Diane L. Ozog, MD
Allergy & Immunology Physician · Naperville, IL
Diane L. Ozog, MD is an allergy & immunology physician with a practice address in Naperville, Illinois, and NPI 1972647154, issued on Feb 19, 2007. Check the license (Illinois 036067853, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Diane L. Ozog
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 036067853 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1331 W 75TH St Ste 303, Naperville, IL 60540
- Phone
- (630) 652-0606
- Enumerated
- Feb 19, 2007
- Record last updated
- Oct 3, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (630) 652-9900
- Medicare enrollment
- Enrolled (PECOS I20101109000078); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Medicine And Surgery, 1982
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 162 in Illinois → Look up another NPI →
Also registered at 1331 W 75TH St Ste 303
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Tasch, P.A. - CPhysician Assistant1073848669
Verify Diane L. Ozog in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036067853Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average allergy & immunology physician in 2024
788 Medicare Part D claims for 162 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Montelukast Sodium137 claims
- Breo Ellipta88 claims
- Levocetirizine Dihydrochloride77 claims
- Trelegy Ellipta65 claims
- Albuterol Sulfate Hfa63 claims
- Azelastine Hcl39 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: $1,219.95
11 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 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
- Diane L Ozog, MdscNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane L. Ozog among 162 allergy & immunology physician records in Illinois
Diane L. Ozog, MD is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 39% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1982 · median 2001 among the 114 with a school on file
- Record last updated2018 · 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 207K00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Illinois
There are 162 allergy & immunology physician records in Illinois.
All 162 in Illinois → Every provider in Naperville → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Raymond Pongonis, M.D.Naperville, IL 605401023274792
- Sakina Bajowala, M.D.North Aurora, IL 605421427259605
- Samyukta Koppula, M.D.Willowbrook, IL 605271770641763
- Syed Rizvi, MDCountryside, IL 605251992235865
- Ann Collier, MDOak Brook, IL 605231891863411
- Abhilasha Ganju, MDWestern Springs, IL 605581427139690
- Manika Girdhar, D.O.Hinsdale, IL 605211003186479
- Kiran Girdhar, M.D.Hinsdale, IL 605211508942822
Common questions
What is Diane L. Ozog, MD's NPI number?
Diane L. Ozog, MD's National Provider Identifier (NPI) is 1972647154, issued on Feb 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Diane L. Ozog, MD located?
The NPPES record lists a practice address at 1331 W 75TH St Ste 303, Naperville, IL, 60540. Phone: (630) 652-0606. Providers update this record themselves, so call before visiting.
How can I verify Diane L. Ozog, MD's license?
NPPES lists Illinois license number 036067853, 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 Diane L. Ozog, MD prescribe under Medicare Part D?
In 2024, Diane L. Ozog, MD had 788 Medicare Part D claims for 162 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.