Diana Guillaume, NP
Adult Health Nurse Practitioner · Skokie, IL
Diana Guillaume, NP is an adult health nurse practitioner with a practice address in Skokie, Illinois, and NPI 1396037685, issued on May 5, 2011. Check the license (Illinois 277.005282, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Guillaume
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 277.005282 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4120 Dempster St, Skokie, IL 60076
- Phone
- (224) 601-7032
- Enumerated
- May 5, 2011
- Record last updated
- Apr 14, 2026
- Fax
- (224) 257-7432
- Medicare enrollment
- Enrolled (PECOS I20141204002482); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 743 in Illinois → Look up another NPI →
Also registered at 4120 Dempster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Saqueton, MDInternal Medicine Physician1952325664
Verify Diana Guillaume in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 277.005282Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.6 times the Medicare Part D claims of the average adult health nurse practitioner in 2024
7,136 Medicare Part D claims for 597 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 14 claims were for opioids.
Most prescribed
- Atorvastatin Calcium835 claims
- Metformin Hcl396 claims
- Amlodipine Besylate315 claims
- Lisinopril272 claims
- Gabapentin226 claims
- Rosuvastatin Calcium224 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
- Oak Street Health Physicians Group PCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Guillaume among 743 adult health nurse practitioner records in Illinois
Diana Guillaume, NP 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 2011, is newer than 41% of them.
- NPI issued2011 · 41% of these records are older, 52% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2009 · median 2013 among the 372 with a school on file
- Record last updated2026 · 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.
All 743 in Illinois → Every provider in Skokie → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Timothy Morrill, ARNP, CAPSkokie, IL 600761205263019
- Kristine Mulingbayan, NP-CSkokie, IL 600761124457254
- Jaimee Smith, APN, C.N.P.Skokie, IL 600761992766786
- Brian Weinstein, NPSkokie, IL 600761366676090
- Moonja Yoo, APN-CNPSkokie, IL 600761295036945
- Mary Andreoni, MSN,NP-C,CDESkokie, IL 600771467694034
- Binoy AndrewsSkokie, IL 600771780187195
- Teia Atwood, NP-CSkokie, IL 600771205165222
Common questions
What is Diana Guillaume, NP's NPI number?
Diana Guillaume, NP's National Provider Identifier (NPI) is 1396037685, issued on May 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Diana Guillaume, NP located?
The NPPES record lists a practice address at 4120 Dempster St, Skokie, IL, 60076. Phone: (224) 601-7032. Providers update this record themselves, so call before visiting.
How can I verify Diana Guillaume, NP's license?
NPPES lists Illinois license number 277.005282, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Guillaume, NP prescribe under Medicare Part D?
In 2024, Diana Guillaume, NP had 7,136 Medicare Part D claims for 597 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.