NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carl G Chakmakjian, D.O.

Medical Oncology Physician in Waco, TX · enumerated 2006.

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

National Provider Identifier

1285675306

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Carl G Chakmakjian
Credential D.O.
Sex Male
Practice address 1700 W Highway 6, Waco, TX, 76712
Phone (254) 399-0741
Fax (254) 399-0779
Enumeration date Jun 9, 2006
Last updated in NPPES Feb 18, 2008

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License L4879 (TX) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
8S3359 Other TX BLUE CROSS OF TEXAS

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 Carl Chakmakjian?
The National Provider Identifier (NPI) for Carl Chakmakjian is 1285675306, a Type 1 (individual) record in the CMS NPPES registry.
Where does Carl Chakmakjian practice?
The practice location on file with NPPES is in Waco, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-18.