Michael G Myers MD and Eric Trefelner MD Inc
NPI 1003027806 · Diagnostic Radiology Physician · San Mateo, CA
Michael G Myers MD and Eric Trefelner MD Inc is a Diagnostic Radiology Physician organization in San Mateo, CA (NPI 1003027806).
Provider details
- NPI number
- 1003027806
- Entity type
- Organization
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Eric Trefelner, President(888) 318-8900
- License
- G68349 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Nightshift Radiology
Registry dates
- Enumerated
- 2007-05-24
- Last updated
- 2020-08-22
Frequently asked questions
- What is Michael G Myers MD and Eric Trefelner MD Inc's NPI number?
- Michael G Myers MD and Eric Trefelner MD Inc's National Provider Identifier (NPI) is 1003027806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Michael G Myers MD and Eric Trefelner MD Inc?
- Michael G Myers MD and Eric Trefelner MD Inc is classified in the NPPES registry as Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael G Myers MD and Eric Trefelner MD Inc located?
- Michael G Myers MD and Eric Trefelner MD Inc's practice location on file with NPPES is 1475 Woodberry Ave, San Mateo, CA 94403-3712.
- What is Michael G Myers MD and Eric Trefelner MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Michael G Myers MD and Eric Trefelner MD Inc is (888) 318-8900.
- Who is the authorized official for Michael G Myers MD and Eric Trefelner MD Inc?
- The authorized official listed on Michael G Myers MD and Eric Trefelner MD Inc's NPPES record is Eric Trefelner, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Michael G Myers MD and Eric Trefelner MD Inc's NPI active?
- Yes — Michael G Myers MD and Eric Trefelner MD Inc's NPI (1003027806) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.