Andrew Ross Weymer, M.D.
Pulmonary Disease Physician · Oxnard, CA
Andrew Ross Weymer, M.D. is a pulmonary disease physician with a practice address in Oxnard, California, and NPI 1689675514, issued on Aug 2, 2005. Check the license (California G67821, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew Ross Weymer
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- G67821 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1910 Outlet Center Dr, Oxnard, CA 93036
- Phone
- (805) 485-2400
- Enumerated
- Aug 2, 2005
- Record last updated
- Dec 5, 2022
- Fax
- (805) 485-3025
- Medicare enrollment
- Enrolled (PECOS I20100212000217); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 1910 Outlet Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raj Bhatia, MDCritical Care Medicine (Internal Medicine) Physician1447281704
- Laura Craver, PA-CPhysician Assistant1972047728
- Genevieve Davis, AGNP - BCAdult Health Nurse Practitioner1700684214
- Brandon Dittmar, NPNurse Practitioner1831704113
- Ryan Gil, MDPulmonary Disease Physician1235635368
- Daniel Goba, M.D.Pulmonary Disease Physician1306031810
Verify Andrew Ross Weymer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average pulmonary disease physician in 2024
1,742 Medicare Part D claims for 325 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Trelegy Ellipta361 claims
- Albuterol Sulfate Hfa252 claims
- Anoro Ellipta119 claims
- Breo Ellipta86 claims
- Fluticasone-Salmeterol74 claims
- Pantoprazole Sodium72 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): 100 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).
Industry payments in 2024: $1,075.64
33 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,806 providers of this specialty with any payment received $5,159.88 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
- West Coast Pulmonary Physicians A Professional Medical CorporationOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Ross Weymer among 1,443 pulmonary disease physician records in California
Andrew Ross Weymer, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1988 · median 2002 among the 1,061 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Oxnard → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Ryan Gil, MDOxnard, CA 930361235635368
- Daniel Goba, M.D.Oxnard, CA 930361306031810
- Movses Hayrabedian, MDOxnard, CA 930361801265046
- Darren Maehara, M.D.Oxnard, CA 930361700145265
- David Mescher, M.D.Oxnard, CA 930361912908856
- Gergana Nelson, MDOxnard, CA 930361972846954
- Zachary Taich, MDOxnard, CA 930361174055180
- George Yu, M.D.Camarillo, CA 930101245231968
Common questions
What is Andrew Ross Weymer, M.D.'s NPI number?
Andrew Ross Weymer, M.D.'s National Provider Identifier (NPI) is 1689675514, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Ross Weymer, M.D. located?
The NPPES record lists a practice address at 1910 Outlet Center Dr, Oxnard, CA, 93036. Phone: (805) 485-2400. Providers update this record themselves, so call before visiting.
How can I verify Andrew Ross Weymer, M.D.'s license?
NPPES lists California license number G67821, 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 Andrew Ross Weymer, M.D. prescribe under Medicare Part D?
In 2024, Andrew Ross Weymer, M.D. had 1,742 Medicare Part D claims for 325 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Andrew Ross Weymer, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.