Diane Zimmer
Family Nurse Practitioner · Oak Lawn, IL
Diane Zimmer is a family nurse practitioner with a practice address in Oak Lawn, Illinois, and NPI 1588801732, issued on Jan 9, 2009. Check the license (Illinois 209007358, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diane Zimmer
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209007358 IL
Self-reported in NPPES; status is on the state search - Practice location
- 9940 Harnew Road East, Oak Lawn, IL 60453
- Phone
- (708) 738-9732
- Enumerated
- Jan 9, 2009
- Record last updated
- Jun 30, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181116002233); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Verify Diane Zimmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209007358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average family nurse practitioner in 2024
1,798 Medicare Part D claims for 136 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium119 claims
- Amlodipine Besylate111 claims
- Albuterol Sulfate Hfa72 claims
- Fluticasone Propionate59 claims
- Metformin Hcl56 claims
- Hydrochlorothiazide52 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: $691.95
34 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.
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
- Friend Family Health Center IncChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane Zimmer among 7,639 family nurse practitioner records in Illinois
Diane Zimmer 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 2009, is newer than 9% of them.
- NPI issued2009 · 9% of these records are older, 89% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2008 · median 2018 among the 4,778 with a school on file
- Record last updated2009 · 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).
93 family nurse practitioner records list a practice address in Oak Lawn
They are 93 of the 2,993 NPPES records with a practice address in Oak Lawn, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Oak Lawn → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Kelly Billingsley, NPOak Lawn, IL 604531063761724
- Leah Burns, APN, FNPOak Lawn, IL 604531548509110
- Kelly Canerday, FNP-BCOak Lawn, IL 604531952744963
- Jeanne Dougherty, APNOak Lawn, IL 604531598872368
- Jane Flanagan, APNOak Lawn, IL 604531770779522
- Linda Follenweider, NPOak Lawn, IL 604531740228584
- Lisa Guzman, NPOak Lawn, IL 604531790886257
- Amy Hansen, FNPOak Lawn, IL 604531629491543
Common questions
What is Diane Zimmer's NPI number?
Diane Zimmer's National Provider Identifier (NPI) is 1588801732, issued on Jan 9, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Diane Zimmer located?
The NPPES record lists a practice address at 9940 Harnew Road East, Oak Lawn, IL, 60453. Phone: (708) 738-9732. Providers update this record themselves, so call before visiting.
How can I verify Diane Zimmer's license?
NPPES lists Illinois license number 209007358, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Diane Zimmer prescribe under Medicare Part D?
In 2024, Diane Zimmer had 1,798 Medicare Part D claims for 136 beneficiaries; 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.