Provider Profile
William B. Sullivan practices allergy/immunology in Hattiesburg, MS. William is a 1987 graduate of University of Alabama School of Medicine. William is also listed as specializing in specialist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
109 MILLSAPS DR SUITE C
Hattiesburg, MS 39402
Within Allergy and Immunology 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
Allergies
Digestive
Drug allergies
Drug allergy
Emergency
Environmental
Eye
Food allergies
Immune conditions
Immunology
Lung conditions
Respiratory
Sinus
Sinus conditions
Skin
Skin conditions
Most searched procedures
Allergy treatments
Diagnostic
Infusion
Medication therapy
Medications
Preventive
Respiratory
Tests
Treatment
14 services · 12 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
14 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William B. Sullivan is an allergy/immunology in Hattiesburg, MS. That is the designation recorded for this NPI in the federal registry.
NPI registry
William B. Sullivan is listed at 109 Millsaps Dr Suite C, Hattiesburg, MS 39402. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (601) 268-5051. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
William B. Sullivan's National Provider Identifier is 1033177894. 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
William B. Sullivan attended University of Alabama School of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
William B. Sullivan has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William B. Sullivan 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 William B. Sullivan. 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.