Dr. Michael Winslow Gardner, MD
- Medicare services, 2024
- 1,713
- Medicare patients, 2024
- 1,012
- Part D claims, 2024
- 2,406
- Hospital affiliations
- 7
- Industry payments
- $247
- Practice address
- 10123 Se Market Street, Portland, OR 97216
- Practice phone
- Call (503) 257-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gardner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael Winslow Gardner is a cardiologist in Portland, Oregon
Dr. Gardner practices at Adventist Health Portland in Portland, Oregon, part of Adventist Health.
Dr. Gardner's NPI, 1427410117, was assigned on March 22, 2016. Dr. Gardner holds Oregon license MD209315.
- NPI
- 1427410117NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800182791
- NPI enumeration date
- March 22, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 257-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Winslow Gardner practices at Adventist Health Portland in Portland, Oregon
Dr. Gardner's primary practice is Adventist Health Portland, at 10123 Se Market Street, Portland, OR 97216 in Multnomah County. The practice phone is (503) 257-2500.
- Adventist Health Portland10123 Se Market Street, Portland, OR 97216 · Multnomah CountyPhone(503) 257-2500
Source: Dmand AI Affiliation Data
Dr. Michael Winslow Gardner is affiliated with 10 sites of care and 6 medical groups
Dr. Gardner's primary practice is Adventist Health Portland in Portland, Oregon, part of Adventist Health. Dr. Gardner is also affiliated with OHSU Hospital. The medical group on file is Adventist Health Portland. Dmand AI also links Dr. Gardner to 5 more hospitals, 5 medical groups and 3 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Winslow Gardner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gardner practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Portland | Available with a free account |
| +9 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Winslow Gardner is one of 233 cardiologists in Oregon
Cardiovascular disease is Dr. Gardner's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Gardner is licensed in Oregon.
Specialties and state licenses
- Cardiovascular disease, OregonPrimary
Cardiologists near Dr. Gardner
Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael Winslow Gardner billed Medicare for 1,713 services in 2024
CMS data shows 1,713 Medicare services from Dr. Gardner across 17 procedure codes in 2024, for 1,012 Medicare patients. Medicare paid $62,036 for them.
Dr. Gardner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,4362024: 1,3119%
- Office and hospital visits
- 2023: 2062024: 29242%
- Other services
- 2023: 02024: 72
- Imaging
- 2023: 522024: 3827%
Where Dr. Gardner's Medicare services took place, 2024
- In an office43325%
- In a facility1,28075%
Dr. Gardner compared with the Oregon median for cardiologists, 2024
- Dr. Gardner
- Oregon median
- Medicare services
- 1,713vs 1,19743% above
- Medicare patients
- 1,012vs 75235% above
- Part D claims
- 2,284vs 1,60942% above
Medians across 234 cardiologists in Oregon with Dmand AI profiles that report each measure.
Dr. Gardner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Winslow Gardner treated 1,012 Medicare patients in 2024, average age 74
CMS counts 1,012 Medicare patients who saw Dr. Gardner in 2024. The largest group is 65 to 74, with 381 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 1.76, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gardner's median patient age at 74, with 52% women.
Dr. Gardner's Medicare patients by age, 2024
Dr. Gardner's Medicare patients by sex, 2024
- Women44644%
- Men56656%
Chronic conditions among Dr. Gardner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease46%
- Heart failure43%
- Atrial fibrillation40%
- Diabetes38%
- Chronic kidney disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gardner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Winslow Gardner wrote 2,406 Medicare Part D claims in 2024
In 2024, Dr. Gardner wrote 2,406 Medicare Part D claims for 379 patients. 78% of them were for generic drugs. CMS names the drug for 2,284 of them, across 29 drugs with 11 or more claims each, at $534,063 in total drug cost. In 2023, CMS named 1,177 claims across 22 drugs.
Dr. Gardner's Part D claims by kind of drug, 2024
- Generic1,866 claims78%
- Brand-name540 claims22%
Dr. Gardner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1772024: 2,28494%
Drugs named by CMS: 29 in 2024, 22 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Michael Winslow Gardner takes part in Medicare
Dr. Gardner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael Winslow Gardner received $247 in industry payments from 2019 to 2025
CMS Open Payments shows 6 general payments to Dr. Gardner from 5 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Biosense Webster, Inc. paid the most, $96.
General payments to Dr. Gardner by program year, 2019 to 2025
Companies that paid Dr. Gardner the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Winslow Gardner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael Winslow Gardner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael Winslow Gardner's NPI number?
Dr. Michael Winslow Gardner's NPI number is 1427410117. It was assigned on March 22, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Winslow Gardner?
Dr. Michael Winslow Gardner is a cardiologist in Portland, Oregon. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Michael Winslow Gardner practice?
Dr. Gardner practices at 10123 Se Market Street, Portland, OR 97216. Dr. Gardner's primary practice is Adventist Health Portland in Portland, Oregon, part of Adventist Health. Dmand AI also links Dr. Gardner to 5 hospitals, 5 medical groups and 3 group practices and clinics.
What is Dr. Michael Winslow Gardner's office phone number?
The practice phone on file for Dr. Gardner is (503) 257-2500.
What is Dr. Michael Winslow Gardner's medical license number?
Dr. Gardner holds Oregon license MD209315.
Which hospitals is Dr. Michael Winslow Gardner affiliated with?
Dr. Gardner practices at Adventist Health Portland in Portland, Oregon. Dr. Gardner is also affiliated with OHSU Hospital. Dmand AI links Dr. Gardner to 5 more hospitals.
What medical group is Dr. Michael Winslow Gardner part of?
Dr. Gardner is linked to Adventist Health Portland. Dmand AI links Dr. Gardner to 5 more medical groups.
Does Dr. Michael Winslow Gardner accept Medicare?
Yes. CMS data shows Dr. Gardner billed Medicare for 1,713 services in 2024, and Dr. Gardner accepts Medicare assignment.
How many Medicare patients does Dr. Michael Winslow Gardner see?
CMS counts 1,012 Medicare patients who saw Dr. Gardner in 2024, with an average age of 74.
What services does Dr. Michael Winslow Gardner bill to Medicare?
In 2024, Dr. Gardner's most billed Medicare services were heart test or procedure (93010), heart test or procedure (93306) and office visit, established patient (99214).
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What drugs does Dr. Michael Winslow Gardner prescribe most?
In 2024 Medicare Part D data, Dr. Gardner's most prescribed drugs by claims were Metoprolol Succinate, Eliquis and Atorvastatin Calcium.
Has Dr. Michael Winslow Gardner received payments from drug or device companies?
CMS Open Payments shows $247 in general payments to Dr. Gardner from 5 companies from 2019 to 2025. The largest total came from Biosense Webster, Inc.
How long has Dr. Michael Winslow Gardner been practicing?
Dr. Gardner graduated from medical school in 2016, 10 years ago.
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