Megan M. Mescher-Cox, D.O.
Internal Medicine Physician · Oxnard, CA
Megan M. Mescher-Cox, D.O. is an internal medicine physician with a practice address in Oxnard, California, and NPI 1962794578, issued on May 15, 2011. Check the license (California 20A12665, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Megan M. Mescher-Cox
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A12665 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2901 N Ventura RD Ste 120, Oxnard, CA 93036
- Phone
- (805) 485-7877
- Enumerated
- May 15, 2011
- Record last updated
- Oct 4, 2023
- Fax
- (805) 981-4472
- Medicare enrollment
- Enrolled (PECOS I20131122001409); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2901 N Ventura RD Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Mescher, M.D.Pulmonary Disease Physician1912908856
Verify Megan M. Mescher-Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A12665Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% more Medicare Part D claims than the average internal medicine physician in 2024
5,009 Medicare Part D claims for 404 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. 148 claims were for opioids.
Most prescribed
- Levothyroxine Sodium315 claims
- Atorvastatin Calcium292 claims
- Amlodipine Besylate206 claims
- Losartan Potassium154 claims
- Rosuvastatin Calcium137 claims
- Trazodone Hcl115 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 MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $171.15
8 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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
- Dignity Health Medical FoundationOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Megan M. Mescher-Cox among 17,696 internal medicine physician records in California
Megan M. Mescher-Cox, D.O. 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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).
44 internal medicine physician records list a practice address in Oxnard
They are 44 of the 3,211 NPPES records with a practice address in Oxnard, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oxnard → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Victor Alcocer, M.D.Oxnard, CA 930361023171162
- Manuel BeltranOxnard, CA 930361538705462
- Christopher Brana, M.D.Oxnard, CA 930361386096345
- Paul Cisarik, MDOxnard, CA 930361952515421
- Liz Diaz-Querol, MDOxnard, CA 930361184962565
- Ming Heng, M.D.Oxnard, CA 930361780638460
- Morgan Lyons, D.O.Oxnard, CA 930361578790135
- Anuradha Maganti, M.D.Oxnard, CA 930361871521088
Common questions
What is Megan M. Mescher-Cox, D.O.'s NPI number?
Megan M. Mescher-Cox, D.O.'s National Provider Identifier (NPI) is 1962794578, issued on May 15, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Megan M. Mescher-Cox, D.O. located?
The NPPES record lists a practice address at 2901 N Ventura RD Ste 120, Oxnard, CA, 93036. Phone: (805) 485-7877. Providers update this record themselves, so call before visiting.
How can I verify Megan M. Mescher-Cox, D.O.'s license?
NPPES lists California license number 20A12665, 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 Megan M. Mescher-Cox, D.O. prescribe under Medicare Part D?
In 2024, Megan M. Mescher-Cox, D.O. had 5,009 Medicare Part D claims for 404 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Megan M. Mescher-Cox, D.O.'s MIPS final score?
The 2023 MIPS final score is 96.5 of 100. 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.