Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Larry Marc Gersten, M.D.

Adult Reconstructive Orthopaedic Surgery Physician in Laguna Woods, CA · enumerated 2005.

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

National Provider Identifier

1417950064

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Registry record

Entity type Individual (Type 1)

Name Dr. Larry Marc Gersten

Credential M.D.

Sex Male

Practice address 24331 El Toro Rd Ste 200, Laguna Woods, CA, 92637

Phone (949) 586-3200

Fax (949) 900-2116

Enumeration date May 27, 2005

Last updated in NPPES Jun 19, 2020

Taxonomy & licenses

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License G50397 (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
RR2000 19525	Other	CA	MEDICARE RAILROAD
00G503970	Medicaid	CA	-
00G503970G89	Other	CA	CAL-OPTIMA

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.

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Frequently asked questions

How do I verify Larry Gersten's NPI record?

Cross-check NPI 1417950064 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417950064 active?

Yes, as of the latest NPPES snapshot, NPI 1417950064 is active (record last updated 2020-06-19).

Other providers at this practice address

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Robert Montgomery Adult Reconstructive Orthopaedic Surgery Physician · Laguna Woods, CA NPI 1952304594 Lonnie Moskow Orthopaedic Hand Surgery Physician · Laguna Woods, CA NPI 1184627721 Scott Graham Sports Medicine (Orthopaedic Surgery) Physician · Laguna Woods, CA NPI 1902809551 Kyle Coker Orthopaedic Hand Surgery Physician · Laguna Woods, CA NPI 1265436620 Sharon Harrison Physical Therapist · Laguna Hills, CA NPI 1376548651 Bryce Johnson Orthopaedic Surgery of the Spine Physician · Laguna Woods, CA NPI 1083660864 Stacy Cohen-Barrera Medical Physician Assistant · Laguna Woods, CA NPI 1689615361 Arash Aminian Orthopaedic Foot and Ankle Surgery Physician · Laguna Woods, CA NPI 1154363554

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-19.