Warren Keyser, MD
NPI 1720607088 · Psychiatry Physician · Woodburn, OR
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Keyser, MD is a Psychiatry Physician provider in Woodburn, OR (NPI 1720607088).
Provider details
- NPI number
- 1720607088
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD219000 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Duloxetine Hcl | 23 |
| Mirtazapine | 18 |
| Trazodone Hcl | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 3600 Nw Samaritan DrCorvallis, OR 97330-3737Phone: (541) 768-4906
Registry dates
- Enumerated
- 2020-04-15
- Last updated
- 2026-04-17
- Certified
- 2026-04-17
Frequently asked questions
- What is Warren Keyser's NPI number?
- Warren Keyser's National Provider Identifier (NPI) is 1720607088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Keyser's specialty?
- Warren Keyser is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Keyser located?
- Warren Keyser's practice location on file with NPPES is 1475 Mount Hood Ave Ste 160, Woodburn, OR 97071-9263.
- What is Warren Keyser's phone number?
- The practice phone number listed in the NPPES registry for Warren Keyser is (971) 983-5214.
- Does Warren Keyser accept Medicare?
- Warren Keyser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Keyser's NPI active?
- Yes — Warren Keyser's NPI (1720607088) is active in the NPPES registry as of the last update on 2026-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.