NPI registry status
Active
2026 NPPES data Periodontics NPI 1194718031 D.D.S., M.S.
Verify on CMS → John Herrin, D.D.S., M.S.
Periodontics in Bedford, New Hampshire.
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
56
Medicare Part D claims · 23 beneficiaries · Periodontics avg: 279
What the federal data shows
John Herrin, D.D.S., M.S. filed 56 Medicare Part D claims in 2024 as a Periodontics in Bedford, New Hampshire.
- 56
- Part D claims, 2024
- ≥0th
- 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 Herrin, D.D.S., M.S.
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 1194718031), first enumerated 08/25/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 56 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 1194718031 · Periodontics
NPI-10 · ENUM-LEGACY · TAX-MID · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1194718031
- ENUM-LEGACY 2005
- TAX-MID 6K Periodontics
- RX-TRACE 56
- BOOK-THIN 36 in New Hampshire
- PHOTO-ENUM Stephen Snitzer · 2005
John Herrin, D.D.S., M.S.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
56 ≥ 0th percentile 0% 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 Herrin, D.D.S., M.S.?
Quality data not reportedPrimary specialty
Periodontics
Medicare Part D claims
56 80% vs specialty avg
Specialty distribution in New Hampshire
How Periodontics compares to other specialties among New Hampshire 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 | 1194718031 |
|---|---|
| Specialty | Periodontics |
| Credentials | D.D.S., M.S. |
| Gender | Male |
| NPI Issued | 08/25/2005 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
56
Total Claims
$414
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 56
- Total Day Supply
- 474
- Generic Drug Cost
- $413
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 1.07
- Age Distribution
- <65: 0, 65-74: 13, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Chlorhexidine Gluconate | 16 |
| Ibuprofen | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Periodontics Overview
How John Herrin, D.D.S., M.S. fits within the Periodontics landscape nationally.
6,120
Periodontics Providers in US
53
States with Periodontics
279
Avg Claims per Provider
John Herrin, D.D.S., M.S.'s 56 claims are below the specialty average of 279.
Nationwide Periodontics peers with similar MIPS or enrollment year
Two federal-record peer sets for Herrin, both outside New Hampshire so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Periodontics Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Herrin.
One of 36 Periodontics providers enrolled in New Hampshire, 5 are shown here.
Dr. Irina Adler
DDS
Manchester, NH
Dr. Robert Alvarenga
D.M.D.
West Lebanon, NH
Dr. Pamela Baldassarre
DMD
Bedford, NH
Dr. Stephen Berube
D.M.D
Manchester, NH
Dr. Stephen Boone
DDS
Laconia, NH
Compare Periodontics nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Herrin, D.D.S., M.S.'s specialty? ▼
John Herrin, D.D.S., M.S. specializes in Periodontics and practices in Bedford, New Hampshire. Credentials: D.D.S., M.S..
How much does John Herrin, D.D.S., M.S. prescribe under Medicare Part D? ▼
In 2024, John Herrin, D.D.S., M.S. wrote 56 Medicare Part D claims totaling $414 in drug costs for 23 beneficiaries.
Where is John Herrin, D.D.S., M.S. located? ▼
John Herrin, D.D.S., M.S. is located at 170 S RIVER RD, Bedford, NH, 03110. Phone: (603) 624-8787.
What is John Herrin, D.D.S., M.S.'s NPI number? ▼
John Herrin, D.D.S., M.S.'s National Provider Identifier (NPI) is 1194718031, issued on 08/25/2005.
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 Herrin, D.D.S., M.S. prescribe most often? ▼
Based on 2024 Medicare Part D data, John Herrin, D.D.S., M.S.'s most frequently prescribed drugs include Chlorhexidine Gluconate, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Herrin, D.D.S., M.S. accept Medicare? ▼
John Herrin, D.D.S., M.S. appears in CMS Medicare data with 56 Part D claims and 23 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Herrin, D.D.S., M.S.'s credentials? ▼
John Herrin, D.D.S., M.S.'s NPI is 1194718031 with credentials D.D.S., M.S.. 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.