JOSEPH WELSH DO
NPI 1902893977
Anesthesiology in San Diego, CA
About Joseph Welsh Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH WELSH DO (NPI 1902893977) is an individual anesthesiology provider in San Diego, California, licensed in California (20A13084) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of Rowan University School Of Osteopathic Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Joseph Welsh Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Joseph Welsh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 269 clinicians in this Medicare group
Covina, CA 91723
- Reassigned Medicare billing, California enrollment
- 26 clinicians in this Medicare group
Santa Monica, CA 90404
- Reassigned Medicare billing, California enrollment
- 83 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Joseph Welsh's NPI number?
The NPI number for Joseph Welsh is 1902893977. It was assigned to this individual provider in the NPPES registry on October 4, 2005.
Where is Joseph Welsh located?
Joseph Welsh practices at 3626 Ruffin Rd, San Diego, CA 92123. The listed phone number is (858) 565-9666.
What is Joseph Welsh's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Joseph Welsh enrolled in Medicare?
Yes. Joseph Welsh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Joseph Welsh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Welsh reassigns Medicare benefits to 3 organizations: Anesthesia Service Medical Group (San Diego, CA), Inland Anesthesia Partners, Inc (Covina, CA) and Bayside Anesthesia Medical Group (Santa Monica, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joseph Welsh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Joseph Welsh was last updated on August 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Joseph Welsh, DO · NPI 1902893977
Anesthesiology physician in San Diego, California. Individual provider, active in the CMS NPPES registry since October 4, 2005.
## Identity
- **NPI:** 1902893977 (Entity type: Individual)
- **Enumerated:** October 4, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 20A13084 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3626 RUFFIN RD, San Diego, CA 92123-1810
- **Phone:** (858) 565-9666
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Anesthesia Service Medical Group (NPI 1053354233, San Diego, CA); Inland Anesthesia Partners, Inc (NPI 1962148882, Covina, CA); Bayside Anesthesia Medical Group (NPI 1184668469, Santa Monica, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rowan University School Of Osteopathic Medicine, class of 1994
## Record status
- **NPPES last updated:** August 28, 2024
- **Other identifiers:** Medicaid 0017454170006 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1902893977) · Data from the CMS NPPES public registry.