NPPES file of Aug 9, 2026

Marie Louise Dhulst, MD

Internal Medicine Physician · Portland, OR

Marie Louise Dhulst, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1093882789, issued on Nov 29, 2006. Check the license (Oregon MD20104, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093882789
Name
Marie Louise Dhulst
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD20104 OR
Self-reported in NPPES; status is on the state search
Practice location
800 SW 13TH Ave, Portland, OR 97205
Phone
(503) 221-0161
Enumerated
Nov 29, 2006
Record last updated
Nov 6, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(503) 274-1697
Medicaid ID
151346 OR
Medicare enrollment
Enrolled (PECOS I20110110000158); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1995
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 800 SW 13TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ronald Allen, D.O.Ophthalmology Physician1376516294
  2. Katelyn BoelPharmacist1598248072
  3. Matthew Bookwalter, DPMPodiatrist1285705038
  4. Alexander Bulochnik Shteynberg, PHARM.D., MBAAmbulatory Care Pharmacist1265936058
  5. Young Choi, M.D.Gastroenterology Physician1336122274
  6. Jeffrey Cleven, MDInternal Medicine Physician1144312323

Verify Marie Louise Dhulst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD20104
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average internal medicine physician in 2024

383 Medicare Part D claims for 276 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Marie Louise Dhulst383
  2. Specialty average3,176

Most prescribed

  1. Amoxicillin-Clavulanate Potass43 claims
  2. Prednisone40 claims
  3. Azithromycin36 claims
  4. Doxycycline Hyclate33 claims
  5. Nitrofurantoin Mono-Macro21 claims
  6. Ciprofloxacin Hcl15 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

  1. Portland ClinicPortland, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marie Louise Dhulst among 2,116 internal medicine physician records in Oregon

Marie Louise Dhulst, MD 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 54% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1995 · median 2008 among the 1,232 with a school on file
  • Record last updated2020 · 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).

889 internal medicine physician records list a practice address in Portland

They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jeffrey Cleven, MDPortland, OR 972051144312323
  2. Clifford Cooper, MDPortland, OR 972051093806572
  3. Joseph Deng, M.D.Portland, OR 972051700099223
  4. Gary Ericson, MDPortland, OR 972051992897177
  5. Ryan Hutchison, M.D.Portland, OR 972051427062595
  6. Burton Lazar, MDPortland, OR 972051407948672
  7. Cristina Fe Mondragon, M.D.Portland, OR 972051235129891
  8. Jon Morton, MDPortland, OR 972051598837197

Common questions

What is Marie Louise Dhulst, MD's NPI number?

Marie Louise Dhulst, MD's National Provider Identifier (NPI) is 1093882789, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marie Louise Dhulst, MD located?

The NPPES record lists a practice address at 800 SW 13TH Ave, Portland, OR, 97205. Phone: (503) 221-0161. Providers update this record themselves, so call before visiting.

How can I verify Marie Louise Dhulst, MD's license?

NPPES lists Oregon license number MD20104, 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 Marie Louise Dhulst, MD prescribe under Medicare Part D?

In 2024, Marie Louise Dhulst, MD had 383 Medicare Part D claims for 276 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.