Lauren Marie Mathias, M.D.
Rheumatology Physician · Downey, CA
Lauren Marie Mathias, M.D. is a rheumatology physician with a practice address in Downey, California, and NPI 1912361072, issued on Apr 5, 2016. Check the license (California A155072, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lauren Marie Mathias
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A155072 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11480 Brookshire Ave Ste 204, Downey, CA 90241
- Phone
- (562) 904-4466
- Enumerated
- Apr 5, 2016
- Record last updated
- Aug 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (562) 904-4466
- Medicare enrollment
- Enrolled (PECOS I20230524002089); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 11480 Brookshire Ave Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathan LimInternal Medicine Physician1396286720
- Katrine Zhiroff, M.D.Interventional Cardiology Physician1245353952
Verify Lauren Marie Mathias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A155072Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,686 Medicare Part D claims for 322 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 81 claims were for opioids.
Most prescribed
- Prednisone311 claims
- Hydroxychloroquine Sulfate195 claims
- Duloxetine Hcl130 claims
- Methotrexate124 claims
- Alendronate Sodium118 claims
- Gabapentin52 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): 90.9 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: $1,276.23
59 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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 2 group practices
- Mrs Physical TherapyErie, PA
- University Primary Care Practices IncCleveland, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lauren Marie Mathias among 926 rheumatology physician records in California
Lauren Marie Mathias, M.D. is one of 926 rheumatology physician records with a practice address in California. 81% 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 85% of them.
- NPI issued2016 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2012 · median 2003 among the 641 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Downey → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Julia Buchfuhrer, D.O.Downey, CA 902411093179319
- Mark Borigini, M.D.Downey, CA 902421043257082
- Juliana ChangDowney, CA 902421801239009
- Solomon Forouzesh, M.D.Culver City, CA 902321457548133
- Elaine Batchlor, MDCompton, CA 902221992214837
- Craig Gordon, MDBeverly Hills, CA 902121215934971
- Shirin Bagheri, M.D.Beverly Hills, CA 902111821341892
- Chia-Chi Lee, M.D., M.P.H.Beverly Hills, CA 902111609221506
Common questions
What is Lauren Marie Mathias, M.D.'s NPI number?
Lauren Marie Mathias, M.D.'s National Provider Identifier (NPI) is 1912361072, issued on Apr 5, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Marie Mathias, M.D. located?
The NPPES record lists a practice address at 11480 Brookshire Ave Ste 204, Downey, CA, 90241. Phone: (562) 904-4466. Providers update this record themselves, so call before visiting.
How can I verify Lauren Marie Mathias, M.D.'s license?
NPPES lists California license number A155072, 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 Lauren Marie Mathias, M.D. prescribe under Medicare Part D?
In 2024, Lauren Marie Mathias, M.D. had 1,686 Medicare Part D claims for 322 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Lauren Marie Mathias, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.9 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.