NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1922116557 M.D.
Verify on CMS → Martin Johnson, M.D.
Pulmonary Disease Physician in Salem, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,271 in Pulmonary Disease Physician, 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
5K
Medicare Part D claims · 434 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$432.99
21 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
Martin Johnson, M.D. filed 4,705 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Salem, Oregon, prescribing 70% generic.
- 5K
- Part D claims, 2023
- 70%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Martin Johnson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,705 Top 7% higher than 93% 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
✓
Board certification likely (heuristic, not verified)
Martin Johnson, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Martin Johnson, M.D.?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
4,705 223% vs specialty avg
Specialty distribution in Oregon
How Pulmonary Disease Physician compares to other specialties among Oregon 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 Pulmonary Disease Physician. 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).
Martin Johnson, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 801 MISSION ST SE, Salem, OR, 97302, with a listed phone of (503) 588-3945. NPI 1922116557 was issued on 08/25/2006.
Medicare Part D records for calendar year 2023 show 4,705 prescription claims written by this provider, covering 434 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 30% brand-name and 70% generic by claim count, with an opioid prescribing rate of 5.0%.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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 | 1922116557 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/25/2006 |
Hospital and facility affiliations
Facilities where Martin 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.
Salem Health
Salem, OR
Salem Pulmonary Associates PC
Salem, OR
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 Martin Johnson, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$433
Largest payer
Merck Sharp & Dohme LLC
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.
Brand vs generic prescribing mix · Above average
Martin Johnson, M.D. - brand share 30.0%
Pulmonary Disease Physician average
30% brand-name claims vs 70% generic, on 4,705 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.
4,705
Total Claims
$1.1M
Total Drug Cost
434
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,289
- Total Day Supply
- 165,699
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $1.0M
- Generic Drug Cost
- $102K
- Opioid Claims
- 233 (5.0% rate)
- Antibiotic Claims
- 496
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.74
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 53, 65-74: 173, 75-84: 168, 85+: 40
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Martin Johnson, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
382 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
348 claims
- Azithromycin
Azithromycin
345 claims
- Zolpidem Tartrate
Zolpidem Tartrate
227 claims
- Trazodone Hcl
Trazodone Hcl
223 claims
- Trelegy Ellipta 141
Trelegy Ellipta
141 claims
- Montelukast Sodium 138
Montelukast Sodium
138 claims
- Spiriva Respimat 138
Spiriva Respimat
138 claims
| Drug | Claims |
|---|---|
| Prednisone | 382 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 348 |
| Azithromycin | 345 |
| Zolpidem Tartrate | 227 |
| Trazodone Hcl | 223 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 141 |
| Montelukast Sodium | 138 |
| Spiriva Respimat Tiotropium Bromide | 138 |
| Clonazepam | 114 |
| Symbicort Budesonide/Formoterol Fumarate | 101 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Martin Johnson, M.D. fits within the Pulmonary Disease Physician landscape nationally.
9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Martin Johnson, M.D.'s 4,705 claims are above the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Johnson.
Rishi Arora
Medford, OR
Dr. Kamaljit Atwal
DO
Portland, OR
Dr. Fayez Bader
M.D.
Salem, OR
Dr. Berta Baldovino Navarro
MD
Medford, OR
Dr. Rick Balestra
M.D.
Portland, OR
Compare Pulmonary Disease Physician 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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pulmonary Disease Physician 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.
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Frequently Asked Questions
What is Martin Johnson, M.D.'s specialty? ▼
Martin Johnson, M.D. specializes in Pulmonary Disease Physician and practices in Salem, Oregon. Credentials: M.D..
How much does Martin Johnson, M.D. prescribe under Medicare Part D? ▼
In 2023, Martin Johnson, M.D. wrote 4,705 Medicare Part D claims totaling $1.1M in drug costs for 434 beneficiaries.
Where is Martin Johnson, M.D. located? ▼
Martin Johnson, M.D. is located at 801 MISSION ST SE, Salem, OR, 97302. Phone: (503) 588-3945.
What is Martin Johnson, M.D.'s NPI number? ▼
Martin Johnson, M.D.'s National Provider Identifier (NPI) is 1922116557, issued on 08/25/2006.
Does Martin Johnson, M.D. prescribe more brand-name or generic drugs? ▼
Martin Johnson, M.D.'s prescribing is 30% brand-name and 70% generic drugs by claim count, with $1.0M in brand drug costs.
Does Martin Johnson, M.D. prescribe opioids? ▼
Yes, Martin Johnson, M.D. had 233 opioid claims in 2023 with an opioid prescribing rate of 5.0%.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Martin Johnson, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Martin Johnson, M.D.'s most frequently prescribed drugs include Prednisone, Albuterol Sulfate Hfa, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Martin Johnson, M.D. accept Medicare? ▼
Martin Johnson, M.D. appears in CMS Medicare data with 4,705 Part D claims and 434 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Martin Johnson, M.D.'s credentials? ▼
Martin Johnson, M.D.'s NPI is 1922116557 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
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.