DANIELLA ALVIAR MD
NPI 1497381396
Obstetrics & Gynecology in Brentwood, NY

Active since March 23, 2020PECOS EnrolledAccepts Medicare Assignment
1869 BRENTWOOD RD, BRENTWOOD, NY 11717(631) 416-5480(631) 994-2900 Get Directions Write a Review

NPPES record last updated: January 22, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Daniella Alviar Md NPPES

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

DANIELLA ALVIAR MD (NPI 1497381396) is an individual obstetrics & gynecology provider in Brentwood, New York, licensed in New York (330338) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and maintains a secondary practice location in Bay Shore.

NPPES Registry Identity

NPI1497381396
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDANIELLA ALVIARCredential: MD
Location Address1869 BRENTWOOD RDBrentwood, NY 11717-4625
Mailing Address1869 Brentwood RdBrentwood, NY 11717-4625 · (631) 041-6054 · Fax (631) 994-2900
Fax(631) 994-2900
Sole ProprietorNo
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 2019
Enumeration DateMarch 23, 2020
Last NPPES UpdateJanuary 22, 2025
NPPES CertifiedJanuary 22, 2025
✔ NPI 1497381396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in NY · 330338
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1869 BRENTWOOD RD, Brentwood, NY 11717

Secondary Practice Location 1

Location 1301 E Main StBay Shore, NY 11706-8458 · Phone (631) 968-3322 · Fax (631) 968-3728

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Daniella Alviar Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880124486
PECOS Enrollment IDI20250212001445
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

2

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

Urology
1010 NORTHERN BLVD STE 110
Great Neck, NY 11021
  • Reassigned Medicare billing, New York enrollment
  • 9,353 clinicians in this Medicare group
Adult Day Care
1543-1545 INWOOD AVENUE, HUDSON RIVER HEALTHCARE ADULT DAY PROGRAM
Bronx, NY 10452
  • Reassigned Medicare billing, New York enrollment
  • 683 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Peconic Bay Medical Center

Acute Care Hospitals · Riverhead, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330107
Location1 Heros WayRiverhead, NY 11901 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11717 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
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.

Nurse Practitioner (Adult Health)
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Nurse Practitioner (Psychiatric/Mental Health)
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Clinic/Center (Public Health, State or Local)
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Family Medicine
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Physician Assistant
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Midwife
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Pediatrics
1869 BRENTWOOD RD
BRENTWOOD, NY 11717
Family Medicine
1869 BRENTWOOD RD
BRENTWOOD, NY 11717

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 Daniella Alviar's NPI number?

The NPI number for Daniella Alviar is 1497381396. It was assigned to this individual provider in the NPPES registry on March 23, 2020.

Where is Daniella Alviar located?

Daniella Alviar practices at 1869 Brentwood Rd, Brentwood, NY 11717. The listed phone number is (631) 416-5480.

What is Daniella Alviar's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Daniella Alviar enrolled in Medicare?

Yes. Daniella Alviar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Daniella Alviar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniella Alviar reassigns Medicare benefits to 2 organizations: North Shore-Lij Medical PC (Great Neck, NY) and Sun River Health Inc (Bronx, NY). 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 Daniella Alviar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Daniella Alviar affiliated with any hospitals?

According to CMS data, Daniella Alviar is affiliated with Peconic Bay Medical Center.

When was this NPI record last updated?

The NPPES record for Daniella Alviar was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.