Mara B. Peterson, MD
Internal Medicine Physician · Oregon City, OR
Mara B. Peterson, MD is an internal medicine physician with a practice address in Oregon City, Oregon, and NPI 1659950194, issued on Apr 2, 2021. Check the license (Oregon MD215039, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mara B. Peterson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD215039 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Division St, Oregon City, OR 97045
- Phone
- (503) 650-6270
- Enumerated
- Apr 2, 2021
- Record last updated
- Sep 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20240822002608); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 1500 Division St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Allen, MDEmergency Medicine Physician1467915843
- Zachary Amos, DOInternal Medicine Physician1831776582
- Yo Atteberry, MDEmergency Medicine Physician1548217193
- Amit Barve, MDHospitalist Physician1760667059
- Hannah Beachwood, DOEmergency Medicine Physician1497498711
- Diane Brace, FNP-BCFamily Nurse Practitioner1598427296
Verify Mara B. Peterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD215039Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
286 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Levothyroxine Sodium19 claims
- Pantoprazole Sodium17 claims
- Tamsulosin Hcl15 claims
- Eliquis14 claims
- Quetiapine Fumarate14 claims
- Omeprazole13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $14.44
1 payment: food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Providence Health And Services OregonMilwaukie, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mara B. Peterson among 2,116 internal medicine physician records in Oregon
Mara B. Peterson, MD is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2008 among the 1,232 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Oregon
There are 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Oregon City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Zachary Amos, DOOregon City, OR 970451831776582
- Lee Cordova, MDOregon City, OR 970451699727917
- Antonio Cordova, MDOregon City, OR 970451205402245
- George Edwards, MDOregon City, OR 970451356392559
- Richard Goldenberg, M.D.Oregon City, OR 970451750474490
- Madeline Hoon, DOOregon City, OR 970451144970633
- Gregory Kautz, MD MPHOregon City, OR 970451518458926
- Arkady Klykov, M.D.Oregon City, OR 970451629273594
Common questions
What is Mara B. Peterson, MD's NPI number?
Mara B. Peterson, MD's National Provider Identifier (NPI) is 1659950194, issued on Apr 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mara B. Peterson, MD located?
The NPPES record lists a practice address at 1500 Division St, Oregon City, OR, 97045. Phone: (503) 650-6270. Providers update this record themselves, so call before visiting.
How can I verify Mara B. Peterson, MD's license?
NPPES lists Oregon license number MD215039, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mara B. Peterson, MD prescribe under Medicare Part D?
In 2024, Mara B. Peterson, MD had 286 Medicare Part D claims for 70 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.