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Clifford Melnyk, MD
NPI 1811902331 · Gastroenterology Physician · Portland, OR
Clifford Melnyk, MD is a Gastroenterology Physician provider in Portland, OR (NPI 1811902331).
Provider details
- NPI number
- 1811902331
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD06928 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
3181 Sw Sam Jackson Park Rd
Portland, OR 97239-3011
Phone: (503) 494-8577
Street-level locationGet directions
Mailing address
4920 Sw Windsor Ct
Portland, OR 97221-2136
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Clifford Melnyk's NPI number?
- Clifford Melnyk's National Provider Identifier (NPI) is 1811902331, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clifford Melnyk's specialty?
- Clifford Melnyk is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Clifford Melnyk located?
- Clifford Melnyk's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3011.
- What is Clifford Melnyk's phone number?
- The practice phone number listed in the NPPES registry for Clifford Melnyk is (503) 494-8577.
- Is Clifford Melnyk's NPI active?
- Yes — Clifford Melnyk's NPI (1811902331) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.