Dr. Patrick E. Onkka, MD
- Medicare services, 2024
- 75,408
- Medicare patients, 2024
- 691
- Part D claims, 2024
- 1,255
- Publications
- 3
- MIPS score, 2024
- 95
- Practice address
- 800 N Westmoreland Rd Ste 201 Suite 201, Lake Forest, IL 60045
- Practice phone
- Call (847) 535-7647
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Medical Group
Multi-specialty group site · Lake Forest, Illinois
Find Dr. Onkka's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Patrick E. Onkka is a rheumatologist in Lake Forest, Illinois
Dr. Onkka practices at Northwestern Medical Group in Lake Forest, Illinois.
Dr. Onkka's NPI, 1407235518, was assigned on May 21, 2015. Dr. Onkka graduated from Indiana University School of Medicine in 2015. Dr. Onkka holds Illinois license 036-145886.
- NPI
- 1407235518NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163713603
- NPI enumeration date
- May 21, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 535-7647
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick E. Onkka practices at Northwestern Medical Group in Lake Forest, Illinois
Dr. Onkka's primary practice is Northwestern Medical Group, at 800 N Westmoreland Rd Ste 201 Suite 201, Lake Forest, IL 60045. The practice phone is (847) 535-7647.
- Northwestern Medical Group800 N Westmoreland Rd Ste 201 Suite 201, Lake Forest, IL 60045Phone(847) 535-7647
Source: Dmand AI Affiliation Data
Dr. Patrick E. Onkka is affiliated with 6 sites of care and 1 medical group
Dr. Onkka's primary practice is Northwestern Medical Group in Lake Forest, Illinois. Dr. Onkka is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Onkka to 4 more hospitals, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Patrick E. Onkka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Onkka practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medical Group | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patrick E. Onkka is one of 285 rheumatologists in Illinois
Rheumatology is Dr. Onkka's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Onkka is licensed in Illinois.
Specialties and state licenses
- Rheumatology, IllinoisPrimary
Rheumatologists near Dr. Onkka
Counts of rheumatologists 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. Patrick E. Onkka billed Medicare for 75,408 services in 2024
CMS data shows 75,408 Medicare services from Dr. Onkka across 22 procedure codes in 2024, for 691 Medicare patients. Medicare paid $839,042 for them. Every service was in an office.
Dr. Onkka's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 89,8202024: 65,72027%
- Other services
- 2023: 02024: 7,650
- Tests and treatments
- 2023: 9502024: 1,15121%
- Office and hospital visits
- 2023: 4952024: 4617%
- Surgery
- 2023: 3512024: 42621%
Dr. Onkka compared with the Illinois median for rheumatologists, 2024
- Dr. Onkka
- Illinois median
- Medicare services
- 75,408vs 98776.4 times
- Medicare patients
- 691vs 2622.6 times
- Part D claims
- 1,060vs 1,077Close to median
Medians across 290 rheumatologists in Illinois with Dmand AI profiles that report each measure.
Dr. Onkka'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Onkka and other rheumatologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick E. Onkka treated 691 Medicare patients in 2024, average age 75
CMS counts 691 Medicare patients who saw Dr. Onkka in 2024. The largest group is 65 to 74, with 286 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Onkka's median patient age at 70, with 70% women.
Dr. Onkka's Medicare patients by age, 2024
Dr. Onkka's Medicare patients by sex, 2024
- Women52977%
- Men16223%
Chronic conditions among Dr. Onkka's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis65%
- Osteoporosis62%
- Anxiety27%
- Ischemic heart disease26%
- Mood disorders24%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Onkka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Patrick E. Onkka wrote 1,255 Medicare Part D claims in 2024
In 2024, Dr. Onkka wrote 1,255 Medicare Part D claims for 219 patients. 89% of them were for generic drugs. CMS names the drug for 1,060 of them, across 20 drugs with 11 or more claims each, at $532,109 in total drug cost. In 2023, CMS named 1,030 claims across 26 drugs.
Dr. Onkka's Part D claims by kind of drug, 2024
- Generic1,118 claims89%
- Brand-name and other137 claims11%
Dr. Onkka'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. Onkka's Part D claims, 2024
- Opioids6%74 of 1,255 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: 1,0302024: 1,0603%
Drugs named by CMS: 20 in 2024, 26 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
Dr. Patrick E. Onkka scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Onkka for performance year 2024, reported through an alternative payment model (APM). Dr. Onkka accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Onkka as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Onkka's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Patrick E. Onkka has 3 publications on record
Dmand AI links 3 papers to Dr. Onkka, published from 2012 to 2017. Dr. Onkka's most frequent co-authors are Lan Shu Chen, MD, Peng-Sheng Chen, MD and Michael Claude Fishbein, MD.
Dr. Onkka's papers by year, 2012 to 2017
Dr. Onkka's most frequent co-authors
- Lan Shu Chen, MD2 shared papers
- Peng-Sheng Chen, MD1 shared paper
- Michael Claude Fishbein, MD1 shared paper
Recent publications by Dr. Onkka
See who Dr. Onkka researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Onkka works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Patrick E. Onkka received $1,320 in industry payments from 2018 to 2023
CMS Open Payments shows 31 general payments to Dr. Onkka from 10 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 91% of the total. Abbvie Inc. paid the most, $493.
General payments to Dr. Onkka by program year, 2018 to 2023
General payments to Dr. Onkka by kind, 2018 to 2023
- Food and beverage$1,19991%
- Education$1219%
Companies that paid Dr. Onkka the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick E. Onkka graduated from Indiana University School of Medicine
Dr. Onkka graduated from Indiana University School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick E. Onkka'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Patrick E. Onkka
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. Patrick E. Onkka's NPI number?
Dr. Patrick E. Onkka's NPI number is 1407235518. It was assigned on May 21, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick E. Onkka?
Dr. Patrick E. Onkka is a rheumatologist in Lake Forest, Illinois. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Patrick E. Onkka practice?
Dr. Onkka practices at 800 N Westmoreland Rd Ste 201 Suite 201, Lake Forest, IL 60045. Dr. Onkka's primary practice is Northwestern Medical Group in Lake Forest, Illinois. Dmand AI also links Dr. Onkka to 4 hospitals.
What is Dr. Patrick E. Onkka's office phone number?
The practice phone on file for Dr. Onkka is (847) 535-7647.
What is Dr. Patrick E. Onkka's medical license number?
Dr. Onkka holds Illinois license 036-145886.
Which hospitals is Dr. Patrick E. Onkka affiliated with?
Dr. Onkka is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. Dmand AI links Dr. Onkka to 4 more hospitals.
What medical group is Dr. Patrick E. Onkka part of?
Dr. Onkka is linked to Northwestern Medical Faculty Foundation.
Does Dr. Patrick E. Onkka accept Medicare?
Yes. CMS data shows Dr. Onkka billed Medicare for 75,408 services in 2024, and Dr. Onkka accepts Medicare assignment.
Does Dr. Patrick E. Onkka offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Onkka as offering telehealth services.
What is Dr. Patrick E. Onkka's MIPS score?
Dr. Onkka's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Patrick E. Onkka see?
CMS counts 691 Medicare patients who saw Dr. Onkka in 2024, with an average age of 75.
What services does Dr. Patrick E. Onkka bill to Medicare?
In 2024, Dr. Onkka's most billed Medicare services were injected or infused drug (J1439), injected or infused drug (J0897) and injected or infused drug (J3111).
Where did Dr. Patrick E. Onkka go to medical school?
Dr. Onkka graduated from Indiana University School of Medicine in 2015.
What drugs does Dr. Patrick E. Onkka prescribe most?
In 2024 Medicare Part D data, Dr. Onkka's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Methotrexate.
Has Dr. Patrick E. Onkka received payments from drug or device companies?
CMS Open Payments shows $1,320 in general payments to Dr. Onkka from 10 companies from 2018 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Patrick E. Onkka been practicing?
Dr. Onkka graduated from medical school in 2015, 11 years ago.
Does Dr. Patrick E. Onkka do research?
Dmand AI links 3 publications to Dr. Onkka, published from 2012 to 2017.
Who does Dr. Patrick E. Onkka publish with?
Dr. Onkka's most frequent co-authors are Lan Shu Chen, MD (2 shared papers), Peng-Sheng Chen, MD (1 shared paper) and Michael Claude Fishbein, MD (1 shared paper).
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