Kenneth David Holladay, M.D.
Child & Adolescent Psychiatry Physician · Portland, OR
Kenneth David Holladay, M.D. is a child & adolescent psychiatry physician with a practice address in Portland, Oregon, and NPI 1275628380, issued on Oct 4, 2006. Check the license (Oregon 156792, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kenneth David Holladay
- Credential
- M.D.
- Primary taxonomy
- Child & Adolescent Psychiatry Physician 2084P0804X
- License number
- 156792 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9830 NE Cascades Pkwy, Portland, OR 97220
- Phone
- (503) 239-8101
- Enumerated
- Oct 4, 2006
- Record last updated
- Feb 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid IDs
- MD24422 AK
MH9931 AK - Entity
- Type 1 · individual
8 nearest child & adolescent psychiatry physician records → All 120 in Oregon → Look up another NPI →
Also registered at 9830 NE Cascades Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Odessa AdamsSocial Worker1558648485
- Kyle BargmannSocial Worker1366867368
- Sandra CisnerosCase Manager/Care Coordinator1053673343
- Carol ColeMental Health Counselor1760764096
- Danielle DierkingMental Health Counselor1194122911
- Melissa DowellSocial Worker1326306200
Verify Kenneth David Holladay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 156792Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024
54 Medicare Part D claims, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D.
Most prescribed
- Vilazodone Hcl11 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.
Kenneth David Holladay among 120 child & adolescent psychiatry physician records in Oregon
Kenneth David Holladay, M.D. is one of 120 child & adolescent psychiatry physician records with a practice address in Oregon. 43% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 60% newer
- In a Medicare fileYes · 43% of these records are
- In the CMS Doctors and Clinicians fileNo · 21% of these records are
- Record last updated2013 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Child & Adolescent Psychiatry Physician providers in Oregon
There are 120 child & adolescent psychiatry physician records in Oregon.
All 120 in Oregon → Every provider in Portland → Child & Adolescent Psychiatry Physician nationwide →
The 8 child & adolescent psychiatry physician records with the nearest ZIP codes
- Daina Ngugi, DOPortland, OR 972201356788376
- Marvin Rosen, M.D.Portland, OR 972201881602985
- Amy Ruth, M.D.Portland, OR 972201265657159
- Ervin Stubbs, M.D.Portland, OR 972191235446303
- Douglas Dicharry, MDPortland, OR 972221326112426
- Larry Mak, M.D.Portland, OR 972171093925380
- Lance Turner, M.D.Tigard, OR 972231881776847
- Terry Crombie, MDPortland, OR 972251992719231
Common questions
What is Kenneth David Holladay, M.D.'s NPI number?
Kenneth David Holladay, M.D.'s National Provider Identifier (NPI) is 1275628380, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth David Holladay, M.D. located?
The NPPES record lists a practice address at 9830 NE Cascades Pkwy, Portland, OR, 97220. Phone: (503) 239-8101. Providers update this record themselves, so call before visiting.
How can I verify Kenneth David Holladay, M.D.'s license?
NPPES lists Oregon license number 156792, 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 Kenneth David Holladay, M.D. prescribe under Medicare Part D?
In 2024, Kenneth David Holladay, M.D. had 54 Medicare Part D claims; the average among child & adolescent psychiatry physician prescribers was 504. 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.