DR. ARTHUR ANDREW MARSH PHD, LP
NPI 1811928179
Psychologist - Clinical in San Diego, CA
About Dr. Arthur Andrew Marsh Phd, Lp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARTHUR ANDREW MARSH PHD, LP (NPI 1811928179) is an individual clinical provider in San Diego, California, licensed in California (12986) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Dr. Arthur Andrew Marsh Phd, Lp 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
2Medicare enrollment records show Arthur Marsh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Scottsdale, AZ 85253
- Reassigned Medicare billing, California enrollment
- 766 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92120 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SAN DIEGO, CA 92120
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 Arthur Marsh's NPI number?
The NPI number for Arthur Marsh is 1811928179. It was assigned to this individual provider in the NPPES registry on July 5, 2006.
Where is Arthur Marsh located?
Arthur Marsh practices at 6386 Alvarado Ct Ste 210, San Diego, CA 92120. The listed phone number is (858) 279-1223.
What is Arthur Marsh's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Arthur Marsh enrolled in Medicare?
Yes. Arthur Marsh 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 Arthur Marsh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arthur Marsh reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (San Diego, CA) and Pacific Coast Psychiatric Associates Inc (Scottsdale, AZ). 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 Arthur Marsh'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 Arthur Marsh was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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.
# Dr. Arthur Andrew Marsh, PHD, LP · NPI 1811928179
Clinical provider in San Diego, California. Individual provider, active in the CMS NPPES registry since July 5, 2006.
## Identity
- **NPI:** 1811928179 (Entity type: Individual)
- **Enumerated:** July 5, 2006
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 12986 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6386 ALVARADO CT STE 210, San Diego, CA 92120-4907
- **Phone:** (858) 279-1223
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA); Pacific Coast Psychiatric Associates Inc (NPI 1023125465, Scottsdale, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** September 10, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1811928179) · Data from the CMS NPPES public registry.