NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1427410117 MD
Verify on CMS → Michael Gardner, MD
Cardiovascular Disease Physician in Portland, 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 24,795 in Cardiovascular 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
1K
Medicare Part D claims · 248 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Michael Gardner, MD filed 1,256 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Portland, Oregon, prescribing 83% generic.
- 1K
- Part D claims, 2023
- 83%
- 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.
Michael Gardner, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,256 Top 22% higher than 78% 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)
Michael Gardner, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 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 Michael Gardner, MD?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
1,256 59% vs specialty avg
Specialty distribution in Oregon
How Cardiovascular 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 Cardiovascular 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).
Michael Gardner, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 10000 SE MAIN ST STE 60, Portland, OR, 97216, with a listed phone of (503) 257-0959. NPI 1427410117 was issued on 03/22/2016.
Medicare Part D records for calendar year 2023 show 1,256 prescription claims written by this provider, covering 248 Medicare beneficiaries and totaling roughly $233K in drug spend, split 17% brand-name and 83% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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 | 1427410117 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/22/2016 |
Hospital and facility affiliations
Facilities where Michael Gardner, 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.
According to CMS billing records, Michael Gardner, MD is affiliated with 4 Medicare-billing facilities across 2 states, 1 of which carry a CMS Hospital overall star rating.
Mid-Columbia Medical Center
★★★★☆ 4/5
Hood River, OR
Acute Care Hospitals
CMS CCN: 380001
Klickitat County Public Hospital District NO 1
Goldendale, WA
Northwest Medical Foundation OF Tillamook
Tillamook, OR
Portland Adventist Medical Center
Portland, 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).
Brand vs generic prescribing mix · Typical
Michael Gardner, MD - brand share 17.0%
Cardiovascular Disease Physician average
17% brand-name claims vs 83% generic, on 1,256 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.
1,256
Total Claims
$233K
Total Drug Cost
248
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,918
- Total Day Supply
- 87,193
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $213K
- Generic Drug Cost
- $20K
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.52
- Gender Split
- 46% female / 54% male
- Age Distribution
- <65: 14, 65-74: 100, 75-84: 106, 85+: 28
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Gardner, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
216 claims
- Atorvastatin Calcium
Atorvastatin Calcium
155 claims
- Eliquis
Eliquis
120 claims
- Losartan Potassium
Losartan Potassium
111 claims
- Furosemide 74
Furosemide
74 claims
- Spironolactone 68
Spironolactone
68 claims
- Rosuvastatin Calcium 47
Rosuvastatin Calcium
47 claims
- Carvedilol 38
Carvedilol
38 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 216 |
| Atorvastatin Calcium | 155 |
| Eliquis Apixaban | 120 |
| Losartan Potassium | 111 |
| Furosemide | 74 |
| Spironolactone | 68 |
| Rosuvastatin Calcium | 47 |
| Carvedilol | 38 |
| Amiodarone Hcl | 37 |
| Isosorbide Mononitrate Er Isosorbide Mononitrate | 36 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Michael Gardner, MD fits within the Cardiovascular Disease Physician landscape nationally.
24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Michael Gardner, MD's 1,256 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Gardner.
Dr. Jacob Abraham
M.D.
Portland, OR
Dr. Vratika Agarwal
MBBS
Portland, OR
Dr. Shaun Ageno
M.D.
Portland, OR
Dr. Masud Ahmad
MD
Portland, OR
Dr. Norman Aiad
MD
Salem, OR
Compare Cardiovascular 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 Cardiovascular 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 Michael Gardner, MD's specialty? ▼
Michael Gardner, MD specializes in Cardiovascular Disease Physician and practices in Portland, Oregon. Credentials: MD.
How much does Michael Gardner, MD prescribe under Medicare Part D? ▼
In 2023, Michael Gardner, MD wrote 1,256 Medicare Part D claims totaling $233K in drug costs for 248 beneficiaries.
Where is Michael Gardner, MD located? ▼
Michael Gardner, MD is located at 10000 SE MAIN ST STE 60, Portland, OR, 97216. Phone: (503) 257-0959.
What is Michael Gardner, MD's NPI number? ▼
Michael Gardner, MD's National Provider Identifier (NPI) is 1427410117, issued on 03/22/2016.
Does Michael Gardner, MD prescribe more brand-name or generic drugs? ▼
Michael Gardner, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $213K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Michael Gardner, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Gardner, MD's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Gardner, MD accept Medicare? ▼
Michael Gardner, MD appears in CMS Medicare data with 1,256 Part D claims and 248 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Gardner, MD's credentials? ▼
Michael Gardner, MD's NPI is 1427410117 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
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.