William Ferrin, MD
NPI 1568458156 · Gastroenterology Physician · Oregon City, OR
William Ferrin, MD is a Gastroenterology Physician provider in Oregon City, OR (NPI 1568458156).
Provider details
- NPI number
- 1568458156
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- MD17742 (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
20 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
Mailing address
Registry dates
- Enumerated
- 2005-09-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Ferrin's NPI number?
- William Ferrin's National Provider Identifier (NPI) is 1568458156, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ferrin's specialty?
- William Ferrin is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is William Ferrin located?
- William Ferrin's practice location on file with NPPES is 1508 Division St, Oregon City, OR 97045-1582.
- What is William Ferrin's phone number?
- The practice phone number listed in the NPPES registry for William Ferrin is (503) 657-5555.
- Is William Ferrin's NPI active?
- Yes — William Ferrin's NPI (1568458156) 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.