Olivia A. Mansilla, MD
Internal Medicine Physician · Redding, CA
Olivia A. Mansilla, MD is an internal medicine physician with a practice address in Redding, California, and NPI 1376563189, issued on Jul 21, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Olivia A. Mansilla
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101229981 VA
Self-reported in NPPES; status is on the state search - Practice location
- 784 Lakeview Dr, Redding, CA 96001
- Phone
- (804) 301-0225
- Enumerated
- Jul 21, 2006
- Record last updated
- Aug 21, 2025
- Fax
- (804) 301-0225
- Medicaid ID
- 010021065 VA
- Medicare enrollment
- Enrolled (PECOS I20090217000563); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Olivia A. Mansilla in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,574 Medicare Part D claims for 142 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 36 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium96 claims
- Levothyroxine Sodium83 claims
- Amlodipine Besylate47 claims
- Atorvastatin Calcium41 claims
- Pantoprazole Sodium36 claims
- Quetiapine Fumarate35 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.
Industry payments in 2024: $996.55
38 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Shasta Community Health CenterRedding, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olivia A. Mansilla among 17,696 internal medicine physician records in California
Olivia A. Mansilla, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1989 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 internal medicine physician records list a practice address in Redding
They are 38 of the 3,572 NPPES records with a practice address in Redding, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Redding → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fernando Alvarez, M.D.Redding, CA 960011801804901
- Than Aung, MDRedding, CA 960011578504841
- Stephen Casey, M.D.Redding, CA 960011902973480
- William Devlaming, M.D.Redding, CA 960011023080488
- James Hardy, M.D.Redding, CA 960011881689016
- Lily Jamm, M.D.Redding, CA 960011700971769
- Carolyn Lintner, M.D.Redding, CA 960011558303008
- Vladimir Medina, MDRedding, CA 960011497739965
Common questions
What is Olivia A. Mansilla, MD's NPI number?
Olivia A. Mansilla, MD's National Provider Identifier (NPI) is 1376563189, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Olivia A. Mansilla, MD located?
The NPPES record lists a practice address at 784 Lakeview Dr, Redding, CA, 96001. Phone: (804) 301-0225. Providers update this record themselves, so call before visiting.
How can I verify Olivia A. Mansilla, MD's license?
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 Olivia A. Mansilla, MD prescribe under Medicare Part D?
In 2024, Olivia A. Mansilla, MD had 1,574 Medicare Part D claims for 142 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.