Christopher Cao Tonthat, D.O
Hospitalist Physician · Oroville, CA
Christopher Cao Tonthat, D.O is a hospitalist physician with a practice address in Oroville, California, and NPI 1952751596, issued on Jun 14, 2016. Check the license (California 20A17233, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher Cao Tonthat
- Credential
- D.O
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 20A17233 CA
SL1152 NV
Self-reported in NPPES; status is on the state search - Practice location
- 2767 Olive Hwy, Oroville, CA 95966
- Phone
- (530) 533-8500
- Enumerated
- Jun 14, 2016
- Record last updated
- Oct 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (530) 532-8370
- Medicare enrollment
- Enrolled (PECOS I20191210000986); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 2767 Olive Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Abbott, DOInternal Medicine Physician1477015329
- Samuel Acebo, MSN, CRNACertified Registered Nurse Anesthetist1083131445
- Natashya Adams, FNP-CFamily Nurse Practitioner1063979110
- Yesong AhnStudent in an Organized Health Care Education/Training Program1881532810
- Vanessa Akines, FNPNurse Practitioner1790417434
- Phillip Anderson, MDStudent in an Organized Health Care Education/Training Program1811835572
Verify Christopher Cao Tonthat in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A17233Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average hospitalist physician in 2024
153 Medicare Part D claims for 71 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium20 claims
- Clopidogrel14 claims
- Prednisone12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Orohealth Corporation A Non Profit Healthcare SystemOroville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Cao Tonthat among 3,099 hospitalist physician records in California
Christopher Cao Tonthat, D.O is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2016 · median 2010 among the 2,505 with a school on file
- Record last updated2019 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Oroville → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Duke Ha, D.O.Oroville, CA 959661376981118
- Hanh Nguyen, D.O.Oroville, CA 959661780946376
- Sukhdeep Kaur, MDParadise, CA 959691164736708
- Pallavkumar Patel, M.D.Paradise, CA 959691194986919
- Eric Stokmanis, M.D.Paradise, CA 959691700819588
- Andre VenturiniParadise, CA 959691992978290
- Kevin Brown, M.D.Chico, CA 959731376597609
- Forrest OlsonChico, CA 959731760434799
Common questions
What is Christopher Cao Tonthat, D.O's NPI number?
Christopher Cao Tonthat, D.O's National Provider Identifier (NPI) is 1952751596, issued on Jun 14, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Cao Tonthat, D.O located?
The NPPES record lists a practice address at 2767 Olive Hwy, Oroville, CA, 95966. Phone: (530) 533-8500. Providers update this record themselves, so call before visiting.
How can I verify Christopher Cao Tonthat, D.O's license?
NPPES lists California license number 20A17233, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher Cao Tonthat, D.O prescribe under Medicare Part D?
In 2024, Christopher Cao Tonthat, D.O had 153 Medicare Part D claims for 71 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Christopher Cao Tonthat, D.O's MIPS final score?
The 2023 MIPS final score is 73.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.