Physician Profile
Kris M. Lahren, MD practices internal medicine in Wausau, WI. Kris is a 1988 graduate of Saint Louis University School of Medicine. According to Medicare claims data, Kris cared for 764 Medicare patients across 775 services. The services billed most often include test to examine how well the lungs exchange gases, test to determine lung volumes using sensors, and test to measure expiratory airflow and volume changes before and after medication administration.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
425 PINE RIDGE BLVD SUITE 200
Wausau, WI 54401
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
775 services · 764 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Exam of lung airways using an endoscope | Procedure | 31623 |
16 | Too few peers to compare |
| Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound | Procedure | 31654 |
13 | Less often than most peers in Internal Medicine |
| Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope | Procedure | 31629 |
13 | Less often than most peers in Internal Medicine |
| Biopsy of lobe of lung using an endoscope, 1 lobe | Procedure | 31628 |
13 | Less often than most peers in Internal Medicine |
| Computer-assisted image-guided navigation of lung airways using an endoscope | Procedure | 31627 |
13 | Less often than most peers in Internal Medicine |
| Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes | Procedure | 31652 |
11 | Less often than most peers in Internal Medicine |
| Review by radiologist of ct guidance for needle placement | Imaging | 77012 |
13 | Too few peers to compare |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
226 | More than most peers in Internal Medicine |
| Test to determine lung volumes using sensors | Treatment | 94726 |
209 | More than most peers in Internal Medicine |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
200 | More than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Lahren is an internist in Wausau, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Dr. Lahren is listed at 425 Pine Ridge Blvd Suite 200, Wausau, WI 54401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (715) 847-2480. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Lahren's National Provider Identifier is 1700891546. 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
Dr. Lahren attended Saint Louis University School of Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
Dr. Lahren has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Lahren performs procedures including exam of lung airways using an endoscope, exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound and needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope; reads or performs imaging such as review by radiologist of ct guidance for needle placement; provides treatments such as test to examine how well the lungs exchange gases and test to determine lung volumes using sensors. 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 Dr. Lahren. 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.