Physician Profile
Portia I. Smallbone, MD is a healthcare provider in Houston, TX specializing in hematology. Portia is also listed as specializing in student in an organized health care education program. According to Medicare claims data, the services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1515 HOLCOMBE BLVD
Houston, TX 77030
Within Hematology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Anemia
Bleeding disorders
Blood and immune disorders
Blood cancer
Blood clots
Bone marrow disorders
Clotting disorders
Inherited blood disorders
Iron disorders
Lymph conditions
Lymph disorders
Metabolic blood disorders
Nutritional blood disorders
Organ conditions
Platelet disorders
Protein disorders
Red blood cell disorders
White blood cell disorders
Most searched procedures
Biopsy
Blood treatments
Catheter care
Cell therapy
Cellular therapy
Consultation
Consultations
Diagnostic tests
Infusions
Injections
Lab tests
Medication management
Monitoring
Patient education
Procedures
Transfusion therapy
Transplants
Treatments
106 services · 18 patients · 1 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
106 | As often as other peers in Hematology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Smallbone is a hematology in Houston, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Smallbone is listed at 1515 Holcombe Blvd, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (713) 792-6161. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Smallbone's National Provider Identifier is 1093415796. 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
Dr. Smallbone attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
Dr. Smallbone has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Smallbone the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Smallbone. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.