Lauren Mathias, M.D.
NPI 1912361072 · Rheumatology Physician · Downey, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lauren Mathias, M.D. is a Rheumatology Physician provider in Downey, CA (NPI 1912361072).
Provider details
- NPI number
- 1912361072
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A155072 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
484 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 220 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 123 | $171 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 74 | $209 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 55 | $159 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 12 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 311 | 83 |
| Hydroxychloroquine Sulfate | 195 | 69 |
| Duloxetine Hcl | 130 | 56 |
| Methotrexate Sodiumbrand: Methotrexate | 124 | 43 |
| Alendronate Sodium | 118 | 43 |
| Gabapentin | 52 | 17 |
| Tramadol Hcl | 52 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,276 across 59 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-05
- Last updated
- 2021-08-13
- Certified
- 2021-08-13
Frequently asked questions
- What is Lauren Mathias's NPI number?
- Lauren Mathias's National Provider Identifier (NPI) is 1912361072, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Mathias's specialty?
- Lauren Mathias is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Lauren Mathias located?
- Lauren Mathias's practice location on file with NPPES is 11480 Brookshire Ave Ste 204, Downey, CA 90241-5023.
- What is Lauren Mathias's phone number?
- The practice phone number listed in the NPPES registry for Lauren Mathias is (562) 904-4466.
- Does Lauren Mathias accept Medicare?
- Lauren Mathias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lauren Mathias's NPI active?
- Yes — Lauren Mathias's NPI (1912361072) is active in the NPPES registry as of the last update on 2021-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.