Brian Lam, MD
NPI 1649899881 · Rheumatology Physician · Katy, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Lam, MD is a Rheumatology Physician provider in Katy, TX (NPI 1649899881).
Provider details
- NPI number
- 1649899881
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- V8312 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 88 | 41 |
| Methotrexate Sodiumbrand: Methotrexate | 65 | 14 |
| Hydroxychloroquine Sulfate | 32 | 11 |
| Mycophenolate Mofetil | 24 | — |
| Leflunomide | 20 | — |
| Celecoxib | 17 | — |
| Gabapentin | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-08
- Last updated
- 2025-09-29
- Certified
- 2025-09-29
Frequently asked questions
- What is Brian Lam's NPI number?
- Brian Lam's National Provider Identifier (NPI) is 1649899881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Lam's specialty?
- Brian Lam is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Lam located?
- Brian Lam's practice location on file with NPPES is 23920 Katy Fwy Ste 440, Katy, TX 77494-0881.
- What is Brian Lam's phone number?
- The practice phone number listed in the NPPES registry for Brian Lam is (346) 257-4299.
- Does Brian Lam accept Medicare?
- Brian Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Lam's NPI active?
- Yes — Brian Lam's NPI (1649899881) is active in the NPPES registry as of the last update on 2025-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.