Rachel A. Chassen, NP
Nurse Practitioner · Elizabeth, NJ
Rachel A. Chassen, NP is a nurse practitioner with a practice address in Elizabeth, New Jersey, and NPI 1396358552, issued on Aug 27, 2020. Check the license (New Jersey 26NJ01338700, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rachel A. Chassen
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 26NJ01338700 NJ
347107 NY
431874 NY
Self-reported in NPPES; status is on the state search - Practice location
- 255 Williamson St., Elizabeth, NJ 07202
- Phone
- (908) 994-5000
- Enumerated
- Aug 27, 2020
- Record last updated
- Jul 2, 2026
- Medicaid ID
- 0897272 NJ
- Medicare enrollment
- Enrolled (PECOS I20230119001135); accepts Medicare assignment
- Entity
- Type 1 · individual
Verify Rachel A. Chassen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 26NJ01338700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nurse practitioner in 2024
23 Medicare Part D claims for 21 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Barnabas Health Medical Group PCElizabeth, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nurse Practitioner providers in New Jersey
There are 1,961 nurse practitioner records in New Jersey.
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Common questions
What is Rachel A. Chassen, NP's NPI number?
Rachel A. Chassen, NP's National Provider Identifier (NPI) is 1396358552, issued on Aug 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Rachel A. Chassen, NP located?
The NPPES record lists a practice address at 255 Williamson St., Elizabeth, NJ, 07202. Phone: (908) 994-5000. Providers update this record themselves, so call before visiting.
How can I verify Rachel A. Chassen, NP's license?
NPPES lists New Jersey license number 26NJ01338700, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Rachel A. Chassen, NP prescribe under Medicare Part D?
In 2024, Rachel A. Chassen, NP had 23 Medicare Part D claims for 21 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Rachel A. Chassen, NP's MIPS final score?
The 2023 MIPS final score is 87.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.