Physician Profile
Unclaimed ProfileAbout CASTILLO
Based in Houston, TX, Brian S Castillo, M.D. is listed in the NPI registry under pathology. Brian graduated from University of Texas Medical School at Houston in 2008. Brian is also listed as specialising in anatomic & clinical pathology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Castillo specialise in?
Dr. Castillo is a pathology in Houston, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
Where is Dr. Castillo located?
Dr. Castillo is listed at 6431 FANNIN ST, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Castillo's phone number?
The number on file is (713) 500-5301. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Castillo?
Dr. Castillo's National Provider Identifier is 1528224151. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Castillo go to medical school?
Dr. Castillo attended University of Texas Medical School at Houston, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Castillo have?
Dr. Castillo has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Castillo do most often?
According to Medicare billing data, Dr. Castillo performs procedures including mechanical separation of plasma from blood, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Castillo's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Castillo. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (713) 500-5301
- Email not available
Practice Locations
6431 FANNIN ST
Houston, TX 77030
Procedures Most Often Billed to Medicare
1,099 services · 860 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Mechanical separation of plasma from blood | Procedure | 36514 |
177 |
| Protein measurement, serum | Lab test | 84165 |
702 |
| Protein measurement, body fluid | Lab test | 84166 |
157 |
| Immunologic analysis technique on body fluid, other fluids with concentration | Lab test | 86335 |
63 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pathology specialists in Houston 8
Same specialty, same city.
Trained at University of Texas Medical School at Houston 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2008 at University of Texas Medical School at Houston 8
Providers who graduated from the same medical school in the same year.
Also performs Mechanical separation of plasma from blood 8
Providers in TX who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.