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 is a Diagnostic Radiology Physician 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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