Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Melissa A Portell, WHNP

Individual provider Women's Health Nurse Practitioner · NPI 1164667838

Mrs. Melissa A Portell, WHNP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2008, 18 years ago. Practices with Mercy Clinic Maternal Fetal Medicine, LLC, a 16-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
18
Licensed in
MO
In the registry since
2008
What do these letters mean?
WHNP — Women's Health Nurse Practitioner
A nurse practitioner specialising in women's health.

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Practice location Address checks out

621 S New Ballas Rd Ste 2007B
Saint Louis, MO 63141-8265
Phone: (314) 991-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Women's Health Nurse Practitioner (primary) Taxonomy 363LW0102X · Licence 155597 (MO)

Record details

NPI number1164667838
Entity typeIndividual (Type 1)
GenderFemale
Credentials WHNP
Sole proprietorNo
NPI enumeratedDecember 10, 2008
Last updated in NPPESOctober 13, 2021
Certification dateOctober 13, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Mercy Clinic Maternal Fetal Medicine, Llc — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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