NPI registry status
Active
2026 NPPES data Endodontics NPI 1548463714 DDS MSCD
Verify on CMS → Howard Ludington, DDS MSCD
Endodontics in Portsmouth, 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 5,873 in Endodontics, 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
503
Medicare Part D claims · 247 beneficiaries · Endodontics avg: 116
Industry payments
$353.2
10 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Howard Ludington, DDS MSCD filed 503 Medicare Part D claims in 2023 as a Endodontics in Portsmouth, New Hampshire.
- 503
- Part D claims, 2023
- $353.2
- industry payments (Sunshine Act)
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.
Howard Ludington, DDS MSCD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
503 Top 34% higher than 66% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Howard Ludington, DDS MSCD?
Quality data not reportedPrimary specialty
Endodontics
Medicare Part D claims
503 334% vs specialty avg
Specialty distribution in New Hampshire
How Endodontics 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 Endodontics. 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).
Howard Ludington, DDS MSCD appears in the CMS NPPES registry as an Endodontics provider holding DDS MSCD credentials at 288 LAFAYETTE RD, Portsmouth, NH, 03801, with a listed phone of (603) 436-6400. NPI 1548463714 was issued on 06/06/2007.
Medicare Part D records for calendar year 2023 show 503 prescription claims written by this provider, covering 247 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 3.6%.
Endodontics is a mid-sized specialty nationwide, with 5,873 enrolled providers across 53 states and an average of 116 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1548463714 |
|---|---|
| Specialty | Endodontics |
| Credentials | DDS MSCD |
| Gender | Male |
| NPI Issued | 06/06/2007 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Howard Ludington, DDS MSCD. Source: openpaymentsdata.cms.gov.
Total received
$353
Largest payer
Dentsply Sirona Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
503
Total Claims
$3K
Total Drug Cost
247
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 503
- Total Day Supply
- 3,539
- Brand Drug Cost
- $0
- Generic Drug Cost
- $3K
- Opioid Claims
- 18 (3.6% rate)
- Antibiotic Claims
- 363
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 0.67
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Howard Ludington, DDS MSCD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cephalexin
Cephalexin
216 claims
- Azithromycin
Azithromycin
87 claims
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
87 claims
- Diazepam 32
Diazepam
32 claims
- Clindamycin Hcl 30
Clindamycin Hcl
30 claims
- Amoxicillin 25
Amoxicillin
25 claims
- Acetaminophen-Code… 18
Acetaminophen-Codeine
18 claims
| Drug | Claims |
|---|---|
| Cephalexin | 216 |
| Azithromycin | 87 |
| Chlorhexidine Gluconate | 87 |
| Diazepam | 32 |
| Clindamycin Hcl | 30 |
| Amoxicillin | 25 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Endodontics Overview
How Howard Ludington, DDS MSCD fits within the Endodontics landscape nationally.
5,873
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider
Howard Ludington, DDS MSCD's 503 claims are above the specialty average of 116.
Nearby Endodontics Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Ludington.
Dr. Fereidoun Agha-Razi
DMD
Merrimack, NH
Dr. Aneesa Al-Khalidi
DMD
Nashua, NH
Dr. Gagan Dhaliwal
DMD
Londonderry, NH
Dr. John Diune
D.D.S.
Nashua, NH
Dr. Rachel Forbes
DMD
Dover, NH
Compare Endodontics nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New Hampshire medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Endodontics peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Howard Ludington, DDS MSCD's specialty? ▼
Howard Ludington, DDS MSCD specializes in Endodontics and practices in Portsmouth, New Hampshire. Credentials: DDS MSCD.
How much does Howard Ludington, DDS MSCD prescribe under Medicare Part D? ▼
In 2023, Howard Ludington, DDS MSCD wrote 503 Medicare Part D claims totaling $3K in drug costs for 247 beneficiaries.
Where is Howard Ludington, DDS MSCD located? ▼
Howard Ludington, DDS MSCD is located at 288 LAFAYETTE RD, Portsmouth, NH, 03801. Phone: (603) 436-6400.
What is Howard Ludington, DDS MSCD's NPI number? ▼
Howard Ludington, DDS MSCD's National Provider Identifier (NPI) is 1548463714, issued on 06/06/2007.
Does Howard Ludington, DDS MSCD prescribe opioids? ▼
Yes, Howard Ludington, DDS MSCD had 18 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
How many Endodontics providers are there in the US? ▼
There are 5,873 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does Howard Ludington, DDS MSCD prescribe most often? ▼
Based on 2023 Medicare Part D data, Howard Ludington, DDS MSCD's most frequently prescribed drugs include Cephalexin, Azithromycin, Chlorhexidine Gluconate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Howard Ludington, DDS MSCD accept Medicare? ▼
Howard Ludington, DDS MSCD appears in CMS Medicare data with 503 Part D claims and 247 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Howard Ludington, DDS MSCD's credentials? ▼
Howard Ludington, DDS MSCD's NPI is 1548463714 with credentials DDS MSCD. 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 (2023). 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.