Brittany Mastin, D.O.
Family Medicine Physician · Portland, OR
Brittany Mastin, D.O. is a family medicine physician with a practice address in Portland, Oregon, and NPI 1457713984, issued on Mar 23, 2016. Check the license (Oregon DO194233, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brittany Mastin
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DO194233 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1700 NE 102ND Ave, Portland, OR 97220
- Phone
- (800) 813-2000
- Enumerated
- Mar 23, 2016
- Record last updated
- Dec 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20191204002300); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 1700 NE 102ND Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Anderson, M.D.Pediatrics Physician1790974038
- Kristen Bender, NPNurse Practitioner1851023451
- Katherine Clayton, MDPediatrics Physician1952544637
- Christina Dale, RPHPharmacist1205385804
- Heidi Ferguson, MDFamily Medicine Physician1306810858
- Kathryn Glassberg, MDInternal Medicine Physician1821274069
Verify Brittany Mastin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO194233Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average family medicine physician in 2024
2,601 Medicare Part D claims for 313 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. 121 claims were for opioids.
Most prescribed
- Atorvastatin Calcium248 claims
- Levothyroxine Sodium119 claims
- Lisinopril116 claims
- Amlodipine Besylate105 claims
- Losartan Potassium93 claims
- Albuterol Sulfate Hfa82 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
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brittany Mastin among 2,847 family medicine physician records in Oregon
Brittany Mastin, D.O. 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · 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
- Heather Beecher, MDPortland, OR 972201558307546
- Rima Chamie, MDPortland, OR 972201316993801
- Jodi Demunter, MDPortland, OR 972201780614727
- Heidi Ferguson, MDPortland, OR 972201306810858
- Thomas Henry, MDPortland, OR 972201427029321
- Keith Kale, D.O.Portland, OR 972201043254378
- Thomas Kasten, M.D.Portland, OR 972201861467805
- Kristin Kocher, MDPortland, OR 972201629004155
Common questions
What is Brittany Mastin, D.O.'s NPI number?
Brittany Mastin, D.O.'s National Provider Identifier (NPI) is 1457713984, issued on Mar 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Brittany Mastin, D.O. located?
The NPPES record lists a practice address at 1700 NE 102ND Ave, Portland, OR, 97220. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Brittany Mastin, D.O.'s license?
NPPES lists Oregon license number DO194233, 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 Brittany Mastin, D.O. prescribe under Medicare Part D?
In 2024, Brittany Mastin, D.O. had 2,601 Medicare Part D claims for 313 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.