Ryan Griffin, R.N., N.P.
NPI 1801188644 · Psychiatric/Mental Health Nurse Practitioner · Lynn, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Griffin, R.N., N.P. is a Psychiatric/Mental Health Nurse Practitioner provider in Lynn, MA (NPI 1801188644).
Provider details
- NPI number
- 1801188644
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N., N.P.
- Sex
- Male
- Sole proprietor
- Yes
- License
- RN2270208 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 273 | 30 |
| Lorazepam | 137 | 23 |
| Mirtazapine | 132 | 25 |
| Gabapentin | 126 | 18 |
| Quetiapine Fumarate | 124 | 20 |
| Trazodone Hcl | 116 | 15 |
| Bupropion Hclbrand: Bupropion Xl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-12
- Last updated
- 2012-10-18
Frequently asked questions
- What is Ryan Griffin's NPI number?
- Ryan Griffin's National Provider Identifier (NPI) is 1801188644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Griffin's specialty?
- Ryan Griffin is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ryan Griffin located?
- Ryan Griffin's practice location on file with NPPES is 269 Union St, Lynn, MA 01901-1314.
- What is Ryan Griffin's phone number?
- The practice phone number listed in the NPPES registry for Ryan Griffin is (781) 477-7222.
- Does Ryan Griffin accept Medicare?
- Ryan Griffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Griffin's NPI active?
- Yes — Ryan Griffin's NPI (1801188644) is active in the NPPES registry as of the last update on 2012-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.