Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Michael G Myers MD and Eric Trefelner MD Inc

Organization Diagnostic Radiology Physician · NPI 1003027806

Michael G Myers MD and Eric Trefelner MD Inc provides Diagnostic Radiology Physician services in San Mateo, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1475 Woodberry Ave
San Mateo, CA 94403-3712
Phone: (888) 318-8900
Fax: (650) 345-5465
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G68349 (CA)

Record details

NPI number1003027806
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Eric Trefelner — President · (888) 318-8900
Other names Nightshift Radiology
NPI enumeratedMay 24, 2007
Last updated in NPPESAugust 22, 2020
Mailing address1475 Woodberry Ave, San Mateo, CA 94403-3712

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