Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Marian Ann Mattern, CNP, PMHNP, RN

Individual provider Registered Nurse · NPI 1366799082

Mrs. Marian Ann Mattern, CNP, PMHNP, RN is a Nurse Practitioner in Youngstown, Ohio. Qualified in 2020, 6 years ago. Practices with H O P E Counseling and Addiction Services LLC, a 2-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Ohio and Pennsylvania.

Years since qualifying
6
Licensed in
OH, PA
In the registry since
2012
Specialties on file
9
What do these letters mean?
CNP — Certified Nurse Practitioner
A certified nurse practitioner.
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

550 W Chalmers Ave
Youngstown, OH 44511-1576
Phone: (330) 797-0070
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 320 High St Ne, Warren, OH 44481-1222 — (330) 797-0070
  • 726 Wick Ave, Youngstown, OH 44505-2827 — (330) 747-9551
  • 527 N Meridian Rd, Youngstown, OH 44509-1227 — (330) 797-0070
  • 8255 South Ave, Youngstown, OH 44512-6483 — (330) 797-0070

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence APRN.CNP.13427 (OH)
Registered Nurse Taxonomy 163W00000X · Licence RN757290 (PA)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence APRN.CNP.13427 (OH)
Addiction Psychiatry Physician Taxonomy 2084P0802X · Licence COA13427NP (OH)
Nurse Practitioner Taxonomy 363L00000X · Licence COA.13427.NP (OH)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence SP026529 (PA)
Registered Nurse Taxonomy 163W00000X · Licence RN.330047 (OH)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence APRN.CNP.13427 (OH)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence SP026528 (PA)

Record details

NPI number1366799082
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNP , PMHNP , RN
Sole proprietorNo
NPI enumeratedAugust 13, 2012
Last updated in NPPESJuly 31, 2026
Certification dateJuly 31, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice H O P E Counseling And Addiction Services Llc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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