KAREN YI MUELLER NP
NPI 1124321260
Nurse Practitioner in Stanford, CA

Active since December 13, 2010PECOS EnrolledAccepts Medicare Assignment
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: April 7, 2023. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Karen Yi Mueller Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN YI MUELLER NP (NPI 1124321260) is an individual nurse practitioner in Stanford, California, licensed in California (20081) and active in the NPI registry since December 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2000).

NPPES Registry Identity

NPI1124321260
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameKAREN YI MUELLERCredential: NP
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateDecember 13, 2010
Last NPPES UpdateApril 7, 2023
NPPES CertifiedApril 7, 2023
NPI 1124321260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
Licenses Licensed in CA · 20081 Licensed in UT · 8383834
Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedSpecialistTaxonomy 174400000X · License 20081 (CA)
300 PASTEUR DR, Stanford, CA 94305

Other Names 1

Former Name (1)Ms. Karen Juan

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Karen Yi Mueller Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234456633
PECOS Enrollment IDI20190306000512
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Emergency Medicine
300 PASTEUR DR, H3200, M/C 5230
PALO ALTO, CA 94305
Anesthesiology
300 PASTEUR DR
STANFORD, CA 94305
Obstetrics & Gynecology
300 PASTEUR DR
STANFORD, CA 94305
Obstetrics & Gynecology
300 PASTEUR DR
STANFORD, CA 94305
Nurse Practitioner
300 PASTEUR DR, SUMC - PEDS PHYSICIAN BILLING MC:5530
PALO ALTO, CA 94305
Anesthesiology
300 PASTEUR DR
STANFORD, CA 94305
Internal Medicine (Endocrinology, Diabetes & Metabolism)
300 PASTEUR DR
STANFORD, CA 94305
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Mueller's NPI number?

The NPI number for Karen Mueller is 1124321260. It was assigned to this individual provider in the NPPES registry on December 13, 2010. The provider is also known as Ms. Karen Juan.

Where is Karen Mueller located?

Karen Mueller practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Karen Mueller's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Karen Mueller enrolled in Medicare?

Yes. Karen Mueller is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Karen Mueller was last updated on April 7, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.