Ryan J. Griffin, R.N., N.P.
Psychiatric/Mental Health Nurse Practitioner · Lynn, MA
Ryan J. Griffin, R.N., N.P. is a psychiatric/mental health nurse practitioner with a practice address in Lynn, Massachusetts, and NPI 1801188644, issued on May 12, 2011. Check the license (Massachusetts RN2270208, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan J. Griffin
- Credential
- R.N., N.P.
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RN2270208 MA
Self-reported in NPPES; status is on the state search - Practice location
- 269 Union St, Lynn, MA 01901
- Phone
- (781) 477-7222
- Enumerated
- May 12, 2011
- Record last updated
- Oct 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190425000044); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Also registered at 269 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karla Abad, LCSWClinical Social Worker1598577470
- Aishetu AbubakarRegistered Nurse1306467972
- Mario Acosta, RNCommunity Health Registered Nurse1801486469
- Mary Adinkrah, FNPFamily Nurse Practitioner1265716211
- Gabriela Aguiar OrtegaMental Health Counselor1255952982
- Kathleen AhearnRegistered Nurse1801044466
Verify Ryan J. Griffin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2270208Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
2,890 Medicare Part D claims for 154 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Clonazepam273 claims
- Lorazepam137 claims
- Mirtazapine132 claims
- Gabapentin126 claims
- Quetiapine Fumarate124 claims
- Trazodone Hcl116 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- North Shore Community Health IncSalem, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan J. Griffin among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Ryan J. Griffin, R.N., N.P. is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 13% of them.
- NPI issued2011 · 13% of these records are older, 84% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2021 among the 1,309 with a school on file
- Record last updated2012 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 psychiatric/mental health nurse practitioner records list a practice address in Lynn
They are 39 of the 2,030 NPPES records with a practice address in Lynn, and 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Lynn → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Michele Adam, NPLynn, MA 019011295970192
- Marco Belluardo-Crosby, PMHNP-BCLynn, MA 019011801090451
- Therese ChapajongLynn, MA 019011902363138
- Michelle Danforth, PMHNP-BCLynn, MA 019011457735532
- Nicole Gesamondo, PMHNP-BCLynn, MA 019011417493164
- Joanne Giallombardo, APRNLynn, MA 019011316499593
- Catherine GielloLynn, MA 019011255849733
- Rachael Matos, MSN, RN, PMHNP-BCLynn, MA 019011659747665
Common questions
What is Ryan J. Griffin, R.N., N.P.'s NPI number?
Ryan J. Griffin, R.N., N.P.'s National Provider Identifier (NPI) is 1801188644, issued on May 12, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ryan J. Griffin, R.N., N.P. located?
The NPPES record lists a practice address at 269 Union St, Lynn, MA, 01901. Phone: (781) 477-7222. Providers update this record themselves, so call before visiting.
How can I verify Ryan J. Griffin, R.N., N.P.'s license?
NPPES lists Massachusetts license number RN2270208, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Ryan J. Griffin, R.N., N.P. prescribe under Medicare Part D?
In 2024, Ryan J. Griffin, R.N., N.P. had 2,890 Medicare Part D claims for 154 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.