Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Howard Sondheimer, MD

Nephrology Physician in Detroit, MI · enumerated 2006.

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

National Provider Identifier

1992745897

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Registry record

Entity type Individual (Type 1)

Name James Howard Sondheimer

Credential MD

Sex Male

Practice address 4160 John R, Suite 917, Detroit, MI, 48201

Phone (313) 745-4525

Fax (313) 745-0011

Enumeration date Jun 8, 2006

Last updated in NPPES Mar 1, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301046362 (MI) Secondary

207RH0005X Hypertension Specialist Physician Allopathic & Osteopathic Physicians · License 4301046362 (MI) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 4301046362 (MI) 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
0H24844008	Other	MI	INDIV MEDICARE #

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

Where does James Sondheimer practice?

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

What is the NPI number for James Sondheimer?

The National Provider Identifier (NPI) for James Sondheimer is 1992745897, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-01.