Chandler Diffily, PMHNP
Psychiatric/Mental Health Nurse Practitioner · Haverhill, MA
Chandler Diffily, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Haverhill, Massachusetts, and NPI 1487270112, issued on Jun 18, 2020. Check the license (Massachusetts 2020011123, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chandler Diffily
- Credential
- PMHNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 2020011123 MA
Self-reported in NPPES; status is on the state search - Practice location
- 116 Summer St, Haverhill, MA 01830
- Phone
- (978) 373-7010
- Enumerated
- Jun 18, 2020
- Record last updated
- Sep 6, 2022
- Medicare enrollment
- Enrolled (PECOS I20200930001961); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Also registered at 116 Summer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsey AbateCounselor1043018799
- Andrea AshleyCounselor1497359319
- Jessica BaileyClinical Social Worker1497976344
- Mya BlazejowskiCounselor1093484925
- Andy BonifacioMental Health Counselor1699299263
- Morgan BosworthCounselor1417561465
Verify Chandler Diffily in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 2020011123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
791 Medicare Part D claims for 96 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Clonazepam63 claims
- Lamotrigine51 claims
- Quetiapine Fumarate50 claims
- Sertraline Hcl37 claims
- Lorazepam35 claims
- Hydroxyzine Hcl33 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.
Industry payments in 2024: $633.67
21 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hri Clinics, Inc.Haverhill, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chandler Diffily among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Chandler Diffily, PMHNP 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 2020, is newer than 45% of them.
- NPI issued2020 · 45% of these records are older, 48% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2021 among the 1,309 with a school on file
- Record last updated2022 · 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).
15 psychiatric/mental health nurse practitioner records list a practice address in Haverhill
They are 15 of the 1,185 NPPES records with a practice address in Haverhill, and 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Haverhill → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Danielle Boucher, BC-PMHNPHaverhill, MA 018301730805375
- Lori DiasHaverhill, MA 018301164078713
- Alanna FitzgeraldHaverhill, MA 018301740830009
- Rebecca Harding-Fauth, RN/NPHaverhill, MA 018301265855530
- Alice Karanu, NPHaverhill, MA 018301275932485
- Shannon Main, PMHNP, CNPHaverhill, MA 018301538885686
- Lillian Otokhagua, MSN, APRN, PMHNP-BCHaverhill, MA 018301235922113
- Gerardine PierreHaverhill, MA 018301134975071
Common questions
What is Chandler Diffily, PMHNP's NPI number?
Chandler Diffily, PMHNP's National Provider Identifier (NPI) is 1487270112, issued on Jun 18, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Chandler Diffily, PMHNP located?
The NPPES record lists a practice address at 116 Summer St, Haverhill, MA, 01830. Phone: (978) 373-7010. Providers update this record themselves, so call before visiting.
How can I verify Chandler Diffily, PMHNP's license?
NPPES lists Massachusetts license number 2020011123, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Chandler Diffily, PMHNP prescribe under Medicare Part D?
In 2024, Chandler Diffily, PMHNP had 791 Medicare Part D claims for 96 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.