Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jadwiga Julia Close, M.D.

Hospitalist Physician in Newport Beach, CA · enumerated 2007.

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

National Provider Identifier

1053595876

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Registry record

Entity type Individual (Type 1)

Name Jadwiga Julia Close

Credential M.D.

Sex Female

Practice address Newport Beach, CA, 92663

Phone (949) 610-7245

Fax (657) 241-7720

Enumeration date Dec 28, 2007

Last updated in NPPES May 26, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A99438 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A99438 (CA) 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
P00780216	Other	CA	MEDICARE RAIL ROAD

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 Jadwiga Close?

The National Provider Identifier (NPI) for Jadwiga Close is 1053595876, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jadwiga Close practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-26.