Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Lance Montgomery, 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

1952304594

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Lance Montgomery

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 29, 2020

Taxonomy & licenses

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License G65982 (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
00G659820	Medicaid	CA	-
00G659820G89	Other	CA	CAL-OPTIMA
RR2000 33606	Other	CA	MEDICARE RAILROAD

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 Robert Montgomery?

The National Provider Identifier (NPI) for Robert Montgomery is 1952304594, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Montgomery practice?

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

Other providers at this practice address

Browse all →

Lonnie Moskow Orthopaedic Hand Surgery Physician · Laguna Woods, CA NPI 1184627721 Larry Gersten Adult Reconstructive Orthopaedic Surgery Physician · Laguna Woods, CA NPI 1417950064 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 2020-06-29.