Waleska Diaz, DNP, FNP-C
NPI 1629653217 · Family Nurse Practitioner · Chatham, NJ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Waleska Diaz, DNP, FNP-C is a Family Nurse Practitioner provider in Chatham, NJ (NPI 1629653217).
Provider details
- NPI number
- 1629653217
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 26NJ01128200 (NJ)
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 tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
599 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 223 | $84 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 126 | $102 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 89 | $35 |
| Urinalysis, Manual Test81002 | 55 | $3 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 40 | $16 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 58 | 58 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 53 | 53 |
| Methylprednisolone | 40 | 39 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 38 | 35 |
| Doxycycline Hyclate | 31 | 31 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 29 | 28 |
| Azithromycin | 23 |
Practice location
Mailing address
Additional practice locations (1)
- 345 Chandler AveRoselle, NJ 07203-1313Phone: (908) 906-4840
Registry dates
- Enumerated
- 2021-03-15
- Last updated
- 2021-06-16
- Certified
- 2021-06-16
Frequently asked questions
- What is Waleska Diaz's NPI number?
- Waleska Diaz's National Provider Identifier (NPI) is 1629653217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Waleska Diaz's specialty?
- Waleska Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Waleska Diaz located?
- Waleska Diaz's practice location on file with NPPES is 471 Main St, Chatham, NJ 07928-2102.
- What is Waleska Diaz's phone number?
- The practice phone number listed in the NPPES registry for Waleska Diaz is (973) 635-4636.
- Does Waleska Diaz accept Medicare?
- Waleska Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Waleska Diaz's NPI active?
- Yes — Waleska Diaz's NPI (1629653217) is active in the NPPES registry as of the last update on 2021-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.