Baldwin Wilfred Marchack, D.D.S.

Baldwin Wilfred Marchack is a General Practice Dentistry provider (Dentist) practicing in Pasadena, CA, registered in the NPPES registry with NPI 1619136363 since 2008. The credential DDS stands for Doctor of Dental Surgery.

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NPI	1619136363
Entity type	Individual (Type 1)
Name	Baldwin Wilfred Marchack
Credential	D.D.S.
Sex	Male
Practice address	566 EL DORADO ST STE 200, Pasadena, CA, 91101
Phone	6267936700
Fax	6267938777
Enumeration date	2008-06-07
Last updated in NPPES	2024-08-14

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	21919	CA

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Baldwin Marchack, D.D.S.
NPI: 1619136363
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 566 EL DORADO ST STE 200, Pasadena, CA, 91101

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1790137313	Eugenia Chan	Individual	Prosthodontics	Pasadena, CA

Verify this record

Cross-check NPI 1619136363 against the authoritative CMS record: view Baldwin Wilfred Marchack on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Baldwin Marchack practice?

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

What is the NPI number for Baldwin Marchack?

The National Provider Identifier (NPI) for Baldwin Marchack is 1619136363, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-08-14.