Dr. Mark A. Wozniak, MD
- Medicare services, 2023
- 21
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 11,279
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 500 NE Multnomah St, Portland, OR 97232
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Portland, Oregon
Find Dr. Wozniak's professional email, personal email and mobile number
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Dr. Mark A. Wozniak is an internist in Portland, Oregon
Dr. Wozniak practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon.
Dr. Wozniak's NPI, 1972610095, was assigned on August 24, 2006. Dr. Wozniak graduated from University of Texas Medical Branch at Galveston in 1991. Dr. Wozniak holds Oregon license MD17949.
- NPI
- 1972610095NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618057050
- NPI enumeration date
- August 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Wozniak practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon
Dr. Wozniak's primary practice is Kaiser Foundation Health Plan of the Northwest, at 500 NE Multnomah St, Portland, OR 97232 in Multnomah County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest500 NE Multnomah St, Portland, OR 97232 · Multnomah CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark A. Wozniak is affiliated with 2 sites of care and 1 medical group
Dr. Wozniak's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Wozniak to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark A. Wozniak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wozniak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark A. Wozniak is one of 1,680 internists in Oregon
Internal medicine is Dr. Wozniak's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Wozniak's licenses on file in 2 states: Oregon and Washington.
Specialties and state licenses
- Internal medicine, OregonPrimary
- Washington license
Internists near Dr. Wozniak
Counts of internists 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. Mark A. Wozniak billed Medicare for 21 services in 2023
CMS data shows 21 Medicare services from Dr. Wozniak across 1 procedure code in 2023, all of them office visits, for 11 Medicare patients. Medicare paid $1,309 for them. Every service was in an office.
Dr. Wozniak's Medicare services by type, 2019 to 2023
- 2019
- 2023
- Office and hospital visits
- 2019: 232023: 219%
Dr. Wozniak compared with the Oregon median for internists, 2023
- Dr. Wozniak
- Oregon median
- Medicare services
- 21vs 30093% below
- Medicare patients
- 11vs 13292% below
- Part D claims
- 10,769vs 22248.5 times
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Wozniak's most billed Medicare procedure codes, 2023
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. Mark A. Wozniak treated 11 Medicare patients in 2024, average age 69
CMS counts 11 Medicare patients who saw Dr. Wozniak in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wozniak's median patient age at 64, with 36% women.
Dr. Wozniak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Wozniak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women36%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark A. Wozniak wrote 11,279 Medicare Part D claims in 2024
In 2024, Dr. Wozniak wrote 11,279 Medicare Part D claims for 843 patients. 90% of them were for generic drugs. CMS names the drug for 10,769 of them, across 127 drugs with 11 or more claims each, at $417,718 in total drug cost. In 2023, CMS named 11,718 claims across 127 drugs.
Dr. Wozniak's Part D claims by kind of drug, 2024
- Generic10,114 claims90%
- Brand-name986 claims9%
- Other179 claims2%
Dr. Wozniak'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.
Drug classes CMS tracks in Dr. Wozniak's Part D claims, 2024
- Opioids4%478 of 11,279 claims
- Antibiotics1%106 of 11,279 claims
- Antipsychotics, patients 65 and over0%14 of 11,279 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 11,7182024: 10,7698%
Drugs named by CMS: 127 in 2024, 127 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. Mark A. Wozniak takes part in Medicare
Dr. Wozniak 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. Mark A. Wozniak graduated from University of Texas Medical Branch at Galveston
Dr. Wozniak graduated from University of Texas Medical Branch at Galveston in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Wozniak'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Mark A. Wozniak
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. Mark A. Wozniak's NPI number?
Dr. Mark A. Wozniak's NPI number is 1972610095. It was assigned on August 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Wozniak?
Dr. Mark A. Wozniak is an internist in Portland, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark A. Wozniak practice?
Dr. Wozniak practices at 500 NE Multnomah St, Portland, OR 97232. Dr. Wozniak's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. Dmand AI also links Dr. Wozniak to 1 group practice or clinic.
What is Dr. Mark A. Wozniak's office phone number?
The practice phone on file for Dr. Wozniak is (503) 813-2440.
What is Dr. Mark A. Wozniak's medical license number?
Dr. Wozniak holds Oregon license MD17949, one of the licenses on file in 2 states.
Which states has Dr. Mark A. Wozniak been licensed in?
Dmand AI has state licenses on file for Dr. Wozniak in Oregon and Washington.
What medical group is Dr. Mark A. Wozniak part of?
Dr. Wozniak is linked to Kaiser Permanente Northwest.
Does Dr. Mark A. Wozniak accept Medicare?
Yes. CMS data shows Dr. Wozniak billed Medicare for 21 services in 2023, and Dr. Wozniak accepts Medicare assignment.
How many Medicare patients does Dr. Mark A. Wozniak see?
CMS counts 11 Medicare patients who saw Dr. Wozniak in 2024, with an average age of 69.
What services does Dr. Mark A. Wozniak bill to Medicare?
In 2023, Dr. Wozniak's most billed Medicare services were office visit, established patient (99214).
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Where did Dr. Mark A. Wozniak go to medical school?
Dr. Wozniak graduated from University of Texas Medical Branch at Galveston in 1991.
What drugs does Dr. Mark A. Wozniak prescribe most?
In 2024 Medicare Part D data, Dr. Wozniak's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Losartan Potassium.
How long has Dr. Mark A. Wozniak been practicing?
Dr. Wozniak graduated from medical school in 1991, 35 years ago.
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