Physician Profile
Unclaimed ProfileAbout SHAFFER
Joan Shaffer, M.D. is a healthcare provider in Saint Louis, MO specializing in critical care medicine. Medicare claims data shows Joan provided 133 services to 68 patients.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (314) 251-6486
- Email not available
Practice Locations
621 S NEW BALLAS RD SUITE 4006-B
Saint Louis, MO 63141
Procedures Most Often Billed to Medicare
133 services · 68 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
95 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
38 |
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.
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.
Other critical care physicians in Saint Louis 8
Same specialty, same city.
Common questions
What kind of doctor is Dr. Shaffer?
Dr. Shaffer is a critical care physician in Saint Louis, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Critical Care Medicine”.
NPI registry
What is Dr. Shaffer's address?
Dr. Shaffer is listed at 621 S NEW BALLAS RD SUITE 4006-B, Saint Louis, MO 63141. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Shaffer?
The number on file is (314) 251-6486. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Shaffer?
Dr. Shaffer's National Provider Identifier is 1568429801. 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 much experience does Dr. Shaffer have?
Dr. Shaffer has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Dr. Shaffer perform?
According to Medicare billing data, Dr. Shaffer 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
Is Dr. Shaffer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Shaffer. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.