Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIANA STONE NP-C
NPI 1003394396
Family Medicine in Boston, MA

Active since July 30, 2018PECOS Enrolled

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Aug 25, 2026, Jul 30, 2018 (2 updates tracked since 2018).

About Mariana Stone Np-c NPPES

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

MARIANA STONE NP-C (NPI 1003394396) is an individual family medicine provider in Boston, Massachusetts, licensed in Massachusetts (F07181373) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS and maintains a secondary practice location in Arlington.

NPPES Registry Identity

NPI1003394396
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMARIANA STONECredential: NP-C
Location Address53 STATE STBoston, MA 02109-2820
Mailing Address53 State StBoston, MA 02109-2820 · (415) 658-6791 · Fax (415) 252-7176
Sole ProprietorNo
Enumeration DateJuly 30, 2018
Last NPPES UpdateAugust 25, 20262 updates tracked since enumeration
NPPES CertifiedAugust 25, 2026
✔ NPI 1003394396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MA · F07181373
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
53 STATE ST, Boston, MA 02109

Secondary Practice Location 1

Location 152A Montague StArlington, MA 02474-2508 · Phone (207) 749-4138

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mariana Stone Np-c 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02109 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 8

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

Physician Assistant
53 STATE ST
BOSTON, MA 02109
Nurse Practitioner (Family)
53 STATE ST
BOSTON, MA 02109
Psychologist (Clinical)
53 STATE ST
BOSTON, MA 02109
Physician Assistant
53 STATE ST
BOSTON, MA 02109
Social Worker (Clinical)
53 STATE ST
BOSTON, MA 02109
Internal Medicine
53 STATE ST
BOSTON, MA 02109
Nurse Practitioner (Primary Care)
53 STATE ST
BOSTON, MA 02109
Nurse Practitioner (Family)
53 STATE ST
BOSTON, MA 02109

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 Mariana Stone's NPI number?

The NPI number for Mariana Stone is 1003394396. It was assigned to this individual provider in the NPPES registry on July 30, 2018.

Where is Mariana Stone located?

Mariana Stone practices at 53 State St, Boston, MA 02109. The listed phone number is (888) 663-6331.

What is Mariana Stone's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mariana Stone enrolled in Medicare?

Yes. Mariana Stone is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mariana Stone was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days 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.