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

JESSICA L RUIZ MD
NPI 1720583669
Pediatrics - Pediatric Endocrinology in Palo Alto, CA

Active since March 23, 2018PECOS Enrolled
453 QUARRY RD, PALO ALTO, CA 94304(650) 721-1811 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 30, 2026, May 2, 2024, Mar 23, 2018 (3 updates tracked since 2018).

About Jessica L Ruiz Md NPPES

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

JESSICA L RUIZ MD (NPI 1720583669) is an individual pediatric endocrinology provider in Palo Alto, California, licensed in California (A211300) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720583669
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameJESSICA L RUIZCredential: MD
Location Address453 QUARRY RDPalo Alto, CA 94304-1419
Mailing Address453 Quarry RdPalo Alto, CA 94304-1419
Phone(650) 721-1811
Sole ProprietorNo
Enumeration DateMarch 23, 2018
Last NPPES UpdateSeptember 30, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2026
✔ NPI 1720583669 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
Licenses✔ Licensed in CA · A211300✔ Licensed in MA · 286811
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
453 QUARRY RD, Palo Alto, CA 94304
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jessica L Ruiz Md 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
$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.

JOY QIYUE HE MD, PHD
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-2300
DHIRAJ JANARDHANA PANGAL
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5575
MEGAN CORN
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 498-7570
EMMA SINGLETON
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 725-6079
EMILY YANG
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-4000
NICOLE GENE NEELEY MD
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (844) 733-2762
DR. KENNETH ROYCE HOLMES MD
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 498-4821
DUNCAN STUART FERGUSON MD
Student in an Organized Health Care Education/Training Program
453 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 498-4821

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 Jessica Ruiz's NPI number?

The NPI number for Jessica Ruiz is 1720583669. It was assigned to this individual provider in the NPPES registry on March 23, 2018.

Where is Jessica Ruiz located?

Jessica Ruiz practices at 453 Quarry Rd, Palo Alto, CA 94304. The listed phone number is (650) 721-1811.

What is Jessica Ruiz's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Jessica Ruiz enrolled in Medicare?

Yes. Jessica Ruiz is registered in the Medicare PECOS enrollment system.

What insurance does Jessica Ruiz accept?

Health plans from Anthem Blue Cross and Blue Shield list Jessica Ruiz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jessica Ruiz was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days 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.