Mark Gauthier, APRRN
NPI 1629593355 · Psychiatric/Mental Health Nurse Practitioner · Warwick, RI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gauthier, APRRN is a Psychiatric/Mental Health Nurse Practitioner provider in Warwick, RI (NPI 1629593355).
Provider details
- NPI number
- 1629593355
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRRN
- Sex
- Male
- Sole proprietor
- Yes
- License
- APRN01648 (RI)
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
8 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
173 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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 77 | $49 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 54 | $109 |
| Brief Communication Technology-Based Service, E.g. Virtual Check-In, By a Physician Or Other Qualified Health Care Professional Who Can Report Evaluation and Management Services, Provided to an Established Patient, Not Originating From a Related E/M ServicG2012 | 42 | $12 |
Typical Medicare-allowed amounts for these services range $12–$109 (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 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lamotrigine | 232 | 34 |
| Quetiapine Fumarate | 113 | 16 |
| Lurasidone Hcl | 106 | 11 |
| Clonazepam | 95 | — |
| Lithium Carbonatebrand: Lithium Carbonate Er | 90 | 13 |
| Buspirone Hcl | 83 | 16 |
| Sertraline Hcl | 65 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,552 across 71 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
- 2017-08-03
- Last updated
- 2017-08-03
Frequently asked questions
- What is Mark Gauthier's NPI number?
- Mark Gauthier's National Provider Identifier (NPI) is 1629593355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gauthier's specialty?
- Mark Gauthier is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Gauthier located?
- Mark Gauthier's practice location on file with NPPES is 75 Lambert Lind Hwy, Warwick, RI 02886-1131.
- What is Mark Gauthier's phone number?
- The practice phone number listed in the NPPES registry for Mark Gauthier is (401) 681-4274.
- Does Mark Gauthier accept Medicare?
- Mark Gauthier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gauthier's NPI active?
- Yes — Mark Gauthier's NPI (1629593355) is active in the NPPES registry as of the last update on 2017-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.