NPPES file of Aug 9, 2026

Mariellen Patricia Antman, APN-CNP

Adult Health Nurse Practitioner · Lake Forest, IL

Mariellen Patricia Antman, APN-CNP is an adult health nurse practitioner with a practice address in Lake Forest, Illinois, and NPI 1235271941, issued on Feb 12, 2007. Check the license (Illinois 209.005116, as entered in NPPES) with the Illinois 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235271941
Name
Mariellen Patricia Antman
Credential
APN-CNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
209.005116 IL
041202000 IL
209005116 IL
Self-reported in NPPES; status is on the state search
Practice location
800 N Westmoreland RD, Lake Forest, IL 60045
Phone
(847) 735-8550
Enumerated
Feb 12, 2007
Record last updated
Oct 13, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(847) 535-8590
Medicare enrollment
Enrolled (PECOS I20041006000697); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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Also registered at 800 N Westmoreland RD

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

  1. John Andrews, M.D.Colon & Rectal Surgery Physician1992775340
  2. John Benge, MDCardiovascular Disease Physician1285628859
  3. Mark Blitstein, M.D.Specialist1922086560
  4. Scott Braunlich, M.D.Internal Medicine Physician1487638904
  5. Kristen Coleman, NPAdult Health Nurse Practitioner1376891549
  6. Brooke Folkrod, CCC-SLPSpeech-Language Pathologist1265746705

Verify Mariellen Patricia Antman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209.005116
    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 Illinois 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.

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34% more Medicare Part D claims than the average adult health nurse practitioner in 2024

1,714 Medicare Part D claims for 396 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Mariellen Antman1,714
  2. Specialty average1,280

Most prescribed

  1. Metoprolol Succinate224 claims
  2. Atorvastatin Calcium155 claims
  3. Amlodipine Besylate124 claims
  4. Eliquis119 claims
  5. Torsemide84 claims
  6. Metoprolol Tartrate83 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $248.30

2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mariellen Antman$248.30
  2. Specialty average$946.40

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

  1. Northwestern Medical Faculty FoundationLake Forest, IL

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

Mariellen Patricia Antman among 743 adult health nurse practitioner records in Illinois

Mariellen Patricia Antman, APN-CNP is one of 743 adult health nurse practitioner records with a practice address in Illinois. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 17% of them.

  • NPI issued2007 · 17% of these records are older, 72% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2003 · median 2013 among the 372 with a school on file
  • Record last updated2016 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Illinois

There are 743 adult health nurse practitioner records in Illinois.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Jennifer Ciccone, NPLake Forest, IL 600451205890878
  2. Kristen Coleman, NPLake Forest, IL 600451376891549
  3. Suzana Draginis, FPA-APRN, AGNP,IFMCPLake Forest, IL 600451730724451
  4. Kathy Salinger, APN/NP-CLake Forest, IL 600451295014892
  5. Doris Spicer, MS, APN-CLake Forest, IL 600451639397391
  6. Angela Lutes, NP-CLake Bluff, IL 600441699502468
  7. Sara Acosta, FNP-CLong Grove, IL 600471831548478
  8. Erin Daly, FNP-BCLong Grove, IL 600471891240636

Common questions

What is Mariellen Patricia Antman, APN-CNP's NPI number?

Mariellen Patricia Antman, APN-CNP's National Provider Identifier (NPI) is 1235271941, issued on Feb 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mariellen Patricia Antman, APN-CNP located?

The NPPES record lists a practice address at 800 N Westmoreland RD, Lake Forest, IL, 60045. Phone: (847) 735-8550. Providers update this record themselves, so call before visiting.

How can I verify Mariellen Patricia Antman, APN-CNP's license?

NPPES lists Illinois license number 209.005116, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Mariellen Patricia Antman, APN-CNP prescribe under Medicare Part D?

In 2024, Mariellen Patricia Antman, APN-CNP had 1,714 Medicare Part D claims for 396 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

What is Mariellen Patricia Antman, APN-CNP's MIPS final score?

The 2023 MIPS final score is 94.1 of 100. 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.