Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Joseph Welsh, DO

Individual provider Anesthesiology Physician · NPI 1902893977

Joseph Welsh, DO practises Anesthesiology in San Diego, California. Graduated from Rowan University School of Osteopathic Medicine in 1994, 32 years ago. Practices with Anesthesia Service Medical Group, a 237-clinician group and accepts Medicare assignment. Licensed in California and Pennsylvania.

Years since qualifying
32
Trained at
Rowan University School of Osteopathic Medicine
Licensed in
CA, PA
In the registry since
2005
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3626 Ruffin Rd
San Diego, CA 92123-1810
Phone: (858) 565-9666
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 20A13084 (CA)
Anesthesiology Physician Taxonomy 207L00000X · Licence OS009910L (PA)

Record details

NPI number1902893977
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 4, 2005
Last updated in NPPESAugust 28, 2024
Certification dateAugust 28, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 1994 (32 years in practice)
Group practice Anesthesia Service Medical Group — 237 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients260
Services billed 348 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Anesthesia Service Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 237 clinicians in the practice; 12 are shown here.

Other providers in San Diego