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

Maria Teresa Elizalde, CRNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1538120373

Maria Teresa Elizalde, CRNP is a Nurse Practitioner in Boonsboro, Maryland. Qualified in 1997, 29 years ago. Practices with Meritus Medical Center Inc, a 746-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
29
Licensed in
MD
In the registry since
2006
Specialties on file
2
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 →

Practice location Address checks out

9 Saint Paul St Ste 3
Boonsboro, MD 21713-1334
Phone: (301) 432-6897
Fax: (301) 432-6298
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence R100650 (MD)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence R100650 (MD)

Record details

NPI number1538120373
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorYes
NPI enumeratedMarch 31, 2006
Last updated in NPPESDecember 1, 2023
Certification dateDecember 1, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Meritus Medical Center Inc — 746 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 patients284
Services billed 1,169 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $187 9 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Meritus Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 746 clinicians in the practice; 12 are shown here.

Other providers in Boonsboro