Milton Charles Johnson, M.D.
Gastroenterology Physician · Portland, OR
Milton Charles Johnson, M.D. is a gastroenterology physician with a practice address in Portland, Oregon, and NPI 1811907306, issued on Aug 8, 2006. Check the license (Oregon CP204575, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Milton Charles Johnson
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- CP204575 OR
ME65674 FL
76094 WI
Self-reported in NPPES; status is on the state search - Practice location
- 10000 SE Main St Ste 112, Portland, OR 97216
- Phone
- (503) 255-3054
- Enumerated
- Aug 8, 2006
- Record last updated
- Sep 10, 2024
- Fax
- (503) 255-7651
- Medicaid IDs
- 100181212 WI
010351500 FL - Medicare enrollment
- Enrolled (PECOS I20220419002611); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 281 in Oregon → Look up another NPI →
Also registered at 10000 SE Main St Ste 112
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Brandes, MDGastroenterology Physician1750420766
- Ginger Degravelle, MDGastroenterology Physician1205362944
- Victor Fishman, MDGastroenterology Physician1093754285
- Justin Lewis, M.D.Gastroenterology Physician1831621929
- Michael Owens, MDGastroenterology Physician1154327716
- Laura Pestana, DOGastroenterology Physician1588002521
Verify Milton Charles Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license CP204575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average gastroenterology physician in 2024
77 Medicare Part D claims for 75 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Peg-3350 And Electrolytes41 claims
- Gavilyte-G15 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
- Aurora Medical Group, Inc.Oshkosh, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Milton Charles Johnson among 281 gastroenterology physician records in Oregon
Milton Charles Johnson, M.D. is one of 281 gastroenterology physician records with a practice address in Oregon. 79% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1986 · median 2003 among the 201 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Oregon
There are 281 gastroenterology physician records in Oregon.
All 281 in Oregon → Every provider in Portland → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Richard Brandes, MDPortland, OR 972161750420766
- Ginger Degravelle, MDPortland, OR 972161205362944
- Victor Fishman, MDPortland, OR 972161093754285
- Justin Lewis, M.D.Portland, OR 972161831621929
- Michael Owens, MDPortland, OR 972161154327716
- Laura Pestana, DOPortland, OR 972161588002521
- Dirk Van Leeuwen, M.D., PH.D., FAASLDPortland, OR 972161205941309
- Myron Lezak, MDPortland, OR 972191487654992
Common questions
What is Milton Charles Johnson, M.D.'s NPI number?
Milton Charles Johnson, M.D.'s National Provider Identifier (NPI) is 1811907306, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Milton Charles Johnson, M.D. located?
The NPPES record lists a practice address at 10000 SE Main St Ste 112, Portland, OR, 97216. Phone: (503) 255-3054. Providers update this record themselves, so call before visiting.
How can I verify Milton Charles Johnson, M.D.'s license?
NPPES lists Oregon license number CP204575, 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 Milton Charles Johnson, M.D. prescribe under Medicare Part D?
In 2024, Milton Charles Johnson, M.D. had 77 Medicare Part D claims for 75 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.