Mary-Jennelle Guevara
Acute Care Nurse Practitioner · Park Ridge, IL
Mary-Jennelle Guevara is an acute care nurse practitioner with a practice address in Park Ridge, Illinois, and NPI 1225397268, issued on May 11, 2012. Check the license (Illinois 209009523, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary-Jennelle Guevara
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 209009523 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1875 Dempster St, Park Ridge, IL 60068
- Phone
- (847) 897-9010
- Enumerated
- May 11, 2012
- Record last updated
- Feb 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210104002202); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2011
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 639 in Illinois → Look up another NPI →
Also registered at 1875 Dempster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary-Jennelle Guevara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209009523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average acute care nurse practitioner in 2024
929 Medicare Part D claims for 98 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 123 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen66 claims
- Eliquis50 claims
- Lorazepam42 claims
- Losartan Potassium39 claims
- Atorvastatin Calcium38 claims
- Tramadol Hcl33 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: $21.20
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Geri Care LtdPark Ridge, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary-Jennelle Guevara among 639 acute care nurse practitioner records in Illinois
Mary-Jennelle Guevara 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 2012, is newer than 25% of them.
- NPI issued2012 · 25% of these records are older, 71% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2011 · median 2017 among the 434 with a school on file
- Record last updated2015 · 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 Park Ridge → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Annemarie Barr, NP, APRNPark Ridge, IL 600681689231144
- Joanna Delgado, APRNPark Ridge, IL 600681871139766
- Jordan Fischer, NPPark Ridge, IL 600681659224202
- Amanda Gusswein, FNP-BCPark Ridge, IL 600681336678929
- Rosemary O'Toole, ACNPPark Ridge, IL 600681205108685
- Yuriy Olshannikov, DNP, BSN, APRN, RNPark Ridge, IL 600681275391922
- Sandra Orlando, AGACNP-BCPark Ridge, IL 600681215651021
- Ken Schaffer, APNPark Ridge, IL 600681598203523
Common questions
What is Mary-Jennelle Guevara's NPI number?
Mary-Jennelle Guevara's National Provider Identifier (NPI) is 1225397268, issued on May 11, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mary-Jennelle Guevara located?
The NPPES record lists a practice address at 1875 Dempster St, Park Ridge, IL, 60068. Phone: (847) 897-9010. Providers update this record themselves, so call before visiting.
How can I verify Mary-Jennelle Guevara's license?
NPPES lists Illinois license number 209009523, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mary-Jennelle Guevara prescribe under Medicare Part D?
In 2024, Mary-Jennelle Guevara had 929 Medicare Part D claims for 98 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.