Audrey Oen Tio, M.D.
Hospitalist Physician · Modesto, CA
Audrey Oen Tio, M.D. is a hospitalist physician with a practice address in Modesto, California, and NPI 1033125729, issued on Aug 1, 2006. Check the license (California C54871, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Audrey Oen Tio
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- C54871 CA
Self-reported in NPPES; status is on the state search - Practice location
- 600 Coffee RD, Modesto, CA 95355
- Phone
- (209) 524-1211
- Enumerated
- Aug 1, 2006
- Record last updated
- Oct 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111220000259); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 600 Coffee RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amr Al-Bacil, MDCritical Care Medicine (Internal Medicine) Physician1538134374
Verify Audrey Oen Tio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54871Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average hospitalist physician in 2024
12 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 2 group practices
- Sutter Bay Medical FoundationLos Altos, CA
- Sutter Valley Medical FoundationModesto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Audrey Oen Tio among 3,099 hospitalist physician records in California
Audrey Oen Tio, M.D. 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1999 · median 2010 among the 2,505 with a school on file
- Record last updated2011 · 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 Modesto → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Christopher Anago, M.D.Modesto, CA 953551578529673
- Ricardo Brizuela, MDModesto, CA 953551174605224
- Sohail Gagan, M.D.Modesto, CA 953551821054594
- Samuel Ko, M.D.Modesto, CA 953551790826279
- Hien Le, MDModesto, CA 953551366408460
- Martin Lim, MDModesto, CA 953551558397588
- Abrar Mirza, MDModesto, CA 953551679530380
- Thong Nguyen, MDModesto, CA 953551912965096
Common questions
What is Audrey Oen Tio, M.D.'s NPI number?
Audrey Oen Tio, M.D.'s National Provider Identifier (NPI) is 1033125729, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Audrey Oen Tio, M.D. located?
The NPPES record lists a practice address at 600 Coffee RD, Modesto, CA, 95355. Phone: (209) 524-1211. Providers update this record themselves, so call before visiting.
How can I verify Audrey Oen Tio, M.D.'s license?
NPPES lists California license number C54871, 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 Audrey Oen Tio, M.D. prescribe under Medicare Part D?
In 2024, Audrey Oen Tio, M.D. had 12 Medicare Part D claims; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.