1. Home
  2. Directory
  3. Oregon
  4. Portland
  5. Internal Medicine
  6. NPI Profile

MICHAEL H WALCZYK MD
NPI 1871562892
Internal Medicine - Nephrology in Portland, OR

Active since March 14, 2006
1130 NW 22ND AVE STE 400, PORTLAND, OR 97210(503) 413-6722(503) 413-6563 Get Directions Write a Review

NPPES record last updated: January 14, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Michael H Walczyk Md NPPES

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

MICHAEL H WALCZYK MD (NPI 1871562892) is an individual nephrology provider in Portland, Oregon, licensed in Oregon (13217) and active in the NPI registry since March 2006. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1871562892
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameMICHAEL H WALCZYKCredential: MD
Location Address1130 NW 22ND AVE STE 400Portland, OR 97210-2971
Mailing AddressPo Box 4037Portland, OR 97208-4037 · (503) 413-4048 · Fax (503) 413-2910
Phone(503) 413-6722
Fax(503) 413-6563
Sole ProprietorNo
Enumeration DateMarch 14, 2006
Last NPPES UpdateJanuary 14, 2020
✔ NPI 1871562892 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in OR · 13217✔ Licensed in HI · MD19676✔ Licensed in WA · 23874
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1130 NW 22ND AVE STE 400, Portland, OR 97210
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11130 NW 22nd Ave Ste 640Portland, OR 97210-2993 · Phone (503) 229-7976 · Fax (503) 274-4867
Location 275 Puuhonu Pl Ste 100Hilo, HI 96720-2000 · Phone (808) 935-8647 · Fax (808) 935-9783

Other Identifiers 2

Medicaid1029586WA
Medicaid147116OR

Other Providers at the Same Location NPPES 3

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

JULIA E TANK MD
Internal Medicine (Nephrology)
1130 NW 22ND AVE STE 400
PORTLAND, OR 97210
Multnomah County (503) 413-6722
JEFF CHAMBERLAIN PHARM D
Pharmacist
1130 NW 22ND AVE STE 400
PORTLAND, OR 97210
Multnomah County (503) 413-6555
MONICA ROGOZ PHARMD
Pharmacist
1130 NW 22ND AVE STE 400
PORTLAND, OR 97210
Multnomah County (503) 413-6555

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 Michael Walczyk's NPI number?

The NPI number for Michael Walczyk is 1871562892. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Michael Walczyk located?

Michael Walczyk practices at 1130 NW 22nd Ave Ste 400, Portland, OR 97210. The listed phone number is (503) 413-6722.

What is Michael Walczyk's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

When was this NPI record last updated?

The NPPES record for Michael Walczyk was last updated on January 14, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.