Are you Erning Duan? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileErning Duan is a nurse practitioner — adult health based in Saint Louis, MO. According to Medicare claims data, the services billed most often include subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes. The provider's National Provider Identifier (NPI) is 1437982485.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
621 S NEW BALLAS RD
Saint Louis, MO 63141
Within Nurse Practitioner - Adult Health generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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22 services · 18 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
22 | Less often than most peers in Nurse Practitioner, Adult |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Erning Duan is a nurse practitioner in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Adult Health”.
NPI registry
Erning Duan is listed at 621 S New Ballas Rd, Saint Louis, MO 63141. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (314) 303-1022. Contact the office directly to confirm availability and scheduling.
NPI registry
Erning Duan's National Provider Identifier is 1437982485. 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
Erning Duan attended Other, graduating in 2021. This comes from the CMS National Downloadable File.
CMS public data
Erning Duan has 5 years experience. Calculated from a graduation year of 2021, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Erning Duan 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 Erning Duan. If this is you, claiming it is free.
Guide.md
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