Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. KATHERINE MARNE KOHLSAAT
NPI 1255119855
Physician Assistant in Palo Alto, CA

Q: What is Katherine Kohlsaat's NPI number?

The NPI number for Katherine Kohlsaat is 1255119855. It was assigned to this individual provider in the NPPES registry on September 15, 2023.

Q: What is Katherine Kohlsaat's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Active since September 15, 2023PECOS Enrolled

725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Ms. Katherine Marne Kohlsaat NPPES

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

MS. KATHERINE MARNE KOHLSAAT (NPI 1255119855) is an individual physician assistant in Palo Alto, California, licensed in California (PA68503) and active in the NPI registry since September 2023. She is enrolled in Medicare PECOS, maintains a secondary practice location in Stanford, and is a graduate of Stanford University School Of Medicine (2026).

NPPES Registry Identity

NPI1255119855

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameMS. KATHERINE MARNE KOHLSAAT

Location Address725 WELCH RDPalo Alto, CA 94304-1601

Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (781) 786-1481

Phone(650) 497-8000

Sole ProprietorNo

Medical School CMSStanford University School Of MedicineGraduated 2026

Enumeration DateSeptember 15, 2023

Last NPPES UpdateAugust 13, 2026

NPPES CertifiedAugust 13, 2026

✔ NPI 1255119855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in CA · PA68503

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

725 WELCH RD, Palo Alto, CA 94304

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Secondary Practice Location 1

Location 1291 Campus DrStanford, CA 94305-5101 · Phone (781) 786-1481

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Katherine Marne Kohlsaat is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4284108275

PECOS Enrollment IDI20260630004331

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 94304 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

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

Most-billed visit code 99213

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.

EIRI INENAGA MS, OTR/L

Occupational Therapist (Pediatrics)