Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Rachel Carmela Marrero, CRNP

Individual provider Nurse Practitioner · NPI 1043988900

Rachel Carmela Marrero, CRNP is a Nurse Practitioner in Hummelstown, Pennsylvania. Qualified in 2021, 5 years ago. Practices with Pinnacle Health Medical Services, a 1,026-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
5
Licensed in
PA
In the registry since
2021
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

See every abbreviation used in this directory →

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Practice location Address checks out

8105 Adams Dr Ste B
Hummelstown, PA 17036-8625
Phone: (717) 482-8115
Fax: (717) 482-8364
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 1 Dunwoody Dr, Carlisle, PA 17015-9565 — (717) 988-9015
  • 1824 Good Hope Rd, Enola, PA 17025-1233 — (717) 988-9015
  • 121 Towne Square Dr Ste 303, Hershey, PA 17033-9440 — (717) 482-8115
  • 3 Walnut St Ste 100, Lemoyne, PA 17043-1168 — (717) 482-8115

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence SP024010 (PA)

Record details

NPI number1043988900
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedSeptember 3, 2021
Last updated in NPPESJanuary 14, 2026
Certification dateJanuary 14, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Pinnacle Health Medical Services — 1026 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients21
Services billed 43 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Pinnacle Health Medical Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1026 clinicians in the practice; 12 are shown here.

Other providers in Hummelstown