Physician Profile
Unclaimed ProfileAbout DUFFY
Liam M Duffy, MD practises otolaryngology in Rapid City, SD. Liam is a 2019 graduate of Sanford School of Medicine of University of South Dakota. Liam is also listed as specialising in otolaryngology (ent). According to Medicare claims data, Liam cared for 68 Medicare patients across 73 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Duffy specialise in?
Dr. Duffy is an otolaryngology in Rapid City, SD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OTOLARYNGOLOGY”.
NPI registry
Where is Dr. Duffy located?
Dr. Duffy is listed at 353 FAIRMONT BLVD, Rapid City, SD 57701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Duffy's phone number?
The number on file is (605) 755-1000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Duffy's NPI number?
Dr. Duffy's National Provider Identifier is 1902369820. 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
Where did Dr. Duffy go to medical school?
Dr. Duffy attended Sanford School of Medicine of University of South Dakota, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Duffy been practising?
Dr. Duffy has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Duffy do most often?
According to Medicare billing data, Dr. Duffy performs procedures including diagnostic exam of voice box using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Duffy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Duffy. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (605) 755-1000
- Email not available
Practice Locations
353 FAIRMONT BLVD
Rapid City, SD 57701
Procedures Most Often Billed to Medicare
73 services · 68 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
12 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
41 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
20 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated 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 otolaryngology specialists in Rapid City 8
Same specialty, same city.
Trained at Sanford School of Medicine of University of South Dakota 7
Other providers in the same specialty who trained at the same institution.
More connections — 13 related providers in 2 groups
Class of 2019 at Sanford School of Medicine of University of South Dakota 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of voice box using a flexible endoscope 5
Providers in SD 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.