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

Michael S Duffy Sr DO Inc

Organization Internal Medicine Physician · NPI 1316175342

Michael S Duffy Sr DO Inc is an Internal Medicine Physician in San Diego, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
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

1501 5th Ave Ste 200
San Diego, CA 92101-3224
Phone: (619) 647-5072
Fax: (619) 309-6264
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 20A9616 (CA)
Portable X-ray and/or Other Portable Diagnostic Imaging Supplier Taxonomy 335V00000X · Licence 72004 (CA)

Record details

NPI number1316175342
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michael Duffy — Medical Director · (619) 647-5072
Other names Pacific Medical Care; Pacific Medical Care
NPI enumeratedJune 29, 2009
Last updated in NPPESAugust 16, 2022
Certification dateAugust 16, 2022
Mailing address1501 5th Ave Ste 200, San Diego, CA 92101-3224

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