OTTO J THOMAS MD
NPI 1073804118
Anesthesiology in Marysville, CA
About Otto J Thomas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OTTO J THOMAS MD (NPI 1073804118) is an individual anesthesiology provider in Marysville, California, licensed in California (A123150) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of University Of Rochester School Of Medicine And Dentistry (2011).
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
Otto J Thomas Md 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 Otto Thomas reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grass Valley, CA 95945
- Reassigned Medicare billing, California enrollment
- 833 clinicians in this Medicare group
Manteca, CA 95336
- Reassigned Medicare billing, California enrollment
- 488 clinicians in this Medicare group
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
- 70 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 269 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
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.
MARYSVILLE, CA 95901
MARYSVILLE, CA 95901
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 Otto Thomas's NPI number?
The NPI number for Otto Thomas is 1073804118. It was assigned to this individual provider in the NPPES registry on April 25, 2011.
Where is Otto Thomas located?
Otto Thomas practices at 726 4th St, Marysville, CA 95901. The listed phone number is (530) 749-4300.
What is Otto Thomas's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Otto Thomas enrolled in Medicare?
Yes. Otto Thomas 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 Otto Thomas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Otto Thomas reassigns Medicare benefits to 4 organizations: Cep America - Anesthesia PC (Grass Valley, CA), First Choice Physician Partners (Manteca, CA), Corona Anesthesia Group, Inc. (Corona, CA) and Anesthesia Service Medical Group (San Diego, 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 Otto Thomas'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 Otto Thomas was last updated on September 15, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Otto J Thomas, MD · NPI 1073804118
Anesthesiology physician in Marysville, California. Individual provider, active in the CMS NPPES registry since April 25, 2011.
## Identity
- **NPI:** 1073804118 (Entity type: Individual)
- **Enumerated:** April 25, 2011
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A123150 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 726 4TH ST, Marysville, CA 95901-5656
- **Phone:** (530) 749-4300
## 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): Cep America - Anesthesia PC (NPI 1215413638, Grass Valley, CA); First Choice Physician Partners (NPI 1760724637, Manteca, CA); Corona Anesthesia Group, Inc. (NPI 1558865840, Corona, CA); Anesthesia Service Medical Group (NPI 1053354233, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Rochester School Of Medicine And Dentistry, class of 2011
## Record status
- **NPPES last updated:** September 15, 2016
- **Other identifiers:** Medicare PIN CA208614 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1073804118) · Data from the CMS NPPES public registry.