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GRECIA ALVAREZ MD
NPI 1578140448
Student in an Organized Health Care Education/Training Program in Boston, MA

Active since March 26, 2021PECOS Enrolled
800 WASHINGTON ST # 268, BOSTON, MA 02111(617) 636-8920 Get Directions Write a Review

NPPES record last updated: November 8, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 8, 2024, Mar 26, 2021 (2 updates tracked since 2021).

About Grecia Alvarez Md NPPES

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

GRECIA ALVAREZ MD (NPI 1578140448) is an individual student in an organized health care education/training program in Boston, Massachusetts and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1578140448
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameGRECIA ALVAREZCredential: MD
Location Address800 WASHINGTON ST # 268Boston, MA 02111-1552
Mailing Address800 Washington St # 268Boston, MA 02111-1552 · (617) 636-8920
Phone(617) 636-8920
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMarch 26, 2021
Last NPPES UpdateNovember 8, 20242 updates tracked since enumeration
NPPES CertifiedNovember 8, 2024
✔ NPI 1578140448 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
800 WASHINGTON ST # 268, Boston, MA 02111
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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)

Grecia Alvarez Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4688132095
PECOS Enrollment IDI20260817001180
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 Grecia Alvarez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mass General Brigham Medical Group Suburban Massachusetts Inc
9.5 mi
Family Medicine
2014 WASHINGTON STREET
Newton, MA 02462
  • Reassigned Medicare billing, Massachusetts enrollment
  • 992 clinicians in this Medicare group
NPI 1538191218 (617) 243-6262

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

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GABRIELA HEZEL MD
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST # 268
BOSTON, MA 02111
Suffolk County (617) 636-8920
DR. KATE ELIZABETH CAPPETTA DO
Internal Medicine (Endocrinology, Diabetes & Metabolism)
800 WASHINGTON ST # 268
BOSTON, MA 02111
Suffolk County (617) 636-5000
JULIA MACHADO
Nurse Practitioner
800 WASHINGTON ST # 268
BOSTON, MA 02111
Suffolk County (617) 636-5689
DR. JOHN ANTHONY AURORA JR. PHARMD
Pharmacist
800 WASHINGTON ST # 268
BOSTON, MA 02111
Suffolk County (617) 636-3141
JACQUELINE TAM KUNG MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
800 WASHINGTON ST # 268
BOSTON, MA 02111
Suffolk County (617) 636-5689

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 Grecia Alvarez's NPI number?

The NPI number for Grecia Alvarez is 1578140448. It was assigned to this individual provider in the NPPES registry on March 26, 2021.

Where is Grecia Alvarez located?

Grecia Alvarez practices at 800 Washington St # 268, Boston, MA 02111. The listed phone number is (617) 636-8920.

What is Grecia Alvarez's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Grecia Alvarez enrolled in Medicare?

Yes. Grecia Alvarez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Grecia Alvarez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grecia Alvarez reassigns Medicare benefits to Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA). 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 Grecia Alvarez'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 Grecia Alvarez was last updated on November 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.