Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mr. Zachary Brian Wasserman, MSN, CRNP, FNP-C

Individual provider Family Nurse Practitioner · NPI 1598438210

Mr. Zachary Brian Wasserman, MSN, CRNP, FNP-C is a Nurse Practitioner in Baltimore, Maryland. Qualified in 2021, 5 years ago. Practices with UMMS Ambulatory Care LLC, a 53-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
5
Licensed in
MD
In the registry since
2021
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

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Practice location Address checks out

711 W 40th St Ste 173
Baltimore, MD 21211-2147
Phone: (443) 961-1221
Fax: (443) 965-9780
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence R227875 (MD)

Record details

NPI number1598438210
Entity typeIndividual (Type 1)
GenderMale
Credentials MSN , CRNP , FNP-C
Sole proprietorNo
NPI enumeratedJuly 28, 2021
Last updated in NPPESMarch 25, 2022
Certification dateMarch 25, 2022

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 Umms Ambulatory Care Llc — 53 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients333
Services billed 745 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 UMMS Ambulatory Care LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 53 clinicians in the practice; 12 are shown here.

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