JULIE LYNN WILLIAMSON DO
NPI 1194862532
Anesthesiology - Pediatric Anesthesiology in Palo Alto, CA

Q: What is Julie Williamson's NPI number?

The NPI number for Julie Williamson is 1194862532. It was assigned to this individual provider in the NPPES registry on February 1, 2007. The provider is also known as Dr. Julie Lynn Rosen D.O..

Q: What is Julie Williamson's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Q: When was this NPI record last updated?

The NPPES record for Julie Williamson was last updated on April 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 01, 2007PECOS Enrolled

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

NPPES record last updated: April 11, 2024. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Apr 11, 2024, Dec 21, 2021, May 26, 2021 (3 updates tracked since 2021).

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About Julie Lynn Williamson Do NPPES

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

JULIE LYNN WILLIAMSON DO (NPI 1194862532) is an individual pediatric anesthesiology provider in Palo Alto, California, licensed in California (20A18815) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194862532

Entity TypeIndividualFemale

Primary Taxonomy207LP3000X

Provider Legal NameJULIE LYNN WILLIAMSONCredential: DO

Location Address725 WELCH RDPalo Alto, CA 94304-1601

Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000

Phone(650) 497-8000

Sole ProprietorNo

Enumeration DateFebruary 1, 2007

Last NPPES UpdateApril 11, 20243 updates tracked since enumeration

NPPES CertifiedApril 11, 2024

✔ NPI 1194862532 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAnesthesiology · Pediatric AnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207LP3000X

License✔ Licensed in CA · 20A18815

Definition

An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy.

Also ListedAnesthesiologyTaxonomy 207L00000X · License 20A18815 (CA)

Also ListedPediatrics · Pediatric Critical Care MedicineTaxonomy 2080P0203X · License 20A18815 (CA)

725 WELCH RD, Palo Alto, CA 94304

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Other Names 1

Former Name (1)Dr. Julie Lynn Rosen D.o.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Julie Lynn Williamson Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

$156.67 typical visit price

range $70.37 – $206.04

Typical copayment $39.16 (range $17.59 – $51.51)

Most-billed visit code 99204

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)