Marissa K. Newtoff, M.S.N., ACNP-BC
Acute Care Nurse Practitioner · Oak Lawn, IL
Marissa K. Newtoff, M.S.N., ACNP-BC is an acute care nurse practitioner with a practice address in Oak Lawn, Illinois, and NPI 1740519552, issued on Dec 8, 2009. Check the license (Illinois 209.007871, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa K. Newtoff
- Credential
- M.S.N., ACNP-BC
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 209.007871 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4400 W 95TH St Ste 308, Oak Lawn, IL 60453
- Phone
- (708) 346-4040
- Enumerated
- Dec 8, 2009
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (708) 346-3287
- Medicare enrollment
- Enrolled (PECOS I20160107001139); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 639 in Illinois → Look up another NPI →
Also registered at 4400 W 95TH St Ste 308
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Alberico, CSFASurgical Assistant1336805092
- Philip Alexander, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1437159142
- Allison Beckett, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1730542788
- Laura Bergquist, CST/CSFASurgical Assistant1548769466
- Zachary Byington, PA-CSurgical Physician Assistant1093568487
- Christina Caraballo, PA-CPhysician Assistant1295155646
Verify Marissa K. Newtoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209.007871Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
44 Medicare Part D claims for 35 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen20 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: $2,095.39
10 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 10,984 providers of this specialty with any payment received $647.94 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
- Cardiothoracic And Vascular Surgical Associates S COak Lawn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa K. Newtoff among 639 acute care nurse practitioner records in Illinois
Marissa K. Newtoff, M.S.N., ACNP-BC is one of 639 acute care nurse practitioner records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 15% of them.
- NPI issued2009 · 15% of these records are older, 83% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2009 · median 2017 among the 434 with a school on file
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Illinois
There are 639 acute care nurse practitioner records in Illinois.
All 639 in Illinois → Every provider in Oak Lawn → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Megan BaroOak Lawn, IL 604531811587686
- Alison Bartnicki, AGACNP-BCOak Lawn, IL 604531366862005
- Joanne Brown, APN, ACNP-BCOak Lawn, IL 604531750545505
- Laura Coyle, RN, MSN, NP-BCOak Lawn, IL 604531881864213
- Kristen Dudzik, ANPOak Lawn, IL 604531831646991
- Kelly Keating, AGACNP-BCOak Lawn, IL 604531346708971
- Stavroula Melegos, ACNPOak Lawn, IL 604531639448707
- Kelly Rimawi, APNOak Lawn, IL 604531720215783
Common questions
What is Marissa K. Newtoff, M.S.N., ACNP-BC's NPI number?
Marissa K. Newtoff, M.S.N., ACNP-BC's National Provider Identifier (NPI) is 1740519552, issued on Dec 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Marissa K. Newtoff, M.S.N., ACNP-BC located?
The NPPES record lists a practice address at 4400 W 95TH St Ste 308, Oak Lawn, IL, 60453. Phone: (708) 346-4040. Providers update this record themselves, so call before visiting.
How can I verify Marissa K. Newtoff, M.S.N., ACNP-BC's license?
NPPES lists Illinois license number 209.007871, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa K. Newtoff, M.S.N., ACNP-BC prescribe under Medicare Part D?
In 2024, Marissa K. Newtoff, M.S.N., ACNP-BC had 44 Medicare Part D claims for 35 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.