Robert Michael Davis, M.D.
Occupational Medicine Physician · Portland, OR
Robert Michael Davis, M.D. is an occupational medicine physician with a practice address in Portland, Oregon, and NPI 1427150408, issued on Sep 1, 2006. Check the license (Oregon MD16517, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert Michael Davis
- Credential
- M.D.
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License numbers
- MD16517 OR
C 6701 AR
MD00032890 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3600 N Interstate Ave, Portland, OR 97227
- Phone
- (503) 285-9321
- Enumerated
- Sep 1, 2006
- Record last updated
- Feb 4, 2022
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 31 in Oregon → Look up another NPI →
Also registered at 3600 N Interstate Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shareen BakerOptician1851488373
- Christine Barnett, M.D.Hematology & Oncology Physician1679772743
- Lane Barton, MDPhysical Medicine & Rehabilitation Physician1114036746
Verify Robert Michael Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD16517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average occupational medicine physician in 2024
17 Medicare Part D claims, against an average of 794 among the 463 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $21.14
1 payment: food and beverage; the largest payer was TerSera Therapeutics LLC. The 193 providers of this specialty with any payment received $2,381.67 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.
Robert Michael Davis among 31 occupational medicine physician records in Oregon
Robert Michael Davis, M.D. is one of 31 occupational medicine physician records with a practice address in Oregon. 16% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 71% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileNo · 16% of these records are
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in Oregon
There are 31 occupational medicine physician records in Oregon.
All 31 in Oregon → Every provider in Portland → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Walaa Abdelmoaty, MDTigard, OR 972241033686704
- Kathy Chang, MD, MPHPortland, OR 972301043357742
- Husameddin El-Bakri, M.D.Tigard, OR 972241851660955
- James Harris, MDPortland, OR 972231477670263
- Ruvin Breen, M.D.Portland, OR 972331154434314
- Jock Pribnow, MD, MPHPortland, OR 972331184738130
- Kevin Loh, DOPortland, OR 972181437386281
- Raymond Larsen, M.D.Portland, OR 972171649398611
Common questions
What is Robert Michael Davis, M.D.'s NPI number?
Robert Michael Davis, M.D.'s National Provider Identifier (NPI) is 1427150408, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Michael Davis, M.D. located?
The NPPES record lists a practice address at 3600 N Interstate Ave, Portland, OR, 97227. Phone: (503) 285-9321. Providers update this record themselves, so call before visiting.
How can I verify Robert Michael Davis, M.D.'s license?
NPPES lists Oregon license number MD16517, 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 Robert Michael Davis, M.D. prescribe under Medicare Part D?
In 2024, Robert Michael Davis, M.D. had 17 Medicare Part D claims; the average among occupational medicine physician prescribers was 794. 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.