Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Melanie Faith Ondrejko, CRNP

Individual provider Acute Care Nurse Practitioner · NPI 1992265656

Mrs. Melanie Faith Ondrejko, CRNP is a Nurse Practitioner in Frederick, Maryland. Qualified in 2018, 8 years ago. Practices with Hospitalist Medicine Physicians of Maryland-Laurel PC, an 18-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
8
Licensed in
MD
In the registry since
2019
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

501 W 7th St
Frederick, MD 21701
Phone: (240) 575-2526
Fax: (240) 439-8910
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 400 W 7th St, Frederick, MD 21701-4506 — (240) 566-3300
  • 400 W 7th St, Frederick, MD 21701-4506 — (240) 566-3300

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence R211211 (MD)

Record details

NPI number1992265656
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedMarch 20, 2019
Last updated in NPPESJuly 30, 2019

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Hospitalist Medicine Physicians Of Maryland-Laurel Pc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients60
Services billed 73 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hospitalist Medicine Physicians of Maryland-Laurel PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 18 clinicians in the practice; 7 are shown here.

Other providers in Frederick