NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Victor William Macko, M.D.

Orthopaedic Surgery Physician in Stockton, CA · enumerated 2005.

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

National Provider Identifier

1720085921

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Victor William Macko
Credential M.D.
Sex Male
Practice address 2545 W Hammer Ln, Stockton, CA, 95209
Phone (209) 957-7050
Enumeration date Jul 1, 2005
Last updated in NPPES Oct 18, 2010

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License A44688 (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
0219850005 Other CA CIGNA MEDICARE PIN

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 Victor Macko practice?
The practice location on file with NPPES is in Stockton, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Victor Macko?
The National Provider Identifier (NPI) for Victor Macko is 1720085921, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-18.