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

WILLIAM ROBERT JAHNKE II MD
NPI 1013974336
Internal Medicine - Nephrology in St Paul, MN

Q: What is William Jahnke's NPI number?

The NPI number for William Jahnke is 1013974336. It was assigned to this individual provider in the NPPES registry on April 28, 2006.

Q: What is William Jahnke's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Jahnke 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 30 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 April 28, 2006

360 SHERMAN ST, STE 250, ST PAUL, MN 55102(651) 772-6251(651) 224-9661 Get Directions Write a Review

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

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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About William Robert Jahnke Ii Md NPPES

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

WILLIAM ROBERT JAHNKE II MD (NPI 1013974336) is an individual nephrology provider in St Paul, Minnesota, licensed in Minnesota (25020) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1013974336

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameWILLIAM ROBERT JAHNKE IICredential: MD

Location Address360 SHERMAN ST, STE 250St Paul, MN 55102-2594

Mailing Address1959 Sloan Place, Ste 200St Paul, MN 55117-2074 · (651) 772-6251 · Fax (651) 224-9661

Phone(651) 772-6251

Fax(651) 224-9661

Sole ProprietorNo

Enumeration DateApril 28, 2006

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1013974336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in MN · 25020

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License 25020 (MN)

360 SHERMAN ST, St Paul, MN 55102

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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.

MICHAEL HOWARD WIPF M.D.

Urology

360 SHERMAN ST, SUITE 400
SAINT PAUL, MN 55102

Ramsey County (651) 999-6800

MR. DREW NELSON LPCC, LADC

Counselor (Mental Health)

360 SHERMAN ST
SAINT PAUL, MN 55102

Ramsey County (651) 707-6968

MINNESOTA SPINE REHAB, INC

Clinic/Center (Occupational Medicine)

360 SHERMAN ST, SUITE 470
SAINT PAUL, MN 55102

Ramsey County (651) 209-6520

JILL PRINSEN CP

Prosthetist

360 SHERMAN ST, SUITE 299
SAINT PAUL, MN 55102

Ramsey County (651) 291-9000

DR. FRANCES S GO MD

Psychiatry & Neurology (Psychiatry)

360 SHERMAN ST, SUITE 100
SAINT PAUL, MN 55102

Ramsey County (651) 241-5959

GABRIELLE MAUREEN BATY PA-C

Physician Assistant

360 SHERMAN ST, SUITE 400
SAINT PAUL, MN 55102

Ramsey County (651) 999-6800

CAPITOL NEUROLOGY PA

Psychiatry & Neurology (Neurology)

360 SHERMAN ST, SUITE #350
SAINT PAUL, MN 55102

Ramsey County (651) 291-1559

CHARLES A GILL MD

Psychiatry & Neurology (Psychiatry)

360 SHERMAN ST, #100
SAINT PAUL, MN 55102

Ramsey County (651) 241-5959

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 Jahnke's NPI number?

The NPI number for William Jahnke is 1013974336. It was assigned to this individual provider in the NPPES registry on April 28, 2006.

Where is William Jahnke located?

William Jahnke practices at 360 Sherman St Ste 250, St Paul, MN 55102. The listed phone number is (651) 772-6251.

What is William Jahnke'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 William Jahnke 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 30 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.