Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Rider Hess, M.D.

Q: What is the NPI number for John Hess?

The National Provider Identifier (NPI) for John Hess is 1770575078, a Type 1 (individual) record in the CMS NPPES registry.

Blood Banking & Transfusion Medicine Physician in Seattle, WA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770575078

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Registry record

Entity type Individual (Type 1)

Name Dr. John Rider Hess

Credential M.D.

Sex Male

Practice address 325 9th Ave, Seattle, WA, 98104

Phone (206) 543-6420

Enumeration date Aug 22, 2005

Last updated in NPPES Apr 26, 2016

Taxonomy & licenses

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License MD00015060 (WA) Secondary

207ZB0001X Blood Banking & Transfusion Medicine Physician Allopathic & Osteopathic Physicians · License MD00015060 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
207ZB0001X	Other	WA	PATHOLOGY - BLOOD BANKING & TRANSFUSION MEDICINE WA MD00015060
1770575078	Medicaid	WA	-
207ZP0105X	Other	WA	PATHOLOGY - CLINICAL PATHOLOGY/LABORATORY MEDICINE WA MD00015060

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for John Hess?

The National Provider Identifier (NPI) for John Hess is 1770575078, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Hess practice?

The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Michael Schrift Geriatric Psychiatry Physician · Seattle, WA NPI 1275530990 Heather Ferguson Pharmacist · Seattle, WA NPI 1124027578 Cynthia Chua Hematology & Oncology Physician · Seattle, WA NPI 1700879582 Elizabeth Borock Emergency Medicine Physician · Seattle, WA NPI 1841283512 Suzinne Pak Gorstein Pediatric Adolescent Medicine Physician · Seattle, WA NPI 1215922638 Joanna Blondeau Certified Registered Nurse Anesthetist · Seattle, WA NPI 1417943341 Michael Kelly Nephrology Physician · Seattle, WA NPI 1013903780 Steven Riddle Pharmacotherapy Pharmacist · Seattle, WA NPI 1730176058

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-26.