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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DOUGLAS JOHNSTONE
NPI 1659378149
Internal Medicine - Nephrology in Indianapolis, IN

Active since June 30, 2005
1801 N SENATE BLVD, SUITE 355, INDIANAPOLIS, IN 46202(317) 924-8420(317) 924-8424 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Douglas Johnstone NPPES

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

DOUGLAS JOHNSTONE (NPI 1659378149) is an individual nephrology provider in Indianapolis, Indiana, licensed in Indiana (01023906) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1659378149
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDOUGLAS JOHNSTONE
Location Address1801 N SENATE BLVD, SUITE 355Indianapolis, IN 46202-1228
Mailing Address1801 N Senate Blvd, Suite 355Indianapolis, IN 46202-1228 · (317) 924-8420 · Fax (317) 924-8424
Phone(317) 924-8420
Fax(317) 924-8424
Sole ProprietorNo
Enumeration DateJune 30, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1659378149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in IN · 01023906
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.
1801 N SENATE BLVD, Indianapolis, IN 46202
Open in Google Maps ↗

Other Identifiers 1

Other000000083035IN · Anthem Number

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. DOMENICO CALCATERRA MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1801 N SENATE BLVD, STE 3300
INDIANAPOLIS, IN 46202
Marion County (317) 923-1787
JOHN THOMAS GRIPE M.D.
Anesthesiology
1801 N SENATE BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 577-4200
MORGAN LEIGH KINNEY NP
Nurse Practitioner (Gerontology)
1801 N SENATE BLVD, SUITE 635
INDIANAPOLIS, IN 46202
Marion County (317) 962-3235
OLAJIDE O ODELOWO MD
Internal Medicine (Gastroenterology)
1801 N SENATE BLVD, SUITE 400
INDIANAPOLIS, IN 46202
Marion County (317) 962-6300
DAVID NEIL BROWN MD
Internal Medicine (Gastroenterology)
1801 N SENATE BLVD, STE 400
INDIANAPOLIS, IN 46202
Marion County (317) 962-6300
BENJAMIN MICHAEL KLINE PA-C
Physician Assistant
1801 N SENATE BLVD, SUITE 535
INDIANAPOLIS, IN 46202
Marion County (317) 963-1950
DR. SAMUEL HOLLINGSWORTH M.D.
Internal Medicine
1801 N SENATE BLVD, STE 400
INDIANAPOLIS, IN 46202
Marion County (317) 962-5581
DR. ANDREW D NIGH MD
Surgery
1801 N SENATE BLVD, SUITE 635
INDIANAPOLIS, IN 46202
Marion County (317) 963-1453

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 Douglas Johnstone's NPI number?

The NPI number for Douglas Johnstone is 1659378149. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Where is Douglas Johnstone located?

Douglas Johnstone practices at 1801 N Senate Blvd Suite 355, Indianapolis, IN 46202. The listed phone number is (317) 924-8420.

What is Douglas Johnstone'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 Douglas Johnstone 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 33 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.