Margaret Mary Hayes, MD
Family Medicine Physician · Portland, OR
Margaret Mary Hayes, MD is a family medicine physician with a practice address in Portland, Oregon, and NPI 1437164951, issued on Jul 31, 2006. Check the license (Oregon MD20195, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Margaret Mary Hayes
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD20195 OR
Self-reported in NPPES; status is on the state search - Practice location
- 12360 E Burnside St, Portland, OR 97233
- Phone
- (971) 279-4800
- Enumerated
- Jul 31, 2006
- Record last updated
- Sep 18, 2025
- Fax
- (971) 279-2051
- Medicaid IDs
- 150542 OR
1034147 WA - Medicare enrollment
- Enrolled (PECOS I20081205000809); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 12360 E Burnside St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Almaguer, MAStudent in an Organized Health Care Education/Training Program1477007409
- Christa Andreasen, RNRegistered Nurse1013570548
- Alfredo Arano, PSSPeer Specialist1366125718
- Jennelle Bartholomew, QMHP-CMental Health Counselor1548836216
- Emerson Begay, CPHTPharmacy Technician1679046965
- Kristen Bell, CHWCommunity Health Worker1861344335
Verify Margaret Mary Hayes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD20195Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average family medicine physician in 2024
748 Medicare Part D claims for 64 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 30 claims were for opioids.
Most prescribed
- Lisinopril43 claims
- Losartan Potassium41 claims
- Atorvastatin Calcium31 claims
- Gabapentin26 claims
- Amlodipine Besylate24 claims
- Hydrochlorothiazide24 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.
Bills Medicare through one group practice
- Native American Rehabilitation Assoc IncPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Mary Hayes among 2,847 family medicine physician records in Oregon
Margaret Mary Hayes, MD is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1994 · median 2009 among the 1,671 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
561 family medicine physician records list a practice address in Portland
They are 561 of the 42,088 NPPES records with a practice address in Portland, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Susanne Bobenrieth, M.D.Portland, OR 972331871577742
- Anong Burke, MDPortland, OR 972331932205556
- Daniel Copp, MDPortland, OR 972331093903700
- Audrey Crist, MDPortland, OR 972331790888907
- Peter Hatcher, MDPortland, OR 972331356492979
- Lorissa Klaus, M.D.Portland, OR 972331831296979
- John Loomis, MDPortland, OR 972331487618781
- Rowena Manalo, M.D.Portland, OR 972331689776163
Common questions
What is Margaret Mary Hayes, MD's NPI number?
Margaret Mary Hayes, MD's National Provider Identifier (NPI) is 1437164951, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Mary Hayes, MD located?
The NPPES record lists a practice address at 12360 E Burnside St, Portland, OR, 97233. Phone: (971) 279-4800. Providers update this record themselves, so call before visiting.
How can I verify Margaret Mary Hayes, MD's license?
NPPES lists Oregon license number MD20195, 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 Margaret Mary Hayes, MD prescribe under Medicare Part D?
In 2024, Margaret Mary Hayes, MD had 748 Medicare Part D claims for 64 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.