Melissa Viatori, N.P.
NPI 1083937031 · Nurse Practitioner · Palo Alto, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Viatori, N.P. is a Nurse Practitioner provider in Palo Alto, CA (NPI 1083937031).
Provider details
- NPI number
- 1083937031
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 202570 (NC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
285 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $70 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $101 |
| Advance Care Planning, First 30 Minutes99497 | 36 | $66 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 28 | $103 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 21 | $129 |
| Automated Urinalysis Test81003 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 42 | 12 |
| Amlodipine Besylate | 37 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | 30 |
| Rosuvastatin Calcium | 25 | — |
| Azithromycin | 24 | 22 |
| Ciprofloxacin Hcl | 24 | 24 |
| Losartan Potassium | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$78 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-04
- Last updated
- 2016-01-21
Frequently asked questions
- What is Melissa Viatori's NPI number?
- Melissa Viatori's National Provider Identifier (NPI) is 1083937031, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Viatori's specialty?
- Melissa Viatori is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Melissa Viatori located?
- Melissa Viatori's practice location on file with NPPES is 875 Blake Wilbur Dr, Palo Alto, CA 94304-2205.
- What is Melissa Viatori's phone number?
- The practice phone number listed in the NPPES registry for Melissa Viatori is (650) 498-6000.
- Does Melissa Viatori accept Medicare?
- Melissa Viatori is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Viatori's NPI active?
- Yes — Melissa Viatori's NPI (1083937031) is active in the NPPES registry as of the last update on 2016-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.