Brian Lam, MD
Rheumatology Physician · Katy, TX
Brian Lam, MD is a rheumatology physician with a practice address in Katy, Texas, and NPI 1649899881, issued on Apr 8, 2020. Check the license (Texas V8312, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Lam
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- V8312 TX
Self-reported in NPPES; status is on the state search - Practice location
- 23920 Katy Fwy Ste 440, Katy, TX 77494
- Phone
- (346) 257-4299
- Enumerated
- Apr 8, 2020
- Record last updated
- Jul 21, 2026
- Fax
- (210) 664-3942
- Medicare enrollment
- Enrolled (PECOS I20251021002643); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2020
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 545 in Texas → Look up another NPI →
Also registered at 23920 Katy Fwy Ste 440
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aliya Abdullah, APRN, FNP-CFamily Nurse Practitioner1346069572
- Dominique Cleveland, MDObstetrics & Gynecology Physician1104237643
- Ali El-Halwagi, MDInternal Medicine Physician1467914879
- Kiran Farheen, M.D.Rheumatology Physician1255594446
- Selina Lin, M.D.Obstetrics & Gynecology Physician1093793630
- Leticia Loret De Mola, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1689445710
Verify Brian Lam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license V8312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average rheumatology physician in 2024
478 Medicare Part D claims for 92 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Prednisone88 claims
- Methotrexate65 claims
- Hydroxychloroquine Sulfate32 claims
- Mycophenolate Mofetil24 claims
- Leflunomide20 claims
- Celecoxib17 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.
Bills Medicare through one group practice
- Kiran Farheen PLLCKaty, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Lam among 545 rheumatology physician records in Texas
Brian Lam, MD is one of 545 rheumatology physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 96% of them.
- NPI issued2020 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2020 · median 2004 among the 417 with a school on file
- Record last updated2026 · 46% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Texas
There are 545 rheumatology physician records in Texas.
All 545 in Texas → Every provider in Katy → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Kiran Farheen, M.D.Katy, TX 774941255594446
- Tara Rizvi, M.D.Katy, TX 774941467507343
- Lina Ching, M.D.Katy, TX 774931689848996
- Hiba Ali, MDPasadena, TX 775051679969448
- Mohammed Bari, M.D.Sugar Land, TX 774791518370600
- Latifa Fakoya, D.O.Sugar Land, TX 774791215199971
- Saba Khan, M.D.Sugar Land, TX 774791912109935
- Susan Mathew, M .D.Sugar Land, TX 774791356651244
Common questions
What is Brian Lam, MD's NPI number?
Brian Lam, MD's National Provider Identifier (NPI) is 1649899881, issued on Apr 8, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Brian Lam, MD located?
The NPPES record lists a practice address at 23920 Katy Fwy Ste 440, Katy, TX, 77494. Phone: (346) 257-4299. Providers update this record themselves, so call before visiting.
How can I verify Brian Lam, MD's license?
NPPES lists Texas license number V8312, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Lam, MD prescribe under Medicare Part D?
In 2024, Brian Lam, MD had 478 Medicare Part D claims for 92 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
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.