Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Twyila D. Lay, NP, MSN, RN

Individual provider Medical-Surgical Registered Nurse · NPI 1770503757

MS. Twyila D. Lay, NP, MSN, RN is a Medical-Surgical Registered Nurse in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
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

1001 Potrero Ave
San Francisco, CA 94110-3518
Phone: (415) 206-3219
Fax: (415) 502-4985
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence NPF7643 (CA)
Medical-Surgical Registered Nurse Taxonomy 163WM0705X · Licence RN451171 (CA)

Record details

NPI number1770503757
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP , MSN , RN
Sole proprietorNo
NPI enumeratedJuly 20, 2006
Last updated in NPPESJanuary 12, 2012

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