Physician Profile
Unclaimed ProfileAbout BAY
Michelle Louise Bay, FNP-C is a nurse practitioner — family practising in Saint Louis, MO. Michelle is also listed as specialising in nurse practitioner — primary care.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Common questions
What does Dr. Bay specialise in?
Dr. Bay is a nurse practitioner in Saint Louis, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Nurse Practitioner — Family”.
NPI registry
Where is Dr. Bay located?
Dr. Bay is listed at 100 S 4TH ST STE 550, Saint Louis, MO 63102. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Bay's phone number?
The number on file is (866) 849-0692. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Bay's NPI number?
Dr. Bay's National Provider Identifier is 1679113708. 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
How long has Dr. Bay been practising?
Dr. Bay 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
What does Dr. Bay do most often?
According to Medicare billing data, Dr. Bay performs procedures including removal of skin and tissue, 20.0 sq cm or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Bay confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Bay. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (866) 849-0692
- Email not available
Practice Locations
100 S 4TH ST STE 550
Saint Louis, MO 63102
Procedures Most Often Billed to Medicare
1,081 services · 288 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of skin and tissue, 20.0 sq cm or less | Procedure | 11042 |
54 |
| Fluorescence wound imaging for bacteria, first anatomic site | 0598T |
39 | |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
363 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
260 |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
184 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
131 |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
50 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 16 related providers in 2 groups
Other nurse practitioners in Saint Louis 8
Same specialty, same city.
Also performs Removal of skin and tissue, 20.0 sq cm or less 8
Providers in MO who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.