WILLIAM MYRON FERRIN MD - NPI 1568458156 - Internal Medicine in Oregon City, OR

Q: What is William Ferrin's NPI number?

The NPI number for William Ferrin is 1568458156. It was assigned to this individual provider in the NPPES registry on September 20, 2005.

Q: What is William Ferrin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for William Ferrin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

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About William Myron Ferrin Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM MYRON FERRIN MD (NPI 1568458156) is an individual gastroenterology provider in Oregon City, Oregon, licensed in Oregon (MD17742) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1568458156

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameWILLIAM MYRON FERRINCredential: MD

Location Address1508 DIVISION ST, STE 15Oregon City, OR 97045-1582

Mailing Address1508 Division St, Ste 15Oregon City, OR 97045-1582 · (503) 657-5555 · Fax (503) 657-6502

Phone(503) 657-5555

Fax(503) 657-6502

Sole ProprietorNo

Enumeration DateSeptember 20, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1568458156 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in OR · MD17742

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1508 DIVISION ST, Oregon City, OR 97045

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Other Identifiers 1

Medicaid043195OR

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MICHELE QUINN MD

Obstetrics & Gynecology

1508 DIVISION ST, SUITE 205
OREGON CITY, OR 97045

Clackamas County (503) 657-1071

DR. FREDERICK G SCHMIDT M.D.

Obstetrics & Gynecology (Obstetrics)

1508 DIVISION ST, SUITE 205
OREGON CITY, OR 97045

Clackamas County (503) 657-1071

CHUN-YANG MICHAEL CHANG MD

Internal Medicine (Gastroenterology)

1508 DIVISION ST, STE 15
OREGON CITY, OR 97045

Clackamas County (503) 692-3750

MICHAEL FRANK SHEFFIELD MD

Internal Medicine (Gastroenterology)

1508 DIVISION ST, STE 15
OREGON CITY, OR 97045

Clackamas County (503) 692-3750

MARNY LOUISE LAWSON CNM, NP

Advanced Practice Midwife

1508 DIVISION ST, STE 205
OREGON CITY, OR 97045

Clackamas County (503) 657-1071

MONINA FARRAH RAMOS PASCUA MD

Internal Medicine (Gastroenterology)

1508 DIVISION ST, STE 15
OREGON CITY, OR 97045

Clackamas County (503) 692-3750

ANNA MARIAN TUBMAN MD

Family Medicine

1508 DIVISION ST, SUITE 25, PLAZA 2
OREGON CITY, OR 97045

Clackamas County (503) 659-4988

GASTROENTEROLOGY SPECIALISTS OF OREGON PC

Internal Medicine (Gastroenterology)

1508 DIVISION ST, SUITE 15
OREGON CITY, OR 97045

Clackamas County (503) 657-5555

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Ferrin's NPI number?

The NPI number for William Ferrin is 1568458156. It was assigned to this individual provider in the NPPES registry on September 20, 2005.

Where is William Ferrin located?

William Ferrin practices at 1508 Division St Ste 15, Oregon City, OR 97045. The listed phone number is (503) 657-5555.

What is William Ferrin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for William Ferrin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.