NPPES file of Aug 9, 2026

Marissa Leigh Ott, NP

Addiction (Substance Use Disorder) Registered Nurse · Newton, NJ

Marissa Leigh Ott, NP is an addiction (substance use disorder) registered nurse with a practice address in Newton, New Jersey, and NPI 1245875871, issued on Nov 7, 2019. Check the license (New Jersey 26NR18464300, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245875871
Name
Marissa Leigh Ott
Credential
NP
Primary taxonomy
Addiction (Substance Use Disorder) Registered Nurse 163WA0400X
License numbers
26NR18464300 NJ
26NJ01333700 NJ
Self-reported in NPPES; status is on the state search
Practice location
175 High St, Newton, NJ 07860
Phone
(973) 579-8576
Enumerated
Nov 7, 2019
Record last updated
Aug 2, 2022
Medicare enrollment
Enrolled (PECOS I20230503003596); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 175 High St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. M Adeel Abbasi, MDPsychiatry Physician1316591258
  2. Devina Adalja, MDHospitalist Physician1083296735
  3. Aradhana AggarwalInternal Medicine Physician1003160623
  4. Syed Ahmad, MDHospitalist Physician1366071177
  5. Shumaila Alam, M.D.Family Medicine Physician1851732143
  6. Aditi Amin, MDInternal Medicine Physician1801384193

Verify Marissa Leigh Ott in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
    Search for license 26NR18464300
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

3.6 times the Medicare Part D claims of the average addiction (substance use disorder) registered nurse in 2024

1,336 Medicare Part D claims for 96 beneficiaries, against an average of 371 among the 9 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Marissa Ott1,336
  2. Specialty average371

Most prescribed

  1. Quetiapine Fumarate119 claims
  2. Clonazepam96 claims
  3. Trazodone Hcl89 claims
  4. Mirtazapine67 claims
  5. Sertraline Hcl63 claims
  6. Aripiprazole62 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

  1. Practice Associates Medical GroupNewton, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marissa Leigh Ott among 69 addiction (substance use disorder) registered nurse records in New Jersey

Marissa Leigh Ott, NP is one of 69 addiction (substance use disorder) registered nurse records with a practice address in New Jersey. 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 13% of them.

  • NPI issued2019 · 13% of these records are older, 77% newer
  • In a Medicare fileYes · 1% of these records are
  • In the CMS Doctors and Clinicians fileYes · 1% of these records are
  • Record last updated2022 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WA0400X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction (Substance Use Disorder) Registered Nurse providers in New Jersey

There are 69 addiction (substance use disorder) registered nurse records in New Jersey.

The 8 addiction (substance use disorder) registered nurse records with the nearest ZIP codes

  1. Donna Bondi, RNCliffwood, NJ 077211700571593
  2. Kristina HerediaCliffwood, NJ 077211407638737
  3. Juan MartinezCliffwood, NJ 077211649960758
  4. Katie Ratliff, RNCliffwood, NJ 077211669159679
  5. Irene Reel Rodriguez, RNCliffwood, NJ 077211093405458
  6. Georgette Haitz, RN,CDCherry Hill, NJ 080021982973012
  7. Danielle Quann, RNCherry Hill, NJ 080021255819579
  8. Susan Obrien, RNRed Bank, NJ 077011013405794

Common questions

What is Marissa Leigh Ott, NP's NPI number?

Marissa Leigh Ott, NP's National Provider Identifier (NPI) is 1245875871, issued on Nov 7, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Leigh Ott, NP located?

The NPPES record lists a practice address at 175 High St, Newton, NJ, 07860. Phone: (973) 579-8576. Providers update this record themselves, so call before visiting.

How can I verify Marissa Leigh Ott, NP's license?

NPPES lists New Jersey license number 26NR18464300, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.

How much does Marissa Leigh Ott, NP prescribe under Medicare Part D?

In 2024, Marissa Leigh Ott, NP had 1,336 Medicare Part D claims for 96 beneficiaries; the average among addiction (substance use disorder) registered nurse prescribers was 371. 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.