Katherine Larsen, NP-C
NPI 1760970073 · Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Larsen, NP-C is a Nurse Practitioner provider in Chicago, IL (NPI 1760970073).
Provider details
- NPI number
- 1760970073
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 209017504 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
330 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 97 | $114 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 53 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $81 |
| Automated Urinalysis Test81003 | 34 | $2 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 26 | $50 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 35 | 35 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 27 | 26 |
| Methylprednisolone | 21 | 21 |
| Doxycycline Hyclate | 17 | 16 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 17 | 17 |
| Prednisone | 17 | 17 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-23
- Last updated
- 2021-05-18
- Certified
- 2021-05-18
Frequently asked questions
- What is Katherine Larsen's NPI number?
- Katherine Larsen's National Provider Identifier (NPI) is 1760970073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Larsen's specialty?
- Katherine Larsen is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Larsen located?
- Katherine Larsen's practice location on file with NPPES is 259 E Erie St Fl 17, Chicago, IL 60611-2987.
- What is Katherine Larsen's phone number?
- The practice phone number listed in the NPPES registry for Katherine Larsen is (312) 926-6000.
- Does Katherine Larsen accept Medicare?
- Katherine Larsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Larsen's NPI active?
- Yes — Katherine Larsen's NPI (1760970073) is active in the NPPES registry as of the last update on 2021-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.