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

Gregory J Porter MD Inc

Organization Anesthesiology Physician · NPI 1588849954

Gregory J Porter MD Inc is an Anesthesiology Physician in Grass Valley, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008
Specialties on file
2
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

400 Sierra College Dr Ste B
Grass Valley, CA 95945-5093
Phone: (530) 272-3428
Fax: (530) 272-3429
Show map & directions

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence G72310 (CA)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence G72310 (CA)

Record details

NPI number1588849954
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gregory Porter — President · (714) 347-1010
NPI enumeratedJanuary 4, 2008
Last updated in NPPESOctober 11, 2023
Certification dateOctober 11, 2023
Mailing addressPo Box 25033, Santa Ana, CA 92799-5033

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