Physician Profile
Unclaimed ProfileAbout FREY
John William Frey, DO practises pulmonary disease in La Crosse, WI. John is also listed as specialising in internal medicine and critical care medicine.
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 is Dr. Frey's specialty?
Dr. Frey is a pulmonary disease in La Crosse, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
Where can I find Dr. Frey?
Dr. Frey is listed at 700 WEST AVE SOUTH, La Crosse, WI 54601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Frey?
The number on file is (608) 785-0940. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Frey's NPI number?
Dr. Frey's National Provider Identifier is 1538600754. 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
What is Dr. Frey's medical education?
Dr. Frey attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Frey been practising?
Dr. Frey has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Frey known for?
According to Medicare billing data, Dr. Frey provides treatments such as test to examine how well the lungs exchange gases and test to determine lung volumes using sensors, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Frey confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Frey. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (608) 785-0940
- Email not available
Practice Locations
700 WEST AVE SOUTH
La Crosse, WI 54601
Procedures Most Often Billed to Medicare
779 services · 654 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
92 |
| Test to determine lung volumes using sensors | Treatment | 94726 |
74 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
54 |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
40 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
159 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
139 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
107 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
49 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
44 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
21 |
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 1
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 pulmonary diseases in La Crosse 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Test to examine how well the lungs exchange gases 8
Providers in WI 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.