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

Ronald S Lederman, MD

Orthopaedic Surgery Physician in West Bloomfield, MI · enumerated 2006.

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

National Provider Identifier

1609855253

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Registry record

Entity type Individual (Type 1)

Name Ronald S Lederman

Credential MD

Sex Male

Practice address West Bloomfield, MI, 48323

Phone (248) 669-2000

Fax (248) 669-2110

Enumeration date Jan 12, 2006

Last updated in NPPES Jul 19, 2016

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

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License RL064514 (MI) Primary

174400000X Specialist Other Service Providers · License RL064514 (MI) Secondary

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
P00215896	Other	-	MEDICARE RAILROAD
F72414	Other	-	HAP
0F33953	Other	MI	BCBS
203208200	Other	-	WORK COMP
129392	Other	-	CARE CHOICES

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

Is NPI 1609855253 active?

Yes, as of the latest NPPES snapshot, NPI 1609855253 is active (record last updated 2016-07-19).

How do I verify Ronald Lederman's NPI record?

Cross-check NPI 1609855253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-19.