Catherine Nielsen, APN
Family Nurse Practitioner · Belleville, NJ
Catherine Nielsen, APN is a family nurse practitioner with a practice address in Belleville, New Jersey, and NPI 1245916782, issued on Jun 27, 2023. Check the license (New Jersey 26NJ14866900, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Nielsen
- Credential
- APN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 26NJ14866900 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 36 Newark Ave Ste 300, Belleville, NJ 07109
- Phone
- (973) 759-6896
- Enumerated
- Jun 27, 2023
- Record last updated
- Dec 26, 2023
- Medicaid ID
- 0938998 NJ
- Medicare enrollment
- Enrolled (PECOS I20231130002330); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,881 in New Jersey → Look up another NPI →
Also registered at 36 Newark Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thea Intal, FNP-CFamily Nurse Practitioner1093596744
- Arpita Patel, FNP-CFamily Nurse Practitioner1780084111
- Salem Shihadeh, MDInternal Medicine Physician1073197778
Verify Catherine Nielsen 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 26NJ14866900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average family nurse practitioner in 2024
852 Medicare Part D claims for 178 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Levothyroxine Sodium45 claims
- Metformin Hcl45 claims
- Jardiance39 claims
- Atorvastatin Calcium37 claims
- Trulicity34 claims
- Glimepiride33 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: $22.02
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 99,489 providers of this specialty with any payment received $650.95 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 2 group practices
- Freehold Hospitalists, LLCFreehold, NJ
- Medical Associates OF Englewood PCBelleville, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Nielsen among 3,881 family nurse practitioner records in New Jersey
Catherine Nielsen, APN is one of 3,881 family nurse practitioner records with a practice address in New Jersey. 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 2023, is newer than 70% of them.
- NPI issued2023 · 70% of these records are older, 22% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2019 among the 2,262 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 family nurse practitioner records list a practice address in Belleville
They are 22 of the 561 NPPES records with a practice address in Belleville, and 3,881 family nurse practitioner records in New Jersey.
All 3,881 in New Jersey → Every provider in Belleville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Rita Asiedu, DNP, FNP-CBelleville, NJ 071091457958753
- Ruby Basilio, FNPBelleville, NJ 071091487387593
- Betsy Jean-Louis, FNP-BC, APN-CBelleville, NJ 071091336677640
- Ajay KapoorBelleville, NJ 071091922466341
- Kara Maxsimic, NPBelleville, NJ 071091023585015
- Geoffrey MoituiBelleville, NJ 071091780046789
- Vrinda Nadkarni, MSN, FNP-BCBelleville, NJ 071091740916790
- Nadia Naranjo, NPBelleville, NJ 071091477111839
Common questions
What is Catherine Nielsen, APN's NPI number?
Catherine Nielsen, APN's National Provider Identifier (NPI) is 1245916782, issued on Jun 27, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Nielsen, APN located?
The NPPES record lists a practice address at 36 Newark Ave Ste 300, Belleville, NJ, 07109. Phone: (973) 759-6896. Providers update this record themselves, so call before visiting.
How can I verify Catherine Nielsen, APN's license?
NPPES lists New Jersey license number 26NJ14866900, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Nielsen, APN prescribe under Medicare Part D?
In 2024, Catherine Nielsen, APN had 852 Medicare Part D claims for 178 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.