Nadia Harrigan, APRN
NPI 1831865898 · Psychiatric/Mental Health Nurse Practitioner · Laconia, NH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nadia Harrigan, APRN is a Psychiatric/Mental Health Nurse Practitioner provider in Laconia, NH (NPI 1831865898).
Provider details
- NPI number
- 1831865898
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 066778-23 (NH)
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
4 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
688 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 241 | $81 |
| Psychotherapy, 1 Hour90837 | 126 | $111 |
| Psychotherapy, 1 Hour90837 | 98 | $126 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 90 | $100 |
| Psychotherapy, 45 Minutes90834 | 51 | $84 |
| Psychotherapy, 30 Minutes90832 | 37 | $64 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 248 | 40 |
| Buspirone Hcl | 218 | 25 |
| Prazosin Hcl | 174 | 14 |
| Bupropion Hclbrand: Bupropion Xl | 170 | 25 |
| Fluoxetine Hcl | 153 | 16 |
| Clonazepam | 153 | 20 |
| Aripiprazole | 145 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$88 across 4 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
- 2021-08-19
- Last updated
- 2021-08-19
- Certified
- 2021-08-19
Frequently asked questions
- What is Nadia Harrigan's NPI number?
- Nadia Harrigan's National Provider Identifier (NPI) is 1831865898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nadia Harrigan's specialty?
- Nadia Harrigan is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nadia Harrigan located?
- Nadia Harrigan's practice location on file with NPPES is 40 Beacon St E, Laconia, NH 03246-3437.
- What is Nadia Harrigan's phone number?
- The practice phone number listed in the NPPES registry for Nadia Harrigan is (603) 524-1100.
- Does Nadia Harrigan accept Medicare?
- Nadia Harrigan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nadia Harrigan's NPI active?
- Yes — Nadia Harrigan's NPI (1831865898) is active in the NPPES registry as of the last update on 2021-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.