NPI registry status
Active
2026 NPPES data Periodontics NPI 1821008442 DDS, MPH, MS, MSS
Verify on CMS → John Buyer, DDS, MPH, MS, MSS
Periodontics in Christiansburg, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,120 in Periodontics, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
316
Medicare Part D claims · 129 beneficiaries · Periodontics avg: 279
What the federal data shows
John Buyer, DDS, MPH, MS, MSS filed 316 Medicare Part D claims in 2024 as a Periodontics in Christiansburg, Virginia.
- 316
- Part D claims, 2024
- ≥56th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about John Buyer, DDS, MPH, MS, MSS
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1821008442), first enumerated 08/08/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 316 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1821008442 · Periodontics
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1821008442
- ENUM-LEGACY 2006
- TAX-MID 6K Periodontics
- RX-LIGHT 316
- BOOK-THIN 203 in Virginia
- PHOTO-ENUM Michael Ho · 2006
John Buyer, DDS, MPH, MS, MSS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
316 ≥ 56th percentile 56% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about John Buyer, DDS, MPH, MS, MSS?
Quality data not reportedPrimary specialty
Periodontics
Medicare Part D claims
316 13% vs specialty avg
Specialty distribution in Virginia
How Periodontics compares to other specialties among Virginia providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Periodontics. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1821008442 |
|---|---|
| Specialty | Periodontics |
| Credentials | DDS, MPH, MS, MSS |
| Gender | Male |
| NPI Issued | 08/08/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
316
Total Claims
$3K
Total Drug Cost
129
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 353.533
- Total Day Supply
- 5,909
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 78
Patient Demographics
- Average Patient Age
- 76.0 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 53% female / 47% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Buyer, DDS, MPH, MS, MSS prescribes most
Top Medicare Part D drugs by claim count, 2024
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
87 claims
- Etodolac
Etodolac
64 claims
- Amoxicillin
Amoxicillin
57 claims
- Dexamethasone 21
Dexamethasone
21 claims
- Prevident 5000 Plus 13
Prevident 5000 Plus
13 claims
- Clindamycin Hcl 12
Clindamycin Hcl
12 claims
- Denta 5000 Plus 12
Denta 5000 Plus
12 claims
- Sodium Fluoride 11
Sodium Fluoride
11 claims
| Drug | Claims |
|---|---|
| Chlorhexidine Gluconate | 87 |
| Etodolac | 64 |
| Amoxicillin | 57 |
| Dexamethasone | 21 |
| Prevident 5000 Plus Fluoride (Sodium) | 13 |
| Clindamycin Hcl | 12 |
| Denta 5000 Plus Fluoride (Sodium) | 12 |
| Sodium Fluoride Fluoride (Sodium) | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Periodontics Overview
How John Buyer, DDS, MPH, MS, MSS fits within the Periodontics landscape nationally.
6,120
Periodontics Providers in US
53
States with Periodontics
279
Avg Claims per Provider
John Buyer, DDS, MPH, MS, MSS's 316 claims are above the specialty average of 279.
Nationwide Periodontics peers with similar MIPS or enrollment year
Two federal-record peer sets for Buyer, both outside Virginia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Periodontics Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Buyer.
One of 203 Periodontics providers enrolled in Virginia, 5 are shown here.
Dr. Gavin Aaron
DDS, MS
Roanoke, VA
Dr. David Abbott
DDS
Richmond, VA
Dr. Tareq Abdulrasoul
DDS
Richmond, VA
Dr. Edison Abril
DDS, MS
Fairfax, VA
Dr. Elise Adrian
DMD
Fort Eustis, VA
Compare Periodontics nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Buyer, DDS, MPH, MS, MSS's specialty? ▼
John Buyer, DDS, MPH, MS, MSS specializes in Periodontics and practices in Christiansburg, Virginia. Credentials: DDS, MPH, MS, MSS.
How much does John Buyer, DDS, MPH, MS, MSS prescribe under Medicare Part D? ▼
In 2024, John Buyer, DDS, MPH, MS, MSS wrote 316 Medicare Part D claims totaling $3K in drug costs for 129 beneficiaries.
Where is John Buyer, DDS, MPH, MS, MSS located? ▼
John Buyer, DDS, MPH, MS, MSS is located at 100 ARBOR DR STE 105, Christiansburg, VA, 24073. Phone: (540) 381-0475.
What is John Buyer, DDS, MPH, MS, MSS's NPI number? ▼
John Buyer, DDS, MPH, MS, MSS's National Provider Identifier (NPI) is 1821008442, issued on 08/08/2006.
How many Periodontics providers are there in the US? ▼
There are 6,120 Periodontics providers across 53 states in the US. The average Periodontics provider writes 279 Medicare Part D claims per year.
What drugs does John Buyer, DDS, MPH, MS, MSS prescribe most often? ▼
Based on 2024 Medicare Part D data, John Buyer, DDS, MPH, MS, MSS's most frequently prescribed drugs include Chlorhexidine Gluconate, Etodolac, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Buyer, DDS, MPH, MS, MSS accept Medicare? ▼
John Buyer, DDS, MPH, MS, MSS appears in CMS Medicare data with 316 Part D claims and 129 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Buyer, DDS, MPH, MS, MSS's credentials? ▼
John Buyer, DDS, MPH, MS, MSS's NPI is 1821008442 with credentials DDS, MPH, MS, MSS. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.