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Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.

MS. RUTH A. ARMSTRONG, NP

Active

MS. RUTH A. ARMSTRONG, NP is a Obstetrics & Gynecology Nurse Practitioner healthcare provider located in SAN FRANCISCO, California. NPI 1558419291 is currently active in the NPPES registry. Verify at CMS.

Obstetrics & Gynecology Nurse Practitioner · SAN FRANCISCO, CA

Registration Details

NPI Number
1558419291
Provider Type
Individual
Gender
Female
NPI Issued
Jan 8, 2007 (19.635322413509 yrs)
Last Updated
Sep 11, 2025
Licenses
RN320167 (CA)
NPF11049 (CA)

Practice Information

Address
2727 MARIPOSA ST STE 100
RAPE TREATMENT CENTER
SAN FRANCISCO, CA, 941101400
Browse CA providers · Browse ZIP 94110
Phone
4154373000
Fax
4154373050

Other Obstetrics & Gynecology Nurse Practitioner Providers in SAN FRANCISCO, CA

Name Credential NPI
MICHELLE FP JOHNSTON CNM 1710916861
MARGARET SIDNEY HUTCHISON CNM 1841220324
MS. JEAN PERRY NP 1588696397
SUSAN JOY LEIBEL CNM 1083630180
HOLLY POWELL KENNEDY CNM 1619993714
MS. SUSANNAH S. EWING MSN 1013926435
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.