DR. DAVID K KLASSEN M.D.
NPI 1285672147
Internal Medicine - Nephrology in Baltimore, MD

Active since June 03, 2006
22 S GREENE ST, BALTIMORE, MD 21201(410) 328-5720(410) 328-5685 Get Directions Write a Review

NPPES record last updated: November 16, 2010. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. David K Klassen M.d. NPPES

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

DR. DAVID K KLASSEN M.D. (NPI 1285672147) is an individual nephrology provider in Baltimore, Maryland, licensed in Maryland (D30575) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1285672147
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. DAVID K KLASSENCredential: M.D.
Location Address22 S GREENE STBaltimore, MD 21201-1544
Mailing AddressPo Box 64442Baltimore, MD 21264-4442 · (410) 328-5720 · Fax (410) 328-5685
Fax(410) 328-5685
Sole ProprietorNo
Enumeration DateJune 3, 2006
Last NPPES UpdateNovember 16, 2010
NPI 1285672147 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 MD · D30575
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.

22 S GREENE ST, Baltimore, MD 21201

Other Identifiers 8

Medicaid034371800DC
Medicare PIN110036730MD
Medicare PINS015I334MD
Medicare UPINC49243
Medicaid1285672147DE
Medicaid8183406NJ
Medicaid0191845000WV
Medicaid350681900MD

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.

Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, MEDICINE, N3E09
BALTIMORE, MD 21201
Physician Assistant (Medical)
22 S GREENE ST, G2K36
BALTIMORE, MD 21201
Pediatrics (Adolescent Medicine)
22 S GREENE ST
BALTIMORE, MD 21201
Nurse Practitioner (Acute Care)
22 S GREENE ST, SUITE S4D07
BALTIMORE, MD 21201
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, N3E09
BALTIMORE, MD 21201
Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Internal Medicine
22 S GREENE ST, N3E09
BALTIMORE, MD 21201

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 David Klassen's NPI number?

The NPI number for David Klassen is 1285672147. It was assigned to this individual provider in the NPPES registry on June 3, 2006.

Where is David Klassen located?

David Klassen practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-5720.

What is David Klassen'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 David Klassen was last updated on November 16, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.