What is Olivia Demarco's NPI number?

Olivia Demarco's National Provider Identifier (NPI) is 1962019760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Olivia Demarco's specialty?

Olivia Demarco is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Olivia Demarco located?

Olivia Demarco's practice location on file with NPPES is 64 Commerce Ave, Riverhead, NY 11901-4455.

What is Olivia Demarco's phone number?

The practice phone number listed in the NPPES registry for Olivia Demarco is (631) 369-5000.

Does Olivia Demarco accept Medicare?

Olivia Demarco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Olivia Demarco's NPI active?

Yes — Olivia Demarco's NPI (1962019760) is active in the NPPES registry as of the last update on 2020-11-09.

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Olivia Demarco

NPI 1962019760 · Physician Assistant · Riverhead, NY

Olivia Demarco is a Physician Assistant provider in Riverhead, NY (NPI 1962019760).

Provider details

NPI number: 1962019760
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Sex: Female
Sole proprietor: No
License: 025666 (NY)

Practice location

64 Commerce Ave

Riverhead, NY 11901-4455

Phone: (631) 369-5000

Street-level locationGet directions

More NY providers

Mailing address

10 Barnsley Cres

Mount Sinai, NY 11766-2800

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 025666 (NY)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(74/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
6 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
2,222 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Aspiration And/Or Injection of Fluid From Large Joint20610	791	$76
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	478	$125
X-Ray of Knee, 4 Or More Views73564	249	$61
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	213	$89
X-Ray of Hip, 2-3 Views73502	198	$48
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Oxycodone Hcl	191	131
Diclofenac Sodium	137	122
Meloxicam	100	77
Amoxicillin	71	59
Tramadol Hcl	64	55
Methylprednisolone	56	54
Prednisone	25	23
Azithromycin	20

Enumerated: 2020-09-25
Last updated: 2020-11-09
Certified: 2020-11-09

Frequently asked questions

What is Olivia Demarco's NPI number?: Olivia Demarco's National Provider Identifier (NPI) is 1962019760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Olivia Demarco's specialty?: Olivia Demarco is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Olivia Demarco located?: Olivia Demarco's practice location on file with NPPES is 64 Commerce Ave, Riverhead, NY 11901-4455.
What is Olivia Demarco's phone number?: The practice phone number listed in the NPPES registry for Olivia Demarco is (631) 369-5000.
Does Olivia Demarco accept Medicare?: Olivia Demarco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Olivia Demarco's NPI active?: Yes — Olivia Demarco's NPI (1962019760) is active in the NPPES registry as of the last update on 2020-11-09.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)