Eileen Simpson, CRNP
NPI 1912423419 · Family Nurse Practitioner · King of Prussia, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eileen Simpson, CRNP is a Family Nurse Practitioner provider in King of Prussia, PA (NPI 1912423419).
Provider details
- NPI number
- 1912423419
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- SP017906 (PA)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
399 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 | 255 | $100 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 93 | $74 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $146 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 21 | $97 |
Typical Medicare-allowed amounts for these services range $74–$146 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 81 | 81 |
| Azithromycin | 78 | 77 |
| Methylprednisolone | 56 | 55 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 54 | 54 |
| Prednisone | 41 | 40 |
| Fluticasone Propionate | 39 | 34 |
| Doxycycline Hyclate | 34 | 34 |
Practice location
Mailing address
Additional practice locations (1)
- 870 E Baltimore PikeKennett Square, PA 19348-1842Phone: (610) 444-9081
Registry dates
- Enumerated
- 2017-08-16
- Last updated
- 2021-01-06
- Certified
- 2021-01-06
Frequently asked questions
- What is Eileen Simpson's NPI number?
- Eileen Simpson's National Provider Identifier (NPI) is 1912423419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eileen Simpson's specialty?
- Eileen Simpson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Eileen Simpson located?
- Eileen Simpson's practice location on file with NPPES is 700 S Henderson Rd Ste 308c, King of Prussia, PA 19406-4206.
- What is Eileen Simpson's phone number?
- The practice phone number listed in the NPPES registry for Eileen Simpson is (267) 699-3900.
- Does Eileen Simpson accept Medicare?
- Eileen Simpson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eileen Simpson's NPI active?
- Yes — Eileen Simpson's NPI (1912423419) is active in the NPPES registry as of the last update on 2021-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.