NPPES file of Aug 9, 2026

Margaret Mary Tobin

Family Nurse Practitioner · Chicago, IL

Margaret Mary Tobin is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1386127579, issued on Sep 13, 2018. Check the license (Illinois 209018021, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386127579
Name
Margaret Mary Tobin
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209018021 IL
Self-reported in NPPES; status is on the state search
Practice location
4051 N Lincoln Ave, Chicago, IL 60618
Phone
(866) 389-2727
Enumerated
Sep 13, 2018
Record last updated
Jun 10, 2025
Medicare enrollment
Enrolled (PECOS I20210823001157); may accept 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.
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Also registered at 4051 N Lincoln Ave

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

  1. Anisha GroverPharmacist1669076667
  2. Anne-Marie Maida, FNP-BCFamily Nurse Practitioner1699950576
  3. Lauren McCarthyFamily Nurse Practitioner1104234087
  4. Kathryn Merrick, APRNFamily Nurse Practitioner1811320989
  5. Milani Philip, FNP- BCFamily Nurse Practitioner1285195784
  6. Syra Postelnick, FNPFamily Nurse Practitioner1881097301

Verify Margaret Mary Tobin 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 209018021
    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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96% fewer Medicare Part D claims than the average family nurse practitioner in 2024

46 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 96% of claims.

  1. Margaret Tobin46
  2. Specialty average1,305

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: $126.38

4 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. 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.

  1. Margaret Tobin$126.38
  2. Specialty average$650.95

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. Infusion Express OF Illinois LLCGlenview, IL

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

Margaret Mary Tobin among 7,639 family nurse practitioner records in Illinois

Margaret Mary Tobin is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 44% of them.

  • NPI issued2018 · 44% of these records are older, 49% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2018 · median 2018 among the 4,778 with a school on file
  • Record last updated2025 · 39% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,567 family nurse practitioner records list a practice address in Chicago

They are 1,567 of the 63,379 NPPES records with a practice address in Chicago, and 7,639 family nurse practitioner records in Illinois.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Lucila AvilaChicago, IL 606181215348073
  2. Susan Braun, NPChicago, IL 606181912917600
  3. Virgilio Caramay, FNP-BCChicago, IL 606181508332552
  4. Eva Conty-CuevasChicago, IL 606181578670428
  5. Lauren Fishback, APRNChicago, IL 606181255849030
  6. Margaret Gordon, NPChicago, IL 606181003380148
  7. Pei Hui-Sam, NPChicago, IL 606181659736502
  8. Anne-Marie Maida, FNP-BCChicago, IL 606181699950576

Common questions

What is Margaret Mary Tobin's NPI number?

Margaret Mary Tobin's National Provider Identifier (NPI) is 1386127579, issued on Sep 13, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Mary Tobin located?

The NPPES record lists a practice address at 4051 N Lincoln Ave, Chicago, IL, 60618. Phone: (866) 389-2727. Providers update this record themselves, so call before visiting.

How can I verify Margaret Mary Tobin's license?

NPPES lists Illinois license number 209018021, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Margaret Mary Tobin prescribe under Medicare Part D?

In 2024, Margaret Mary Tobin had 46 Medicare Part D claims; 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.