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Edit this profileAt a glance
- 259 E Erie St Fl 17, Chicago, IL 60611
About Katherine Larsen
Katherine M. Larsen, NP-C is a nurse practitioner based in Chicago, IL. Medicare claims data shows Katherine provided 330 services to 329 patients. 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, insertion of needle into vein for collection of blood sample, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1760970073.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (312) 926-6000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
259 E ERIE ST FL 17
Chicago, IL 60611
Procedures Most Often Billed to Medicare
330 services · 329 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
53 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
97 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
52 | As often as other peers in Nurse Practitioner |
| Automated urinalysis test | Lab test | 81003 |
34 | More often than most peers in Nurse Practitioner |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | Lab test | 87635 |
26 | As often as other peers in Nurse Practitioner |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
15 | Less often than most peers in Nurse Practitioner |
| Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) | Lab test | 87880 |
15 | Less often than most peers in Nurse Practitioner |
| Detection test by nucleic acid for multiple types influenza virus | Lab test | 87502 |
14 | Less often than most peers in Nurse Practitioner |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
12 | Less often than most peers in Nurse Practitioner |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
12 | Less often than most peers in Nurse Practitioner |
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 8
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 nurse practitioners in Chicago 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 Insertion of needle into vein for collection of blood sample 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Katherine M. Larsen specialize in?
Katherine M. Larsen is a nurse practitioner in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Katherine M. Larsen located?
Katherine M. Larsen is listed at 259 E Erie St Fl 17, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Katherine M. Larsen's phone number?
The number on file is (312) 926-6000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Katherine M. Larsen?
Katherine M. Larsen's National Provider Identifier is 1760970073. 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 Katherine M. Larsen train?
Katherine M. Larsen attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Katherine M. Larsen have?
Katherine M. Larsen has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What does Katherine M. Larsen do most often?
According to Medicare billing data, Katherine M. Larsen performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Katherine M. Larsen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Katherine M. Larsen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.