Marissa Lynn Zingg, APRN
Family Nurse Practitioner · Brookline, MA
At a glance
1101 Beacon Street, Brookline, MA 02446-5587
NPPES record updated Jul 8, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1101 Beacon Street Suite 1EBrookline, MA 02446-5587
Additional reported practice locations
366 Shrewsbury StWorcester, MA 016044647
Phone: 5085952700
Fax: 7742215136 1101 Beacon Street
Suite 1W
Brookline, MA 024465587
Phone: 6177312390
Fax: 6177311283 28 Andover Street
Suite 1R
Andover, MA 018104888
Phone: 9784759230
Fax: 9784759231
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2022
- CMS specialties
- Nurse Practitioner
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Family Nurse Practitioner
- Taxonomy code
- 363LF0000X
- Enumeration date
- Mar 27, 2023
- Record updated
- Jul 8, 2026
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- MARISSA LYNN ASHCRAFT
- Reported credentials
- APRN
Reported taxonomies and licenses
363LF0000X · Primary
License reported: RN2300751 MA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1101 Beacon StreetSuite 1E
Brookline, MA 02446-5587
- Phone
- (617) 731-2390
- Fax
- (617) 731-1283
Mailing address
4700 EXCHANGE COURTSUITE 110
BOCA RATON, FL 334314450
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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