Dr. John R. Deforest, DO
- Medicare services, 2024
- 4,045
- Medicare patients, 2024
- 583
- Part D claims, 2024
- 13,694
- MIPS score, 2024
- 19
- Hospital affiliations
- 5
- Practice address
- 715 Dixie Hwy, Beecher, IL 60401
- Practice phone
- Call (708) 946-9330
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John R Deforest D.O. S.C.
Beecher, Illinois
Find Dr. Deforest'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. John R. Deforest is a family medicine physician in Beecher, Illinois
Dr. Deforest practices at John R Deforest D.O. S.C. in Beecher, Illinois.
Dr. Deforest's NPI, 1003842964, was assigned on June 23, 2006. Dr. Deforest graduated from Chicago College of Osteopathy in 1992. Dr. Deforest holds Illinois license 336051704.
- NPI
- 1003842964NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931112604
- NPI enumeration date
- June 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (708) 946-9330
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John R. Deforest practices at John R Deforest D.O. S.C. in Beecher, Illinois
Dr. Deforest's primary practice is John R Deforest D.O. S.C., at 715 Dixie Hwy, Beecher, IL 60401 in Will County. The practice phone is (708) 946-9330.
- John R Deforest D.O. S.C.715 Dixie Hwy, Beecher, IL 60401 · Will CountyPhone(708) 946-9330
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John R. Deforest is affiliated with 11 sites of care and 1 medical group
Dr. Deforest's primary practice is John R Deforest D.O. S.C. in Beecher, Illinois. Dr. Deforest is also affiliated with Northwestern Medicine Central DuPage Hospital. The medical group on file is DeForest Medical. Dmand AI also links Dr. Deforest to 4 more hospitals, 3 home health agencies, 1 group practice or clinic and 1 skilled nursing facility, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John R. Deforest's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Deforest practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John R Deforest D.O. S.C. | Available with a free account |
| +10 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John R. Deforest is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Deforest's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Deforest is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Deforest
Counts of family medicine physicians 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. John R. Deforest billed Medicare for 4,045 services in 2024
CMS data shows 4,045 Medicare services from Dr. Deforest across 17 procedure codes in 2024, for 583 Medicare patients. Medicare paid $203,380 for them. Every service was in an office.
Dr. Deforest's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,1542024: 2,0097%
- Surgery
- 2023: 1,0542024: 1,0421%
- Tests and treatments
- 2023: 5432024: 5096%
- Other services
- 2023: 4022024: 3952%
- Lab and pathology
- 2023: 852024: 906%
- Drugs given in the office
- 2023: 272024: 0100%
Dr. Deforest compared with the Illinois median for family medicine physicians, 2024
- Dr. Deforest
- Illinois median
- Medicare services
- 4,045vs 35611.4 times
- Medicare patients
- 583vs 1603.6 times
- Part D claims
- 12,989vs 61821.0 times
Medians across 5,015 family medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Deforest'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. Deforest?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Deforest and other family medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John R. Deforest treated 583 Medicare patients in 2024, average age 74
CMS counts 583 Medicare patients who saw Dr. Deforest in 2024. The largest group is 65 to 74, with 273 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Deforest's median patient age at 70, with 46% women.
Dr. Deforest's Medicare patients by age, 2024
Dr. Deforest's Medicare patients by sex, 2024
- Women28549%
- Men29851%
Chronic conditions among Dr. Deforest's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis38%
- Diabetes33%
- Ischemic heart disease23%
- Atrial fibrillation16%
- Anxiety15%
- COPD15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Deforest'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
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John R. Deforest wrote 13,694 Medicare Part D claims in 2024
In 2024, Dr. Deforest wrote 13,694 Medicare Part D claims for 764 patients. 87% of them were for generic drugs. CMS names the drug for 12,989 of them, across 167 drugs with 11 or more claims each, at $1,220,961 in total drug cost. In 2023, CMS named 10,877 claims across 154 drugs.
Dr. Deforest's Part D claims by kind of drug, 2024
- Generic11,931 claims87%
- Brand-name1,714 claims13%
- Other49 claims0%
Dr. Deforest'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. Deforest's Part D claims, 2024
- Opioids3%400 of 13,694 claims
- Antibiotics3%381 of 13,694 claims
- Antipsychotics, patients 65 and over0%16 of 13,694 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: 10,8772024: 12,98919%
Drugs named by CMS: 167 in 2024, 154 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. John R. Deforest scored 19 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 19 out of 100 for Dr. Deforest for performance year 2024, reported individually. Dr. Deforest accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Deforest as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Deforest's MIPS scores, performance year 2024
- 19of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 63of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John R. Deforest received $17,315 in industry payments from 2016 to 2025
CMS Open Payments shows 1,037 general payments to Dr. Deforest from 49 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,627.
General payments to Dr. Deforest by program year, 2016 to 2025
General payments to Dr. Deforest by kind, 2016 to 2025
- Food and beverage$17,22799%
- Education$740%
- Honoraria$150%
Companies that paid Dr. Deforest the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John R. Deforest graduated from Chicago College of Osteopathy
Dr. Deforest graduated from Chicago College of Osteopathy in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John R. Deforest'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. John R. Deforest
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. John R. Deforest's NPI number?
Dr. John R. Deforest's NPI number is 1003842964. It was assigned on June 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John R. Deforest?
Dr. John R. Deforest is a family medicine physician in Beecher, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John R. Deforest practice?
Dr. Deforest practices at 715 Dixie Hwy, Beecher, IL 60401. Dr. Deforest's primary practice is John R Deforest D.O. S.C. in Beecher, Illinois. Dmand AI also links Dr. Deforest to 4 hospitals, 3 home health agencies, 1 group practice or clinic and 1 skilled nursing facility.
What is Dr. John R. Deforest's office phone number?
The practice phone on file for Dr. Deforest is (708) 946-9330.
What is Dr. John R. Deforest's medical license number?
Dr. Deforest holds Illinois license 336051704.
Which hospitals is Dr. John R. Deforest affiliated with?
Dr. Deforest is affiliated with Northwestern Medicine Central DuPage Hospital. Dmand AI links Dr. Deforest to 4 more hospitals.
What medical group is Dr. John R. Deforest part of?
Dr. Deforest is linked to DeForest Medical.
Does Dr. John R. Deforest accept Medicare?
Yes. CMS data shows Dr. Deforest billed Medicare for 4,045 services in 2024, and Dr. Deforest accepts Medicare assignment.
Does Dr. John R. Deforest offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Deforest as offering telehealth services.
What is Dr. John R. Deforest's MIPS score?
Dr. Deforest's MIPS final score for performance year 2024 is 19 out of 100, reported individually.
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How many Medicare patients does Dr. John R. Deforest see?
CMS counts 583 Medicare patients who saw Dr. Deforest in 2024, with an average age of 74.
What services does Dr. John R. Deforest bill to Medicare?
In 2024, Dr. Deforest's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and office visit, established patient (99213).
Where did Dr. John R. Deforest go to medical school?
Dr. Deforest graduated from Chicago College of Osteopathy in 1992.
What drugs does Dr. John R. Deforest prescribe most?
In 2024 Medicare Part D data, Dr. Deforest's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Metformin HCl.
Has Dr. John R. Deforest received payments from drug or device companies?
CMS Open Payments shows $17,315 in general payments to Dr. Deforest from 49 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. John R. Deforest been practicing?
Dr. Deforest graduated from medical school in 1992, 34 years ago.
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