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

MS. Lorraine Rosenthal Seiffert, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1487971537

MS. Lorraine Rosenthal Seiffert, ACNP is a Nurse Practitioner in Alton, Illinois. Qualified in 2008, 18 years ago. Practices with Washington University Physicians in Illinois Inc, a 167-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
18
Licensed in
IL
In the registry since
2010
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

Practice location Address checks out

2 Memorial Dr Ste 101
Alton, IL 62002-6723
Phone: (618) 433-6006
Fax: (833) 301-0853
Show map & directions

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

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 209020856 (IL)

Record details

NPI number1487971537
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedApril 29, 2010
Last updated in NPPESApril 21, 2025
Certification dateJune 12, 2020

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 Washington University Physicians In Illinois Inc — 167 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Alton