Dr. Ryanne J. Mayersak, MD
- Medicare services, 2024
- 94
- Medicare patients, 2024
- 98
- Part D claims, 2016
- 18
- MIPS score, 2024
- 99
- Hospital affiliations
- 1
- Practice address
- 3181 SW Sam Jackson Park Road, Portland, OR 97239
- Practice phone
- Call (503) 494-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mayersak's professional email, personal email and mobile number
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Dr. Ryanne J. Mayersak is an emergency medicine physician in Portland, Oregon
Dr. Mayersak practices at OHSU Hospital in Portland, Oregon, part of State of Oregon.
Dr. Mayersak's NPI, 1194927558, was assigned on June 5, 2007. Dr. Mayersak graduated from George Washington University School of Medicine in 2003. Dr. Mayersak holds Oregon license MD171647.
- NPI
- 1194927558NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810089083
- NPI enumeration date
- June 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 494-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryanne J. Mayersak practices at OHSU Hospital in Portland, Oregon
Dr. Mayersak's primary practice is OHSU Hospital, at 3181 SW Sam Jackson Park Road, Portland, OR 97239 in Multnomah County. The practice phone is (503) 494-9000.
- OHSU Hospital3181 SW Sam Jackson Park Road, Portland, OR 97239 · Multnomah CountyPhone(503) 494-9000
Source: Dmand AI Affiliation Data
Dr. Ryanne J. Mayersak is affiliated with 2 sites of care and 1 medical group
Dr. Mayersak's primary practice is OHSU Hospital in Portland, Oregon, part of State of Oregon. The medical group on file is Oregon Health & Science University (OHSU). Dmand AI also links Dr. Mayersak to 1 more clinical lab, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryanne J. Mayersak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mayersak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OHSU Hospital | 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. Ryanne J. Mayersak is one of 962 emergency medicine physicians in Oregon
Emergency medicine is Dr. Mayersak's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Mayersak's licenses on file in 2 states: Oregon and District of Columbia.
Specialties and state licenses
- Emergency medicine, OregonPrimary
- Emergency medical services (emergency medicine), District of Columbia
Emergency medicine physicians near Dr. Mayersak
Counts of emergency medicine physicians 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. Ryanne J. Mayersak billed Medicare for 94 services in 2024
CMS data shows 94 Medicare services from Dr. Mayersak across 3 procedure codes in 2024, for 98 Medicare patients. Medicare paid $12,751 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mayersak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1052024: 9410%
Dr. Mayersak compared with the Oregon median for emergency medicine physicians, 2024
- Dr. Mayersak
- Oregon median
- Medicare services
- 94vs 17747% below
- Medicare patients
- 98vs 18146% below
- Part D claims
- 18vs 4963% below
Medians across 1,000 emergency medicine physicians in Oregon with Dmand AI profiles that report each measure.
Dr. Mayersak'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. Ryanne J. Mayersak treated 98 Medicare patients in 2024, average age 72
CMS counts 98 Medicare patients who saw Dr. Mayersak in 2024. The largest group is 65 to 74, with 29 patients. 75% of them have high blood pressure, and 60% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.23, 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. Mayersak's median patient age at 67, with 60% women.
Dr. Mayersak's Medicare patients by age, 2024
Dr. Mayersak's Medicare patients by sex, 2024
- Women5657%
- Men4243%
Chronic conditions among Dr. Mayersak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol60%
- Mood disorders52%
- Arthritis48%
- Anxiety45%
- Depression44%
- Atrial fibrillation32%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mayersak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women60%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryanne J. Mayersak wrote 18 Medicare Part D claims in 2016
In 2016, Dr. Mayersak wrote 18 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $67 in total drug cost.
Dr. Mayersak's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Ryanne J. Mayersak scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Mayersak for performance year 2024, reported through an alternative payment model (APM). Dr. Mayersak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mayersak's MIPS scores, performance year 2024
- 99of 100Final score
- 84.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ryanne J. Mayersak graduated from George Washington University School of Medicine
Dr. Mayersak graduated from George Washington University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryanne J. Mayersak'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Ryanne J. Mayersak
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. Ryanne J. Mayersak's NPI number?
Dr. Ryanne J. Mayersak's NPI number is 1194927558. It was assigned on June 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryanne J. Mayersak?
Dr. Ryanne J. Mayersak is an emergency medicine physician in Portland, Oregon. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Ryanne J. Mayersak practice?
Dr. Mayersak practices at 3181 SW Sam Jackson Park Road, Portland, OR 97239. Dr. Mayersak's primary practice is OHSU Hospital in Portland, Oregon, part of State of Oregon. Dmand AI also links Dr. Mayersak to 1 clinical lab.
What is Dr. Ryanne J. Mayersak's office phone number?
The practice phone on file for Dr. Mayersak is (503) 494-9000.
What is Dr. Ryanne J. Mayersak's medical license number?
Dr. Mayersak holds Oregon license MD171647, one of the licenses on file in 2 states.
Which states has Dr. Ryanne J. Mayersak been licensed in?
Dmand AI has state licenses on file for Dr. Mayersak in Oregon and District of Columbia.
Which hospitals is Dr. Ryanne J. Mayersak affiliated with?
Dr. Mayersak practices at OHSU Hospital in Portland, Oregon.
What medical group is Dr. Ryanne J. Mayersak part of?
Dr. Mayersak is linked to Oregon Health & Science University (OHSU).
Does Dr. Ryanne J. Mayersak accept Medicare?
Yes. CMS data shows Dr. Mayersak billed Medicare for 94 services in 2024, and Dr. Mayersak accepts Medicare assignment.
What is Dr. Ryanne J. Mayersak's MIPS score?
Dr. Mayersak's MIPS final score for performance year 2024 is 99 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Dr. Ryanne J. Mayersak see?
CMS counts 98 Medicare patients who saw Dr. Mayersak in 2024, with an average age of 72.
What services does Dr. Ryanne J. Mayersak bill to Medicare?
In 2024, Dr. Mayersak's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
Where did Dr. Ryanne J. Mayersak go to medical school?
Dr. Mayersak graduated from George Washington University School of Medicine in 2003.
What drugs does Dr. Ryanne J. Mayersak prescribe most?
In 2016 Medicare Part D data, Dr. Mayersak's most prescribed drugs by claims were Cephalexin.
How long has Dr. Ryanne J. Mayersak been practicing?
Dr. Mayersak graduated from medical school in 2003, 23 years ago.
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