1. Home
  2. Directory
  3. Washington
  4. Seattle
  5. Internal Medicine
  6. NPI Profile

JACK WOLFE SINGER MD
NPI 1750448940
Internal Medicine - Hematology & Oncology in Seattle, WA

Active since January 03, 2007
HARBORVIEW MEDICAL CENTER, 325 9TH AVE, SEATTLE, WA 98104(206) 731-3000 Get Directions Write a Review

NPPES record last updated: March 10, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Jack Wolfe Singer Md NPPES

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

JACK WOLFE SINGER MD (NPI 1750448940) is an individual hematology & oncology provider in Seattle, Washington, licensed in Washington (MD00012718) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1750448940
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameJACK WOLFE SINGERCredential: MD
Location AddressHARBORVIEW MEDICAL CENTER, 325 9TH AVESeattle, WA 98104
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 543-6420
Phone(206) 731-3000
Sole ProprietorNo
Enumeration DateJanuary 3, 2007
Last NPPES UpdateMarch 10, 2009
✔ NPI 1750448940 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in WA · MD00012718
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
HARBORVIEW MEDICAL CENTER, Seattle, WA 98104
Open in Google Maps ↗

Other Identifiers 5

Other0059Internal Id-motor Vehicle Id
Medicare UPINA55203
Medicaid1802107WA
Medicare PIN8859502WA
Medicare ID-Type Unspecified8857128

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.

ROBERT PAUL DUNBAR JR.
Orthopaedic Surgery (Orthopaedic Trauma)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3462
J RICHARD GOSS MD
Internal Medicine
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3000
MICHAEL WARREN SCHWARTZ
Internal Medicine (Endocrinology, Diabetes & Metabolism)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3241
RICHARD A ZAGER M.D.
Internal Medicine
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3000
W T LONGSTRETH JR.
Psychiatry & Neurology (Neurology)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3992
CAROL L METCALF
Nurse Practitioner
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3059
ROCHELLE L GARCIA
Pathology (Cytopathology)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3145
DAVID BRANCH ROWLETT III
Psychiatry & Neurology (Psychiatry)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 744-5846

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 Jack Singer's NPI number?

The NPI number for Jack Singer is 1750448940. It was assigned to this individual provider in the NPPES registry on January 3, 2007.

Where is Jack Singer located?

Jack Singer practices at Harborview Medical Center 325 9th Ave, Seattle, WA 98104. The listed phone number is (206) 731-3000.

What is Jack Singer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Jack Singer was last updated on March 10, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.