Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jack H Koumjian, DDS
Prosthodontics in Palo Alto, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073629390
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Registry record
Entity type Individual (Type 1)
Name Jack H Koumjian
Credential DDS
Sex Male
Practice address 770 Welch Rd, Ste 280, Palo Alto, CA, 94304
Phone (650) 347-3426
Fax (650) 324-0103
Enumeration date Aug 21, 2006
Last updated in NPPES Dec 20, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1073629390 | Other | CA | DENTICAL |
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.
Frequently asked questions
What is the NPI number for Jack Koumjian?
The National Provider Identifier (NPI) for Jack Koumjian is 1073629390, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jack Koumjian practice?
The practice location on file with NPPES is in Palo Alto, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-20.