NPPES file of Aug 9, 2026

Marcella Lynn McGuinn, MD

Infectious Disease Physician · Oak Park, IL

Marcella Lynn McGuinn, MD is an infectious disease physician with a practice address in Oak Park, Illinois, and NPI 1528083987, issued on Jul 13, 2006. Check the license (Illinois 036100912, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1528083987
Name
Marcella Lynn McGuinn
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
036100912 IL
Self-reported in NPPES; status is on the state search
Practice location
610 S Maple Ave Ste 4050, Oak Park, IL 60304
Phone
(888) 220-6432
Enumerated
Jul 13, 2006
Record last updated
Apr 18, 2022
Fax
(708) 613-4382
Medicare enrollment
Enrolled (PECOS I20041108000098); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1997
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 610 S Maple Ave Ste 4050

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

  1. Nyal Siddiqi, D.O.Infectious Disease Physician1952749426
  2. Daniel Stroupe, MDInfectious Disease Physician1003923426

Verify Marcella Lynn McGuinn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036100912
    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
Open 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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58% fewer Medicare Part D claims than the average infectious disease physician in 2024

292 Medicare Part D claims for 56 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Marcella McGuinn292
  2. Specialty average689

Most prescribed

  1. Ertapenem54 claims
  2. Daptomycin41 claims
  3. Cefepime Hcl23 claims
  4. Sulfamethoxazole-Trimethoprim21 claims
  5. Ceftriaxone16 claims
  6. Meropenem16 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. Metro Infectious Disease Consultants LLCChicago, IL

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

Marcella Lynn McGuinn among 464 infectious disease physician records in Illinois

Marcella Lynn McGuinn, MD is one of 464 infectious disease physician 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 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1997 · median 2004 among the 311 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Illinois

There are 464 infectious disease physician records in Illinois.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Nausica D' Alfonso- Laghi, MDOak Park, IL 603041831268432
  2. Iram Enayet, MDOak Park, IL 603041366511966
  3. Ana Istrate, MD, MSOak Park, IL 603041568081362
  4. Nyal Siddiqi, D.O.Oak Park, IL 603041952749426
  5. Daniel Stroupe, MDOak Park, IL 603041003923426
  6. Malcolm Deam, MDOak Park, IL 603021598750549
  7. Deepti Chauhan, M.D.Oak Park, IL 603011689812554
  8. Alice HanOak Park, IL 603011669631339

Common questions

What is Marcella Lynn McGuinn, MD's NPI number?

Marcella Lynn McGuinn, MD's National Provider Identifier (NPI) is 1528083987, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marcella Lynn McGuinn, MD located?

The NPPES record lists a practice address at 610 S Maple Ave Ste 4050, Oak Park, IL, 60304. Phone: (888) 220-6432. Providers update this record themselves, so call before visiting.

How can I verify Marcella Lynn McGuinn, MD's license?

NPPES lists Illinois license number 036100912, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marcella Lynn McGuinn, MD prescribe under Medicare Part D?

In 2024, Marcella Lynn McGuinn, MD had 292 Medicare Part D claims for 56 beneficiaries; the average among infectious disease physician prescribers was 689. 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.