Dr. Robert B. Johnston, MD
- Medicare services, 2024
- 665
- Medicare patients, 2024
- 364
- Part D claims, 2024
- 1,686
- Industry payments
- $42
- Affiliated sites
- 3
- Practice address
- 101 W University Ave, Champaign, IL 61820
- Practice phone
- Call (217) 366-1270
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Christie Clinic Amblatory Surgery Center
Surgery Center - Not Medicare-Certified · Champaign, Illinois
Find Dr. Johnston'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. Robert B. Johnston is a family medicine physician in Champaign, Illinois
Dr. Johnston practices at Christie Clinic Amblatory Surgery Center in Champaign, Illinois.
Dr. Johnston's NPI, 1720016686, was assigned on June 29, 2006. Dr. Johnston graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1992. Dr. Johnston holds Illinois license 036090080.
- NPI
- 1720016686NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779555271
- NPI enumeration date
- June 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 366-1270
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert B. Johnston practices at Christie Clinic Amblatory Surgery Center in Champaign, Illinois
Dr. Johnston's primary practice is Christie Clinic Amblatory Surgery Center, at 101 W University Ave, Champaign, IL 61820. The practice phone is (217) 366-1270.
- Christie Clinic Amblatory Surgery Center101 W University Ave, Champaign, IL 61820Phone(217) 366-1270
Source: Dmand AI Affiliation Data
Dr. Robert B. Johnston is affiliated with 3 sites of care and 2 medical groups
Dr. Johnston's primary practice is Christie Clinic Amblatory Surgery Center in Champaign, Illinois. The medical group on file is Christie Clinic. Dmand AI also links Dr. Johnston to 1 more breast imaging center, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Johnston's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert B. Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Christie Clinic Amblatory Surgery Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert B. Johnston is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Johnston is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Johnston
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. Robert B. Johnston billed Medicare for 665 services in 2024
CMS data shows 665 Medicare services from Dr. Johnston across 12 procedure codes in 2024, for 364 Medicare patients. Medicare paid $34,281 for them. Every service was in an office.
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2822024: 43354%
- Lab and pathology
- 2023: 1212024: 19964%
- Surgery
- 2023: 212024: 3357%
Dr. Johnston compared with the Illinois median for family medicine physicians, 2024
- Dr. Johnston
- Illinois median
- Medicare services
- 665vs 35687% above
- Medicare patients
- 364vs 1602.3 times
- Part D claims
- 1,577vs 6182.6 times
Medians across 5,015 family medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Johnston'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert B. Johnston treated 364 Medicare patients in 2024, average age 72
CMS counts 364 Medicare patients who saw Dr. Johnston in 2024. The largest group is 65 to 74, with 175 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 40, with 68% women.
Dr. Johnston's Medicare patients by age, 2024
Dr. Johnston's Medicare patients by sex, 2024
- Women21860%
- Men14640%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis46%
- Diabetes30%
- Anxiety28%
- Ischemic heart disease24%
- Mood disorders24%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert B. Johnston wrote 1,686 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 1,686 Medicare Part D claims for 729 patients. 92% of them were for generic drugs. CMS names the drug for 1,577 of them, across 23 drugs with 11 or more claims each, at $13,205 in total drug cost. In 2023, CMS named 775 claims across 15 drugs.
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic1,545 claims92%
- Brand-name and other141 claims8%
Dr. Johnston'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. Johnston's Part D claims, 2024
- Opioids3%44 of 1,686 claims
- Antibiotics42%700 of 1,686 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: 7752024: 1,577103%
Drugs named by CMS: 23 in 2024, 15 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. Robert B. Johnston takes part in Medicare
Dr. Johnston 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. Robert B. Johnston received $42 in industry payments from 2017 to 2025
CMS Open Payments shows 3 general payments to Dr. Johnston from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $16.
General payments to Dr. Johnston by program year, 2017 to 2025
Companies that paid Dr. Johnston the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert B. Johnston graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Johnston graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert B. Johnston'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) |
| 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. Robert B. Johnston
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. Robert B. Johnston's NPI number?
Dr. Robert B. Johnston's NPI number is 1720016686. It was assigned on June 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert B. Johnston?
Dr. Robert B. Johnston is a family medicine physician in Champaign, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Robert B. Johnston practice?
Dr. Johnston practices at 101 W University Ave, Champaign, IL 61820. Dr. Johnston's primary practice is Christie Clinic Amblatory Surgery Center in Champaign, Illinois. Dmand AI also links Dr. Johnston to 1 breast imaging center, 1 group practice or clinic and 1 medical group.
What is Dr. Robert B. Johnston's office phone number?
The practice phone on file for Dr. Johnston is (217) 366-1270.
What is Dr. Robert B. Johnston's medical license number?
Dr. Johnston holds Illinois license 036090080.
What medical group is Dr. Robert B. Johnston part of?
Dr. Johnston is linked to Christie Clinic. Dmand AI links Dr. Johnston to 1 more medical group.
Does Dr. Robert B. Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 665 services in 2024, and Dr. Johnston accepts Medicare assignment.
How many Medicare patients does Dr. Robert B. Johnston see?
CMS counts 364 Medicare patients who saw Dr. Johnston in 2024, with an average age of 72.
What services does Dr. Robert B. Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and lab and pathology test (81002).
Where did Dr. Robert B. Johnston go to medical school?
Dr. Johnston graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1992.
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What drugs does Dr. Robert B. Johnston prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Methylprednisolone, Amoxicillin-Clavulanate Potass and Fluconazole.
Has Dr. Robert B. Johnston received payments from drug or device companies?
CMS Open Payments shows $42 in general payments to Dr. Johnston from 3 companies from 2017 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Robert B. Johnston been practicing?
Dr. Johnston graduated from medical school in 1992, 34 years ago.
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