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MS. MELISSA VIATORI N.P.
NPI 1083937031
Nurse Practitioner in Palo Alto, CA

Active since March 04, 2010PECOS Enrolled
875 BLAKE WILBUR DR, PALO ALTO, CA 94304(650) 498-6000 Get Directions Write a Review

NPPES record last updated: January 21, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Melissa Viatori N.p. NPPES

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

MS. MELISSA VIATORI N.P. (NPI 1083937031) is an individual nurse practitioner in Palo Alto, California, licensed in North Carolina (202570) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083937031
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. MELISSA VIATORICredential: N.P.
Location Address875 BLAKE WILBUR DRPalo Alto, CA 94304-2205
Mailing Address2400 Pratt St, Ste 9000Durham, NC 27705-3976 · (919) 943-5525
Phone(650) 498-6000
Sole ProprietorNo
Enumeration DateMarch 4, 2010
Last NPPES UpdateJanuary 21, 2016
✔ NPI 1083937031 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in NC · 202570
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
875 BLAKE WILBUR DR, Palo Alto, CA 94304
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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)

Ms. Melissa Viatori N.p. 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.

Medicare Billing Reassignment

Medicare enrollment records show Melissa Viatori reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Marshall C. Murrey, MD
2,231 mi
Family Medicine
950 STATE FARM RD, SUITE 300
Boone, NC 28607
  • Reassigned Medicare billing, North Carolina enrollment
  • 7 clinicians in this Medicare group
NPI 1891886222 (828) 264-0550

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

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
132 services101 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
40 services31 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
36 services35 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
28 services28 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
21 services21 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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.

ZACHARY TYE NORMAN MD, MBA
Student in an Organized Health Care Education/Training Program
875 BLAKE WILBUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 724-4750
RACHEL BLAIR
Registered Nurse (Ambulatory Care)
875 BLAKE WILBUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 498-6000
JANE EDNA HUANG MD
Internal Medicine (Medical Oncology)
875 BLAKE WILBUR DR, THORACIC ONCOLOGY, CANCER CENTER
PALO ALTO, CA 94304
Santa Clara County (650) 498-6000
DR. ALLISON YUAN ZHONG MD
Radiology (Radiation Oncology)
875 BLAKE WILBUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 723-6171
HEATHER BERNICE BOULTING ACNPC-AG
Nurse Practitioner
875 BLAKE WILBUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 498-6000
CHARUL SHAH RN
Registered Nurse (Oncology)
875 BLAKE WILBUR DR
PALO ALTO, CA 94304
Santa Clara County (650) 725-1860
SANDY ON PHARMD
Pharmacist
875 BLAKE WILBUR DR, 2ND FLOOR CLINIC G HEMATOLOGY
STANFORD, CA 94304
Santa Clara County (626) 203-3514
CHRISTINA BERG PHARMD
Pharmacist (Oncology)
875 BLAKE WILBUR DR
PALO ALTO, CA 94304
Santa Clara County (360) 567-7386

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 Melissa Viatori's NPI number?

The NPI number for Melissa Viatori is 1083937031. It was assigned to this individual provider in the NPPES registry on March 4, 2010.

Where is Melissa Viatori located?

Melissa Viatori practices at 875 Blake Wilbur Dr, Palo Alto, CA 94304. The listed phone number is (650) 498-6000.

What is Melissa Viatori's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Melissa Viatori enrolled in Medicare?

Yes. Melissa Viatori is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Melissa Viatori's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Viatori reassigns Medicare benefits to Marshall C. Murrey, MD (Boone, NC). 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 Melissa Viatori'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 Melissa Viatori was last updated on January 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.