Jillian Maruna
NPI 1306274535 · Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jillian Maruna is a Nurse Practitioner provider in Chicago, IL (NPI 1306274535).
Provider details
- NPI number
- 1306274535
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 209010860 (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
12 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
173 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 | 48 | $88 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 46 | $122 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 34 | $87 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 32 | $59 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 13 | $66 |
Typical Medicare-allowed amounts for these services range $59–$122 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-10-25
- Last updated
- 2020-02-11
- Certified
- 2020-02-11
Frequently asked questions
- What is Jillian Maruna's NPI number?
- Jillian Maruna's National Provider Identifier (NPI) is 1306274535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jillian Maruna's specialty?
- Jillian Maruna is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jillian Maruna located?
- Jillian Maruna's practice location on file with NPPES is 259 E Erie St, Chicago, IL 60611.
- What is Jillian Maruna's phone number?
- The practice phone number listed in the NPPES registry for Jillian Maruna is (312) 926-4343.
- Does Jillian Maruna accept Medicare?
- Jillian Maruna is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jillian Maruna's NPI active?
- Yes — Jillian Maruna's NPI (1306274535) is active in the NPPES registry as of the last update on 2020-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.