Marcus H. Cornwall, D.O.
Family Medicine Physician · Milwaukie, OR
Marcus H. Cornwall, D.O. is a family medicine physician with a practice address in Milwaukie, Oregon, and NPI 1689639841, issued on Apr 19, 2006. Check the license (Oregon DO23052, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marcus H. Cornwall
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DO23052 OR
Self-reported in NPPES; status is on the state search - Practice location
- 6975 SE Lake RD, Milwaukie, OR 97267
- Phone
- (503) 905-2526
- Enumerated
- Apr 19, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (503) 905-2545
- Medicare enrollment
- Enrolled (PECOS I20040406001157); may accept Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2000
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Verify Marcus H. Cornwall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO23052Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average family medicine physician in 2024
1,094 Medicare Part D claims for 84 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Atorvastatin Calcium93 claims
- Gabapentin45 claims
- Lisinopril44 claims
- Rosuvastatin Calcium43 claims
- Spironolactone35 claims
- Cyclobenzaprine Hcl29 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: $1,868.93
94 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Marcus H. Cornwall among 2,847 family medicine physician records in Oregon
Marcus H. Cornwall, 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 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
- Graduated2000 · median 2009 among the 1,671 with a school on file
- Record last updated2007 · 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).
50 family medicine physician records list a practice address in Milwaukie
They are 50 of the 1,998 NPPES records with a practice address in Milwaukie, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Milwaukie → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Randall Fryer, D.O.Milwaukie, OR 972671376599910
- Safina Koreishi, MDMilwaukie, OR 972671568626281
- Roberta Ruggeri, D.O.Milwaukie, OR 972671396735254
- John Stiger, D.O.Milwaukie, OR 972671659361517
- Miriam Agisim, MDPortland, OR 972661538506266
- Eric Ardman, MDPortland, OR 972661790312809
- Anthony BellsmithPortland, OR 972661427404243
- Jose Carrillo-Castro, MDPortland, OR 972661154173060
Common questions
What is Marcus H. Cornwall, D.O.'s NPI number?
Marcus H. Cornwall, D.O.'s National Provider Identifier (NPI) is 1689639841, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcus H. Cornwall, D.O. located?
The NPPES record lists a practice address at 6975 SE Lake RD, Milwaukie, OR, 97267. Phone: (503) 905-2526. Providers update this record themselves, so call before visiting.
How can I verify Marcus H. Cornwall, D.O.'s license?
NPPES lists Oregon license number DO23052, 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 Marcus H. Cornwall, D.O. prescribe under Medicare Part D?
In 2024, Marcus H. Cornwall, D.O. had 1,094 Medicare Part D claims for 84 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.