Cathleen Mulcahy, APN
NPI 1861637514 · Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cathleen Mulcahy, APN is a Nurse Practitioner provider in Chicago, IL (NPI 1861637514).
Provider details
- NPI number
- 1861637514
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 209007308 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
17 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
31 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) |
|---|---|---|
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 16 | $31 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $88 |
Typical Medicare-allowed amounts for these services range $31–$88 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Semaglutidebrand: Ozempic | 21 |
| Empagliflozinbrand: Jardiance | 20 |
| Metformin Hclbrand: Metformin Hcl Er | 14 |
| Dulaglutidebrand: Trulicity | 13 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 12 |
| Metformin Hcl | 11 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-12-10
- Last updated
- 2021-06-30
- Certified
- 2021-06-30
Frequently asked questions
- What is Cathleen Mulcahy's NPI number?
- Cathleen Mulcahy's National Provider Identifier (NPI) is 1861637514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathleen Mulcahy's specialty?
- Cathleen Mulcahy is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cathleen Mulcahy located?
- Cathleen Mulcahy's practice location on file with NPPES is 259 E Erie St Fl 16, Chicago, IL 60611-2987.
- What is Cathleen Mulcahy's phone number?
- The practice phone number listed in the NPPES registry for Cathleen Mulcahy is (312) 695-2300.
- Does Cathleen Mulcahy accept Medicare?
- Cathleen Mulcahy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cathleen Mulcahy's NPI active?
- Yes — Cathleen Mulcahy's NPI (1861637514) is active in the NPPES registry as of the last update on 2021-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.