Dean Ryan Longfellow, PSY.D.
Clinical Psychologist · Sherwood, OR
Dean Ryan Longfellow, PSY.D. is a clinical psychologist with a practice address in Sherwood, Oregon, and NPI 1609918853, issued on Feb 13, 2007. Check the license (Oregon 988, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Dean Ryan Longfellow
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 988 OR
Self-reported in NPPES; status is on the state search - Practice location
- 16850 SW Gleneagle Dr, Sherwood, OR 97140
- Phone
- (503) 703-1222
- Enumerated
- Feb 13, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,143 in Oregon → Look up another NPI →
Verify Dean Ryan Longfellow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 988Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Dean Ryan Longfellow among 1,143 clinical psychologist records in Oregon
Dean Ryan Longfellow, PSY.D. is one of 1,143 clinical psychologist records with a practice address in Oregon. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 55% newer
- In a Medicare fileNo · 16% of these records are
- In the CMS Doctors and Clinicians fileNo · 25% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 clinical psychologist records list a practice address in Sherwood
They are 6 of the 300 NPPES records with a practice address in Sherwood, and 1,143 clinical psychologist records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,143 in Oregon → Every provider in Sherwood → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Breanna Barr, PSY.DSherwood, OR 971401073855847
- Jacqueline Head, PSY.D. PCSherwood, OR 971401639153125
- William James, PSY.D.Sherwood, OR 971401760616056
- Joshua Morris, PH.D.Sherwood, OR 971401093327140
- Amy Schlapper, PSY.D.Sherwood, OR 971401558908574
- Colin Bosma, PHDNewberg, OR 971321851060446
- Shaun Davis, PSYDNewberg, OR 971321699240184
- Brent Fisk, PSYDNewberg, OR 971321124418561
Common questions
What is Dean Ryan Longfellow, PSY.D.'s NPI number?
Dean Ryan Longfellow, PSY.D.'s National Provider Identifier (NPI) is 1609918853, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Dean Ryan Longfellow, PSY.D. located?
The NPPES record lists a practice address at 16850 SW Gleneagle Dr, Sherwood, OR, 97140. Phone: (503) 703-1222. Providers update this record themselves, so call before visiting.
How can I verify Dean Ryan Longfellow, PSY.D.'s license?
NPPES lists Oregon license number 988, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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. 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.