Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Miss. Mariama Mammie Nixon, DNP, MSN, ANP-BC

Individual provider Adult Health Clinical Nurse Specialist · NPI 1821315904

Miss. Mariama Mammie Nixon, DNP, MSN, ANP-BC is a Nurse Practitioner in Newport News, Virginia. Qualified in 2009, 17 years ago. Practices with Hampton Mental Health Associates, Inc, a 14-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland and Virginia.

Years since qualifying
17
Licensed in
MD, VA
In the registry since
2010
Specialties on file
2
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

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Practice location Address checks out

439 Oriana Rd Ste C
Newport News, VA 23608-3702 Not confirmed with CMS for 11 years — call before visiting
Phone: (757) 234-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 0024168539 (VA)
Adult Health Clinical Nurse Specialist Taxonomy 364SA2200X · Licence AC000765 (MD)

Record details

NPI number1821315904
Entity typeIndividual (Type 1)
GenderFemale
Credentials DNP , MSN , ANP-BC
Sole proprietorNo
NPI enumeratedApril 28, 2010
Last updated in NPPESDecember 29, 2014

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Hampton Mental Health Associates, Inc — 14 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients55
Services billed 222 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

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 $66 3 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.

Colleagues at Hampton Mental Health Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 14 clinicians in the practice; 12 are shown here.