Physician Profile
William E. Kergosien, M.D. is a healthcare provider in Bay St Louis, MS specializing in family medicine. According to Medicare claims data, William cared for 366 Medicare patients across 376 services. The services billed most often include emergency department visit with high level of medical decision making, emergency department visit with moderate level of medical decision making, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
109 CARROLL AVE
Bay St Louis, MS 39520
Within Family Medicine 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
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
376 services · 366 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
34 | As often as other peers in Family Medicine |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
153 | More often than most peers in Family Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
134 | More often than most peers in Family Medicine |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
33 | More often than most peers in Family Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
22 | As often as other peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William E. Kergosien is a family doctor in Bay St Louis, MS. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
William E. Kergosien is listed at 109 Carroll Ave, Bay St Louis, MS 39520. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (228) 467-6733. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
William E. Kergosien's National Provider Identifier is 1730109018. 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 E. Kergosien attended Other, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
William E. Kergosien has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William E. Kergosien provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. 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 E. Kergosien. 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.