Dylan Ray Mathis, DO
Internal Medicine Physician · Grants Pass, OR
Dylan Ray Mathis, DO is an internal medicine physician with a practice address in Grants Pass, Oregon, and NPI 1922748102, issued on Mar 29, 2022. Check the license (Oregon DO226103, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Dylan Ray Mathis
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- DO226103 OR
1922748102 OR
PG210858 OR
Self-reported in NPPES; status is on the state search - Practice location
- 520 SW Ramsey Ave, Grants Pass, OR 97527
- Phone
- (541) 472-7810
- Enumerated
- Mar 29, 2022
- Record last updated
- Jul 2, 2025
- Medicaid ID
- PG210858 OR
- Medicare enrollment
- Enrolled (PECOS I20250804002869); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 520 SW Ramsey Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shannon Analla, MSN, FNP-CFamily Nurse Practitioner1619741196
- Monika Bowen, APRNFamily Nurse Practitioner1124484688
- Amy Brown, MDFamily Medicine Physician1750467312
- Zia Choudhury, MD, MPHFamily Medicine Physician1700316544
- Ronald Estes, PA-CMedical Physician Assistant1750313326
- Kelly FruthPhysician Assistant1730701285
Verify Dylan Ray Mathis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO226103Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
146 Medicare Part D claims for 36 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Losartan Potassium11 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
- Asante Physician PartnersGrants Pass, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dylan Ray Mathis among 2,116 internal medicine physician records in Oregon
Dylan Ray Mathis, DO 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 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2008 among the 1,232 with a school on file
- Record last updated2025 · 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).
35 internal medicine physician records list a practice address in Grants Pass
They are 35 of the 2,127 NPPES records with a practice address in Grants Pass, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Grants Pass → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Brandes, MDGrants Pass, OR 975271992700991
- John Countiss, M.D.Grants Pass, OR 975271144225921
- Edward Groenhout, M.D.Grants Pass, OR 975271760487557
- Haitham Haddad, M.D.Grants Pass, OR 975271922003714
- Dennis Minister, MDGrants Pass, OR 975271720193907
- Philip Murray, M.D.Grants Pass, OR 975271346245131
- Markus Opel, M.D.Grants Pass, OR 975271255336046
- Eric Perry, M.D.Grants Pass, OR 975271750387825
Common questions
What is Dylan Ray Mathis, DO's NPI number?
Dylan Ray Mathis, DO's National Provider Identifier (NPI) is 1922748102, issued on Mar 29, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Dylan Ray Mathis, DO located?
The NPPES record lists a practice address at 520 SW Ramsey Ave, Grants Pass, OR, 97527. Phone: (541) 472-7810. Providers update this record themselves, so call before visiting.
How can I verify Dylan Ray Mathis, DO's license?
NPPES lists Oregon license number DO226103, 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 Dylan Ray Mathis, DO prescribe under Medicare Part D?
In 2024, Dylan Ray Mathis, DO had 146 Medicare Part D claims for 36 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.