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DIANE TOULAN MD
NPI 1871776765
Pediatrics - Pediatric Endocrinology in Palo Alto, CA

Active since December 13, 2007PECOS Enrolled
795 EL CAMINO REAL, PALO ALTO, CA 94301(650) 853-6558 Get Directions Write a Review

NPPES record last updated: February 7, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 7, 2024, May 27, 2020 (2 updates tracked since 2020).

About Diane Toulan Md NPPES

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

DIANE TOULAN MD (NPI 1871776765) is an individual pediatric endocrinology provider in Palo Alto, California, licensed in California (A88187) and active in the NPI registry since December 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871776765
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameDIANE TOULANCredential: MD
Location Address795 EL CAMINO REALPalo Alto, CA 94301-2302
Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (650) 853-4931
Phone(650) 853-6558
Sole ProprietorNo
Enumeration DateDecember 13, 2007
Last NPPES UpdateFebruary 7, 20242 updates tracked since enumeration
NPPES CertifiedFebruary 7, 2024
✔ NPI 1871776765 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in CA · A88187
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.
795 EL CAMINO REAL, Palo Alto, CA 94301
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Other Names 1

Former Name (1)Diane Suchet

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane Toulan 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.

Medicare Billing Reassignment

Medicare enrollment records show Diane Toulan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
Same address
Multi-Specialty
795 EL CAMINO REAL
Palo Alto, CA 94301
  • Reassigned Medicare billing, California enrollment
  • 4,479 clinicians in this Medicare group
NPI 1013950807 (650) 321-4121

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94301 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.

DR. SHIRA BETH LIPTON M.D.
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2982
DR. KATHERINE A KWIATKOWSKI MD
Psychiatry & Neurology (Psychiatry)
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2904
MS. HEATHER HUGHES ROSE PT
Physical Therapist
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (707) 280-2417
CRYSTAL TSAI MS, RD
Dietitian, Registered
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2961
RUTH ROTHMAN MD
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-4865
WINONA TAN M.D.
Obstetrics & Gynecology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2917
SHERRY HUANG MD
Family Medicine
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2984
DR. JULIA MCKENZIE GABHART M.D.
Pediatrics
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 321-4121

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 Diane Toulan's NPI number?

The NPI number for Diane Toulan is 1871776765. It was assigned to this individual provider in the NPPES registry on December 13, 2007. The provider is also known as Diane Suchet.

Where is Diane Toulan located?

Diane Toulan practices at 795 El Camino Real, Palo Alto, CA 94301. The listed phone number is (650) 853-6558.

What is Diane Toulan's specialty?

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

Is Diane Toulan enrolled in Medicare?

Yes. Diane Toulan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Toulan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Toulan reassigns Medicare benefits to Sutter Bay Medical Foundation (Palo Alto, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diane Toulan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Diane Toulan was last updated on February 7, 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.