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IAN BARTOS MD
NPI 1841372836
Pediatrics in Livermore, CA

Active since October 19, 2006PECOS Enrolled
3000 LAS POSITAS RD, LIVERMORE, CA 94551(925) 243-4300 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ian Bartos Md NPPES

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

IAN BARTOS MD (NPI 1841372836) is an individual pediatrics provider in Livermore, California, licensed in California (A74967) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841372836
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameIAN BARTOSCredential: MD
Location Address3000 LAS POSITAS RDLivermore, CA 94551
Mailing Address3000 Las Positas RdLivermore, CA 94551-9627 · (925) 243-4300
Phone(925) 243-4300
Sole ProprietorYes
Enumeration DateOctober 19, 2006
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1841372836 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A74967
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
3000 LAS POSITAS RD, Livermore, CA 94551
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ian Bartos 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 Ian Bartos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
28 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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 94551 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

JOSE PINAL
Counselor (Mental Health)
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-2600
THUY NGUYEN
Pharmacist
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-4704
MS. ANDREA E PICCHI MS, NP
Nurse Practitioner (Family)
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-4416
KASHIKA GUPTA MD
Student in an Organized Health Care Education/Training Program
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-2600
ANDREW W. RODGERS MD
Internal Medicine
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-2600
VANDANA JAIN MD
Internal Medicine
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-2600
TIMOTEO BAUTISTA CANIO MD
Internal Medicine
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (925) 243-2600
ARSHIAN MAHAJAN M.D.
Family Medicine
3000 LAS POSITAS RD
LIVERMORE, CA 94551
Alameda County (209) 468-6000

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 Ian Bartos's NPI number?

The NPI number for Ian Bartos is 1841372836. It was assigned to this individual provider in the NPPES registry on October 19, 2006.

Where is Ian Bartos located?

Ian Bartos practices at 3000 Las Positas Rd, Livermore, CA 94551. The listed phone number is (925) 243-4300.

What is Ian Bartos's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Ian Bartos enrolled in Medicare?

Yes. Ian Bartos is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ian Bartos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ian Bartos reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Ian Bartos'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 Ian Bartos was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.