2026 NPPES data Specialist NPI 1467433342 MD
Verify on CMS →

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.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
217
Medicare Part D claims · 33 beneficiaries · Specialist avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs

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

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 reported

NPI registry status

Active

Issued 11/08/2005

NPI 1467433342

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

217 85% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in New Hampshire

How Specialist compares to other specialties among New Hampshire providers

New Hampshire providers

Specialist share within New Hampshire

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within New Hampshire

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — ABMS / AOA estimate

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

100 HITCHCOCK WAY
MANCHESTER, NH 03104

Provider Details

NPI 1467433342
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 11/08/2005

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.

MARY HITCHCOCK MEMORIAL HOSPITAL
★★★☆☆ 3/5
LEBANON, NH
Acute Care Hospitals
CMS CCN: 300003
DARTMOUTH-HITCHCOCK CLINIC
MANCHESTER, NH

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

THOMAS JOHNSON, MD — brand share 17.0%
Specialty average (est.)

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.

217
Total Claims
$31K
Total Drug Cost
33
Medicare Beneficiaries

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

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 →

Frequently Asked Questions

What is THOMAS JOHNSON, MD's specialty?
THOMAS JOHNSON, MD specializes in Specialist and practices in MANCHESTER, New Hampshire. Credentials: MD.
How much does THOMAS JOHNSON, MD prescribe under Medicare Part D?
In 2023, THOMAS JOHNSON, MD wrote 217 Medicare Part D claims totaling $31K in drug costs for 33 beneficiaries.
Where is THOMAS JOHNSON, MD located?
THOMAS JOHNSON, MD is located at 100 HITCHCOCK WAY, MANCHESTER, NH, 03104. Phone: (603) 695-2500.
What is THOMAS JOHNSON, MD's NPI number?
THOMAS JOHNSON, MD's National Provider Identifier (NPI) is 1467433342, issued on 11/08/2005.
Does THOMAS JOHNSON, MD prescribe more brand-name or generic drugs?
THOMAS JOHNSON, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $21K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does THOMAS JOHNSON, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS JOHNSON, MD's most frequently prescribed drugs include Furosemide, Atenolol, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS JOHNSON, MD accept Medicare?
THOMAS JOHNSON, MD appears in CMS Medicare data with 217 Part D claims and 33 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS JOHNSON, MD's credentials?
THOMAS JOHNSON, MD's NPI is 1467433342 with credentials MD. 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

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