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Dr. Gregory Jerard Ozark, MD
NPI1558337840PAC ID3476602301
- Medicare services, 2024
- 578
- Medicare patients, 2024
- 217
- Part D claims, 2024
- 3,763
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 2160 S 1st Avenue, Maywood, IL 60153
- Practice phone
- Call (708) 216-3299
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loyola Medicine Pediatric Mobile Health Unit
Mobile Lab · Maywood, Illinois
Find Dr. Ozark's professional email, personal email and mobile number
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Dr. Gregory Jerard Ozark is an internist in Maywood, Illinois
Dr. Ozark practices at Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois.
Dr. Ozark's NPI, 1558337840, was assigned on February 27, 2006. Dr. Ozark graduated from Loyola University of Chicago, Stritch School of Medicine in 1994. Dr. Ozark holds Illinois license 36094072.
NPI and contact details
- NPI
- 1558337840NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476602301
- NPI enumeration date
- February 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (708) 216-3299
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Jerard Ozark practices at Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois
Dr. Ozark's primary practice is Loyola Medicine Pediatric Mobile Health Unit, at 2160 S 1st Avenue, Maywood, IL 60153. The practice phone is (708) 216-3299.
- Loyola Medicine Pediatric Mobile Health Unit2160 S 1st Avenue, Maywood, IL 60153Phone(708) 216-3299
Source: Dmand AI Affiliation Data
Dr. Gregory Jerard Ozark is affiliated with 4 sites of care and 2 medical groups
Dr. Ozark's primary practice is Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois. Dr. Ozark is also affiliated with Loyola University Medical Center. The medical group on file is Loyola University Medical Center. Dmand AI also links Dr. Ozark to 1 more hospital, 1 home health agency and 1 medical group, each named with a free account. Dr. Ozark's employer is on file too: a clinical lab.
Loyola Medicine Pediatric Mobile Health UnitPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory Jerard Ozark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ozark practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loyola Medicine Pediatric Mobile Health Unit | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Jerard Ozark is one of 5,652 internists in Illinois
Internal medicine is Dr. Ozark's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ozark is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Ozark
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory Jerard Ozark billed Medicare for 578 services in 2024
CMS data shows 578 Medicare services from Dr. Ozark across 6 procedure codes in 2024, for 217 Medicare patients. Medicare paid $37,203 for them.
Medicare services, 2024578
Medicare patients217
Paid by Medicare$37,203
Procedure codes6
Dr. Ozark's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3862024: 51132%
- Other services
- 2023: 182024: 67272%
Where Dr. Ozark's Medicare services took place, 2024
- In an office50087%
- In a facility7813%
Dr. Ozark compared with the Illinois median for internists, 2024
- Dr. Ozark
- Illinois median
- Medicare services
- 578vs 566Close to median
- Medicare patients
- 217vs 208Close to median
- Part D claims
- 3,209vs 28411.3 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Ozark's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Ozark?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ozark and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Jerard Ozark treated 217 Medicare patients in 2024, average age 74
CMS counts 217 Medicare patients who saw Dr. Ozark in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ozark's median patient age at 69, with 45% women.
Medicare patients, 2024217
Average age74
Average risk score1.45
Also on Medicaid15%
Dr. Ozark's Medicare patients by age, 2024
Dr. Ozark's Medicare patients by sex, 2024
- Women10950%
- Men10850%
Chronic conditions among Dr. Ozark's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Diabetes35%
- Ischemic heart disease26%
- Cancer24%
- Chronic kidney disease24%
- Atrial fibrillation21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ozark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Jerard Ozark wrote 3,763 Medicare Part D claims in 2024
In 2024, Dr. Ozark wrote 3,763 Medicare Part D claims for 436 patients. 89% of them were for generic drugs. CMS names the drug for 3,209 of them, across 63 drugs with 11 or more claims each, at $202,712 in total drug cost. In 2023, CMS named 2,586 claims across 56 drugs.
Part D claims, 20243,763
Drugs named by CMS63
Total drug cost$202,712
Part D patients436
Dr. Ozark's Part D claims by kind of drug, 2024
- Generic3,354 claims89%
- Brand-name392 claims10%
- Other17 claims0%
Dr. Ozark's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ozark's Part D claims, 2024
- Opioids3%103 of 3,763 claims
- Antibiotics1%50 of 3,763 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,5862024: 3,20924%
Drugs named by CMS: 63 in 2024, 56 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gregory Jerard Ozark takes part in Medicare
Dr. Ozark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory Jerard Ozark has 1 publication on record
Dmand AI links 1 paper to Dr. Ozark in 2022. Dr. Ozark's most frequent co-authors are Gregory Gruener, MD and Trent A. Reed, DO.
Papers1
Dr. Ozark's most frequent co-authors
Recent publications by Dr. Ozark
See who Dr. Ozark researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ozark works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory Jerard Ozark received $16 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Ozark from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Cranial Technologies, Inc paid the most, $16.
Companies that paid Dr. Ozark the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Jerard Ozark graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Ozark graduated from Loyola University of Chicago, Stritch School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Jerard Ozark's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory Jerard Ozark
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory Jerard Ozark's NPI number?
Dr. Gregory Jerard Ozark's NPI number is 1558337840. It was assigned on February 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Jerard Ozark?
Dr. Gregory Jerard Ozark is an internist in Maywood, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gregory Jerard Ozark practice?
Dr. Ozark practices at 2160 S 1st Avenue, Maywood, IL 60153. Dr. Ozark's primary practice is Loyola Medicine Pediatric Mobile Health Unit in Maywood, Illinois. Dmand AI also links Dr. Ozark to 1 hospital, 1 home health agency and 1 medical group.
What is Dr. Gregory Jerard Ozark's office phone number?
The practice phone on file for Dr. Ozark is (708) 216-3299.
What is Dr. Gregory Jerard Ozark's medical license number?
Dr. Ozark holds Illinois license 36094072.
Which hospitals is Dr. Gregory Jerard Ozark affiliated with?
Dr. Ozark is affiliated with Loyola University Medical Center. Dmand AI links Dr. Ozark to 1 more hospital.
What medical group is Dr. Gregory Jerard Ozark part of?
Dr. Ozark is linked to Loyola University Medical Center. Dmand AI links Dr. Ozark to 1 more medical group.
Does Dr. Gregory Jerard Ozark accept Medicare?
Yes. CMS data shows Dr. Ozark billed Medicare for 578 services in 2024, and Dr. Ozark accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Jerard Ozark see?
CMS counts 217 Medicare patients who saw Dr. Ozark in 2024, with an average age of 74.
What services does Dr. Gregory Jerard Ozark bill to Medicare?
In 2024, Dr. Ozark's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99232) and office visit, established patient (99213).
Show 6 more questionsShow fewer questions
Where did Dr. Gregory Jerard Ozark go to medical school?
Dr. Ozark graduated from Loyola University of Chicago, Stritch School of Medicine in 1994.
What drugs does Dr. Gregory Jerard Ozark prescribe most?
In 2024 Medicare Part D data, Dr. Ozark's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Gregory Jerard Ozark received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Ozark from 1 company from 2024 to 2024. The largest total came from Cranial Technologies, Inc.
How long has Dr. Gregory Jerard Ozark been practicing?
Dr. Ozark graduated from medical school in 1994, 32 years ago.
Does Dr. Gregory Jerard Ozark do research?
Dmand AI links 1 publication to Dr. Ozark.
Who does Dr. Gregory Jerard Ozark publish with?
Dr. Ozark's most frequent co-authors are Gregory Gruener, MD (1 shared paper) and Trent A. Reed, DO (1 shared paper).
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