THOMAS JOHNSON, MD
Specialist in MANCHESTER, New Hampshire. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
THOMAS JOHNSON, MD filed 217 Medicare Part D claims in 2023 as a Specialist in MANCHESTER, New Hampshire, prescribing 83% generic.
- 217
- Part D claims, 2023
- 83%
- generic prescribing
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.
THOMAS JOHNSON, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
217 49th percentile higher than 49% 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 THOMAS JOHNSON, MD?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in New Hampshire
How Specialist compares to other specialties among New Hampshire providers
Specialist share within New Hampshire
Specialist is one of the more visible NUCC categories in New Hampshire
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Specialist ABMS/AOA estimate
Est. board-certified rate (Specialist) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Specialist US NPIs
Specialty board-certified rate — Specialist estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
THOMAS JOHNSON, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 100 HITCHCOCK WAY, MANCHESTER, NH, 03104, with a listed phone of (603) 695-2500. NPI 1467433342 was issued on 11/08/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JOHNSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 217 prescription claims written by this provider, covering 33 Medicare beneficiaries and totaling roughly $31K in drug spend, split 17% brand-name and 83% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.
Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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 | 1467433342 |
|---|---|
| Specialty | Specialist |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/08/2005 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm THOMAS JOHNSON, MD's current license status, disciplinary history, and board certifications with the New Hampshire Board of Medicine in New Hampshire before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where THOMAS JOHNSON, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
17% brand-name claims vs 83% generic, on 217 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 518
- Total Day Supply
- 15,404
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $21K
- Generic Drug Cost
- $10K
Patient Demographics
- Average Patient Age
- 44.0 years
- Avg HCC Risk Score
- 1.37
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What THOMAS JOHNSON, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
37 claims
- Atenolol
Atenolol
22 claims
- Lisinopril
Lisinopril
18 claims
- Potassium Chloride
Potassium Chloride
18 claims
- Carvedilol
Carvedilol
17 claims
- Losartan Potassium 12
Losartan Potassium
12 claims
- Metoprolol Succinate 11
Metoprolol Succinate
11 claims
| Drug | Claims |
|---|---|
| Furosemide | 37 |
| Atenolol | 22 |
| Lisinopril | 18 |
| Potassium Chloride | 18 |
| Carvedilol | 17 |
| Losartan Potassium | 12 |
| Metoprolol Succinate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How THOMAS JOHNSON, MD fits within the Specialist landscape nationally.
THOMAS JOHNSON, MD's 217 claims are below the specialty average of 1,474.
Nearby Specialist Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as JOHNSON.
Compare Specialist nationally: see state-by-state distribution →
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Frequently Asked Questions
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Data Sources
- 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