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

KATHY J HELZLSOUER MD
NPI 1982645875
Internal Medicine - Medical Oncology in Baltimore, MD

Q: What is Kathy Helzlsouer's NPI number?

The NPI number for Kathy Helzlsouer is 1982645875. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Q: What is Kathy Helzlsouer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Kathy Helzlsouer 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 34 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.

Active since June 09, 2006

227 SAINT PAUL PL, 6TH FLOOR, BALTIMORE, MD 21202(410) 951-7950(410) 951-7931 Get Directions Write a Review

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

On this page

About Kathy J Helzlsouer Md NPPES

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

KATHY J HELZLSOUER MD (NPI 1982645875) is an individual medical oncology provider in Baltimore, Maryland, licensed in Maryland (D0028685) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1982645875

Entity TypeIndividualFemale

Primary Taxonomy207RX0202X

Provider Legal NameKATHY J HELZLSOUERCredential: MD

Location Address227 SAINT PAUL PL, 6TH FLOORBaltimore, MD 21202-2001

Mailing AddressPo Box 64075Baltimore, MD 21264-4075

Phone(410) 951-7950

Fax(410) 951-7931

Sole ProprietorNo

Enumeration DateJune 9, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1982645875 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in MD · D0028685

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

227 SAINT PAUL PL, Baltimore, MD 21202

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Other Identifiers 2

OtherKT93 / 642222-01MD · Bc / Bs Of Md

OtherS186 / 0076MD · Bluechoice

Other Providers at the Same Location NPPES 16

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

MS. SUSAN ELIZABETH APPLING CRNP

Nurse Practitioner (Adult Health)

227 SAINT PAUL PL, WEINBERG 6TH FLOOR
BALTIMORE, MD 21202

Baltimore City (410) 951-7952

MRS. SONJA MELISSA ALEXANDER CRNP

Nurse Practitioner (Family)

227 SAINT PAUL PL
BALTIMORE, MD 21202

Baltimore City (410) 332-9205

MARIA JACOBS MD

Radiology (Radiation Oncology)

227 SAINT PAUL PL, LOWER LEVEL
BALTIMORE, MD 21202

Baltimore City (410) 332-9055

NEIL B ROSENSHEIN MD

Obstetrics & Gynecology (Gynecologic Oncology)

227 SAINT PAUL PL, 6TH FLOOR
BALTIMORE, MD 21202

Baltimore City (410) 332-9002

ERROL H RUSHOVICH MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

227 SAINT PAUL PL, 5TH FLOOR
BALTIMORE, MD 21202

Baltimore City (410) 332-9258

JEAN M WAINSTOCK CRNP

Nurse Practitioner (Family)

227 SAINT PAUL PL, 5TH FLOOR
BALTIMORE, MD 21202

Baltimore City (410) 332-9330

GAURI C BEDI MD

Surgery

227 SAINT PAUL PL, 5TH FLOOR
BALTIMORE, MD 21202

Baltimore City (410) 332-9330

SAINT PAUL PLACE SPECIALISTS, INC.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

227 SAINT PAUL PL, 5TH FLOOR
BALTIMORE, MD 21202

Baltimore City (410) 332-9258

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 Kathy Helzlsouer's NPI number?

The NPI number for Kathy Helzlsouer is 1982645875. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Where is Kathy Helzlsouer located?

Kathy Helzlsouer practices at 227 Saint Paul Pl 6th Floor, Baltimore, MD 21202. The listed phone number is (410) 951-7950.

What is Kathy Helzlsouer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

When was this NPI record last updated?

The NPPES record for Kathy Helzlsouer 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 34 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.