ANDREW OTTO M.D.
NPI 1578862157
Emergency Medicine in Walnut Creek, CA
About Andrew Otto M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW OTTO M.D. (NPI 1578862157) is an individual emergency medicine provider in Walnut Creek, California, licensed in Washington (MD61129047) and active in the NPI registry since March 2011. He is enrolled in Medicare PECOS, is affiliated with Mid Valley Hospital, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Andrew Otto M.d. 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
4Medicare enrollment records show Andrew Otto reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 100 clinicians in this Medicare group
Toppenish, WA 98948
- Reassigned Medicare billing, Washington enrollment
- 55 clinicians in this Medicare group
Leavenworth, WA 98826
- Reassigned Medicare billing, Washington enrollment
- Also billed through NPI 1962406389 (Washington)
- 18 clinicians in this Medicare group
Omak, WA 98841
- Reassigned Medicare billing, Washington enrollment
- 179 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mid Valley Hospital
Critical Access Hospitals · Omak, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94596 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 Andrew Otto's NPI number?
The NPI number for Andrew Otto is 1578862157. It was assigned to this individual provider in the NPPES registry on March 21, 2011.
Where is Andrew Otto located?
Andrew Otto practices at 1990 N California Blvd Suite #400, Walnut Creek, CA 94596. The listed phone number is (540) 981-7000.
What is Andrew Otto's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Andrew Otto enrolled in Medicare?
Yes. Andrew Otto 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 Andrew Otto's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Otto reassigns Medicare benefits to 4 organizations: Victory Emergency Physicians Medical Group Inc (Los Angeles, CA), Olney Emergency Group, A Professional LLC (Toppenish, WA), Chelan County Public Hospital District No. 1 (Leavenworth, WA) and Okanogan County Public Hospital District No. 3 (Omak, WA). 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 Andrew Otto's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Otto accept?
Health plans from Providence Health Plan list Andrew Otto as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Andrew Otto affiliated with any hospitals?
According to CMS data, Andrew Otto is affiliated with Mid Valley Hospital.
When was this NPI record last updated?
The NPPES record for Andrew Otto was last updated on June 15, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Andrew Otto, M.D. · NPI 1578862157
Emergency Medicine physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since March 21, 2011.
## Identity
- **NPI:** 1578862157 (Entity type: Individual)
- **Enumerated:** March 21, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD61129047 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1990 N CALIFORNIA BLVD, SUITE #400, Walnut Creek, CA 94596-3742
- **Phone:** (540) 981-7000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Victory Emergency Physicians Medical Group Inc (NPI 1932402716, Los Angeles, CA); Olney Emergency Group, A Professional LLC (NPI 1386108868, Toppenish, WA); Chelan County Public Hospital District No. 1 (NPI 1437141215, Leavenworth, WA); Okanogan County Public Hospital District No. 3 (NPI 1255387403, Omak, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** June 15, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1578862157) · Data from the CMS NPPES public registry.