Jillian Walker, NP
NPI 1588056584 · Adult Health Nurse Practitioner · West Hempstead, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jillian Walker, NP is a Adult Health Nurse Practitioner provider in West Hempstead, NY (NPI 1588056584).
Provider details
- NPI number
- 1588056584
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- F307203-1 (NY)
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
11 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
11 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 11 | $48 |
Typical Medicare-allowed amounts for these services range $48–$48 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-02-27
- Last updated
- 2015-02-27
Frequently asked questions
- What is Jillian Walker's NPI number?
- Jillian Walker's National Provider Identifier (NPI) is 1588056584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jillian Walker's specialty?
- Jillian Walker is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jillian Walker located?
- Jillian Walker's practice location on file with NPPES is 800 Woodfield Rd, West Hempstead, NY 11552-3827.
- What is Jillian Walker's phone number?
- The practice phone number listed in the NPPES registry for Jillian Walker is (516) 608-2100.
- Does Jillian Walker accept Medicare?
- Jillian Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jillian Walker's NPI active?
- Yes — Jillian Walker's NPI (1588056584) is active in the NPPES registry as of the last update on 2015-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.