Millicent Leigh Horn, MD is a healthcare provider located in Saint Louis, MO. Millicent is also listed as specialising in internal medicine. Medicare claims data shows Millicent provided 53 services to 52 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Horn is listed at 4901 FOREST PARK AVE DIV IM GENERAL MED, STE 241, Saint Louis, MO 63108. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (314) 362-5060. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Horn's National Provider Identifier is 1427673821. 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. Horn has 6+ years experience. Registered with an NPI since 2020. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
According to Medicare billing data, Dr. Horn 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. Horn. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
4901 FOREST PARK AVE DIV IM GENERAL MED, STE 241
Saint Louis, MO 63108
53 services · 52 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
40 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Same specialty, same street address — most likely the same department or group.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.