Provider Profile
Leah A. Mergen, PA-C
Unclaimed ProfileAbout Leah Mergen
Listed in the NPI registry as a physician assistant, Leah A. Mergen, PA-C practices in Sioux Falls, SD. According to Medicare claims data, Leah cared for 171 Medicare patients across 228 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (605) 367-8214
- Email not available
Practice Locations
521 N MAIN AVE STE 100
Sioux Falls, SD 57104
Procedures Most Often Billed to Medicare
228 services · 171 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
102 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
92 | As often as other peers in Physician Assistant |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
34 | As often as other peers in Physician Assistant |
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.
Related specialists at this location 5
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.
Other physician assistants in Sioux Falls 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Leah A. Mergen specialize in?
Leah A. Mergen is a physician assistant in Sioux Falls, SD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Leah A. Mergen located?
Leah A. Mergen is listed at 521 N Main Ave Ste 100, Sioux Falls, SD 57104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Leah A. Mergen's phone number?
The number on file is (605) 367-8214. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Leah A. Mergen's NPI number?
Leah A. Mergen's National Provider Identifier is 1023389392. 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 Leah A. Mergen train?
Leah A. Mergen attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How long has Leah A. Mergen been practicing?
Leah A. Mergen has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Leah A. Mergen do most often?
According to Medicare billing data, Leah A. Mergen 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
Has Leah A. Mergen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Leah A. Mergen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.