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

Heather Seierstad, NP

Individual provider Family Nurse Practitioner · NPI 1356060172

Heather Seierstad, NP is a Nurse Practitioner in San Marcos, California. Qualified in 2022, 4 years ago. Practices with Ascension Medical Group-Southeast Wisconsin Inc, a 555-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
4
Licensed in
CA
In the registry since
2022
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

417 E Carmel St Ste 200
San Marcos, CA 92078-4368
Phone: (345) 326-7858
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95022361 (CA)

Record details

NPI number1356060172
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 24, 2022
Last updated in NPPESAugust 24, 2022
Certification dateAugust 24, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Ascension Medical Group-Southeast Wisconsin Inc — 555 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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