VIVIANA MARIA PLAZ HERNANDEZ MD
NPI 1871297788
Pediatrics in Chelsea, MA

Q: What is Viviana Plaz Hernandez's NPI number?

The NPI number for Viviana Plaz Hernandez is 1871297788. It was assigned to this individual provider in the NPPES registry on March 27, 2023.

Q: What is Viviana Plaz Hernandez's specialty?

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

Active since March 27, 2023PECOS Enrolled

151 EVERETT AVE, CHELSEA, MA 02150(617) 884-8302 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 10, 2026, Jul 6, 2026, Mar 31, 2023 (3 updates tracked since 2023).

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About Viviana Maria Plaz Hernandez Md NPPES

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

VIVIANA MARIA PLAZ HERNANDEZ MD (NPI 1871297788) is an individual pediatrics provider in Chelsea, Massachusetts, licensed in Massachusetts (1027588) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1871297788

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameVIVIANA MARIA PLAZ HERNANDEZCredential: MD

Location Address151 EVERETT AVEChelsea, MA 02150-1812

Mailing Address55 Fruit StBoston, MA 02114-2969 · (954) 939-4412

Phone(617) 884-8302

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMarch 27, 2023

Last NPPES UpdateAugust 10, 20263 updates tracked since enumeration

NPPES CertifiedAugust 10, 2026

✔ NPI 1871297788 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in MA · 1027588

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.

151 EVERETT AVE, Chelsea, MA 02150

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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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Viviana Maria Plaz Hernandez Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7810453057

PECOS Enrollment IDI20260729000434

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

Medicare enrollment records show Viviana Plaz Hernandez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts General Physicians Organization Inc

2.7 mi

Dermatology

55 FRUIT ST, BUL 2
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,360 clinicians in this Medicare group

NPI 1801874573 (617) 724-0287

The General Hospital Corporation

2.7 mi

General Acute Care Hospital

55 FRUIT ST, BULFINCH 360
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,234 clinicians in this Medicare group

NPI 1023049236 (617) 726-2000

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 02150 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

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.

ADRIAN J HERNANDEZ PHD, LP

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