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

MS. Marcella M Petzchen, NP

Individual provider Registered Nurse · NPI 1255393716

MS. Marcella M Petzchen, NP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 1968, 58 years ago. Practices with SSM Health Care Group, a 923-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
58
Licensed in
MO
In the registry since
2006
Specialties on file
4
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

3660 Vista Ave Ste 207
Saint Louis, MO 63110-2540
Phone: (314) 977-6100
Fax: (314) 977-6137
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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 051062 (MO)
Registered Nurse Taxonomy 163W00000X · Licence 051062 (MO)
Primary Care Nurse Practitioner Taxonomy 363LP2300X · Licence 051062 (MO)
Women's Health Nurse Practitioner Taxonomy 363LW0102X · Licence 051062 (MO)

Record details

NPI number1255393716
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedApril 3, 2006
Last updated in NPPESAugust 4, 2025
Certification dateAugust 4, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1968 (58 years in practice)
Group practice Ssm Health Care Group — 923 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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