2026 NPPES data Allergy & Immunology Physician NPI 1255399226 M.D.
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THOMAS JOHNSON, M.D.

Allergy & Immunology Physician in GAINESVILLE, Florida. 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
1K
Medicare Part D claims · 484 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$111.5K
169 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS JOHNSON, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in GAINESVILLE, Florida with a Medicare Part D prescribing footprint of 1K claims across 484 beneficiaries — 33% brand-name prescribing . Their CMS MIPS Final Score of 75/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $111.5K across 169 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THOMAS JOHNSON, M.D. reported a CMS MIPS final score of 75 out of 100, below the 83.1 national average, and filed 1,164 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

THOMAS JOHNSON, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

THOMAS JOHNSON, M.D. at a glance

Below national average

NPI registry status

Active

Issued 05/01/2006

NPI 1255399226

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

1,164 52% vs specialty avg

2023 prescription claims

Specialty avg: 764

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Florida

How Allergy & Immunology Physician compares to other specialties among Florida providers

Florida providers

Allergy & Immunology Physician share within Florida

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within Florida

Medicare quality performance — MIPS

THOMAS JOHNSON, M.D.'s 2023 MIPS final score plotted against the Allergy & Immunology Physician national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Allergy & Immunology Physician) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Allergy & Immunology Physician) — 75/100 vs national avg 83.1

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, M.D. is a Allergy & Immunology Physician provider practicing in GAINESVILLE, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1255399226. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

THOMAS JOHNSON, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 4343 W NEWBERRY RD, GAINESVILLE, FL, 32607, with a listed phone of (352) 331-3502. NPI 1255399226 was issued on 05/01/2006. 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 1,164 prescription claims written by this provider, covering 484 Medicare beneficiaries and totaling roughly $875K in drug spend, split 33% brand-name and 67% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

4343 W NEWBERRY RD
GAINESVILLE, FL 32607

Provider Details

NPI 1255399226
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 05/01/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

75
Final Score
Avg: 83.1

Reporting: Individual

Hospital and facility affiliations

Facilities where THOMAS JOHNSON, M.D. 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.

SIMEDHEALTH LLC
GAINESVILLE, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 THOMAS JOHNSON, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$111.5K

Largest payer

AstraZeneca Pharmaceuticals LP

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.

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to THOMAS JOHNSON, M.D.. To verify THOMAS JOHNSON, M.D.'s current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

THOMAS JOHNSON, M.D. — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 1,164 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.

1,164
Total Claims
$875K
Total Drug Cost
484
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,845
Total Day Supply
51,608
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$838K
Generic Drug Cost
$37K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.28
Gender Split
65% female / 35% male
Age Distribution
<65: 29, 65-74: 223, 75-84: 204, 85+: 28

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Levocetirizine Dihydrochloride
227
Ipratropium Bromide
105
Fluticasone Propionate
100
Albuterol Sulfate Hfa
Albuterol Sulfate
84
Montelukast Sodium
70
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
66
Epinephrine
50
Azelastine Hcl
43
Prednisone
43
Dupixent Syringe
Dupilumab
39

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Allergy & Immunology Physician Overview

How THOMAS JOHNSON, M.D. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

THOMAS JOHNSON, M.D.'s 1,164 claims are above the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as JOHNSON.

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS JOHNSON, M.D.'s specialty?
THOMAS JOHNSON, M.D. specializes in Allergy & Immunology Physician and practices in GAINESVILLE, Florida. Credentials: M.D..
How much does THOMAS JOHNSON, M.D. prescribe under Medicare Part D?
In 2023, THOMAS JOHNSON, M.D. wrote 1,164 Medicare Part D claims totaling $875K in drug costs for 484 beneficiaries.
What is THOMAS JOHNSON, M.D.'s Medicare quality score?
THOMAS JOHNSON, M.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is THOMAS JOHNSON, M.D. located?
THOMAS JOHNSON, M.D. is located at 4343 W NEWBERRY RD, GAINESVILLE, FL, 32607. Phone: (352) 331-3502.
What is THOMAS JOHNSON, M.D.'s NPI number?
THOMAS JOHNSON, M.D.'s National Provider Identifier (NPI) is 1255399226, issued on 05/01/2006.
Does THOMAS JOHNSON, M.D. prescribe more brand-name or generic drugs?
THOMAS JOHNSON, M.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $838K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does THOMAS JOHNSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS JOHNSON, M.D.'s most frequently prescribed drugs include Levocetirizine Dihydrochloride, Ipratropium Bromide, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS JOHNSON, M.D. accept Medicare?
THOMAS JOHNSON, M.D. appears in CMS Medicare data with 1,164 Part D claims and 484 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS JOHNSON, M.D.'s credentials?
THOMAS JOHNSON, M.D.'s NPI is 1255399226 with credentials M.D.. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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