Gene De Haan, M.D.
Obstetrics & Gynecology Physician · Portland, OR
Gene De Haan, M.D. is an obstetrics & gynecology physician with a practice address in Portland, Oregon, and NPI 1538587654, issued on Apr 4, 2014. Check the license (Oregon 167936, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gene De Haan
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 167936 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3350 N Interstate Ave, Portland, OR 97227
- Phone
- (503) 331-6011
- Enumerated
- Apr 4, 2014
- Record last updated
- May 31, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (503) 331-6025
- Medicare enrollment
- Enrolled (PECOS I20181212002202); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 654 in Oregon → Look up another NPI →
Verify Gene De Haan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 167936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
64 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol11 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
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gene De Haan among 654 obstetrics & gynecology physician records in Oregon
Gene De Haan, M.D. is one of 654 obstetrics & gynecology 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 2014, is newer than 81% of them.
- NPI issued2014 · 81% of these records are older, 17% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2007 among the 413 with a school on file
- Record last updated2018 · 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 207V00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Oregon
There are 654 obstetrics & gynecology physician records in Oregon.
All 654 in Oregon → Every provider in Portland → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Dalika Crawford, MDPortland, OR 972271508972597
- Debra Dillon, MDPortland, OR 972271598739385
- Kenneth Jacobs, M.D.Portland, OR 972271417055518
- Brenda Kehoe, MDPortland, OR 972271770599128
- Sik Kim, MDPortland, OR 972271891757043
- Petr Miksovsky, M.D.Portland, OR 972271285647735
- Lisa Molina, MDPortland, OR 972271376634931
- Duncan Neilson, MDPortland, OR 972271386607414
Common questions
What is Gene De Haan, M.D.'s NPI number?
Gene De Haan, M.D.'s National Provider Identifier (NPI) is 1538587654, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Gene De Haan, M.D. located?
The NPPES record lists a practice address at 3350 N Interstate Ave, Portland, OR, 97227. Phone: (503) 331-6011. Providers update this record themselves, so call before visiting.
How can I verify Gene De Haan, M.D.'s license?
NPPES lists Oregon license number 167936, 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 Gene De Haan, M.D. prescribe under Medicare Part D?
In 2024, Gene De Haan, M.D. had 64 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.