Melissa Irwin
NPI 1891564555 · Psychiatric/Mental Health Nurse Practitioner · Poquoson, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Irwin is a Psychiatric/Mental Health Nurse Practitioner provider in Poquoson, VA (NPI 1891564555).
Provider details
- NPI number
- 1891564555
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0024189073 (VA)
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
2 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
218 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 95 | $88 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 76 | $160 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 47 | $104 |
Typical Medicare-allowed amounts for these services range $88–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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) |
|---|---|
| Sertraline Hcl | 33 |
| Risperidone | 28 |
| Clozapine | 27 |
| Brexpiprazolebrand: Rexulti | 24 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 23 |
| Quetiapine Fumarate | 19 |
| Escitalopram Oxalate | 15 |
| Propranolol Hcl | 13 |
| Trazodone Hcl | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (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
- 2023-12-21
- Last updated
- 2023-12-21
- Certified
- 2023-12-21
Frequently asked questions
- What is Melissa Irwin's NPI number?
- Melissa Irwin's National Provider Identifier (NPI) is 1891564555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Irwin's specialty?
- Melissa Irwin is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Melissa Irwin located?
- Melissa Irwin's practice location on file with NPPES is 20 Thomas Dr, Poquoson, VA 23662-1722.
- What is Melissa Irwin's phone number?
- The practice phone number listed in the NPPES registry for Melissa Irwin is (276) 229-7351.
- Does Melissa Irwin accept Medicare?
- Melissa Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Irwin's NPI active?
- Yes — Melissa Irwin's NPI (1891564555) is active in the NPPES registry as of the last update on 2023-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.