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VIVIEN BAZARKO MD
NPI 1295485381
Pediatrics in San Francisco, CA

Active since March 24, 2022PECOS Enrolled
550 16TH ST FL 4, SAN FRANCISCO, CA 94143(415) 476-5001 Get Directions Write a Review

NPPES record last updated: October 13, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Vivien Bazarko Md NPPES

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

VIVIEN BAZARKO MD (NPI 1295485381) is an individual pediatrics provider in San Francisco, California, licensed in California (A190971) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1295485381
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameVIVIEN BAZARKOCredential: MD
Location Address550 16TH ST FL 4San Francisco, CA 94143-2549
Mailing Address550 16th St Fl 4San Francisco, CA 94143-2549
Phone(415) 476-5001
Sole ProprietorNo
Enumeration DateMarch 24, 2022
Last NPPES UpdateOctober 13, 2025
NPPES CertifiedOctober 13, 2025
✔ NPI 1295485381 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A190971
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.
550 16TH ST FL 4, San Francisco, CA 94143
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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)

Vivien Bazarko 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 Reassignments

3

Medicare enrollment records show Vivien Bazarko reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ucsf Pediatrics Associates
3.7 mi
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
NPI 1376614016 (415) 353-2000
University Of California San Francisco
3.8 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
3.8 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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 94143 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.

ALYSSA TOSHIMI GO
Pediatrics
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ZACHARY EMMANUEL WAN SANDOVAL MD, MPH
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
RULAN YI MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ELIZABETH HALE MONTESANO SCHEIBE MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ISHAAN AMARJITSINGH SANGWAN
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
MARY ROLFES STUDENT
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-6245
EVELYN MARIA HOOVER
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
VALERIE JUDITH FONG-SILVA MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001

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 Vivien Bazarko's NPI number?

The NPI number for Vivien Bazarko is 1295485381. It was assigned to this individual provider in the NPPES registry on March 24, 2022.

Where is Vivien Bazarko located?

Vivien Bazarko practices at 550 16th St Fl 4, San Francisco, CA 94143. The listed phone number is (415) 476-5001.

What is Vivien Bazarko's specialty?

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

Is Vivien Bazarko enrolled in Medicare?

Yes. Vivien Bazarko is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Vivien Bazarko's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vivien Bazarko reassigns Medicare benefits to 3 organizations: Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). Each 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 Vivien Bazarko'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 Vivien Bazarko was last updated on October 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.