) 381-0475.
- Does John Buyer accept Medicare?
- John Buyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Buyer's NPI active?
- Yes — John Buyer's NPI (1821008442) is active in the NPPES registry as of the last update on 2009-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.