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

MS. Melissa Ann Ritzen, NP-C

Individual provider Family Nurse Practitioner · NPI 1770933780

MS. Melissa Ann Ritzen, NP-C is a Family Nurse Practitioner in Tucson, Arizona. Works from 2 locations. Licensed in Arizona.

Licensed in
AZ
In the registry since
2016
Specialties on file
2
What do these letters mean?
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

Practice location Address checks out

5983 E Grant Rd Ste 101
Tucson, AZ 85712-2366
Phone: (520) 420-1966
Fax: (866) 733-1907
Show map & directions

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

Additional practice locations (1)

  • 15883 N Oracle Rd Ste 155, Tucson, AZ 85739-9117 — (520) 420-1966

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP8795 (AZ)
Registered Nurse Taxonomy 163W00000X · Licence RN140989 (AZ)

Record details

NPI number1770933780
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP-C
Sole proprietorNo
NPI enumeratedJune 21, 2016
Last updated in NPPESAugust 9, 2026
Certification dateAugust 9, 2026

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