John Ewing Harris, PhD
- Medicare patients, 2024
- 20
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 2921 Greenbriar Dr, Springfield, IL 62704
- Practice phone
- Call (217) 546-3118
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Psychological Services of Central Illinois
Springfield, Illinois
Find John Harris' 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.
John Ewing Harris is a psychologist in Springfield, Illinois
John Harris practices at Psychological Services of Central Illinois in Springfield, Illinois.
John Harris' NPI, 1558359828, was assigned on October 11, 2005. John Harris graduated from Texas Tech University Health Science Center School of Medicine in 1975. John Harris holds Illinois license 071005273.
- NPI
- 1558359828NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052481611
- NPI enumeration date
- October 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 546-3118
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John Ewing Harris practices at Psychological Services of Central Illinois in Springfield, Illinois
John Harris' primary practice is Psychological Services of Central Illinois, at 2921 Greenbriar Dr, Springfield, IL 62704 in Sangamon County. The practice phone is (217) 546-3118.
- Psychological Services of Central Illinois2921 Greenbriar Dr, Springfield, IL 62704 · Sangamon CountyPhone(217) 546-3118
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John Ewing Harris is affiliated with 2 sites of care and 1 medical group
John Harris' primary practice is Psychological Services of Central Illinois in Springfield, Illinois. The medical group on file is Psychological Services of Central Illinois, P.C. Dmand AI also links John Harris to 1 more group practice or clinic, 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 John Ewing Harris' practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Harris practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Psychological Services of Central Illinois | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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John Ewing Harris is one of 308 psychologists in Illinois
Psychologist is John Harris' primary specialty in the NPI Registry, under taxonomy code 103T00000X. John Harris is licensed in Illinois.
Specialties and state licenses
- Psychologist, IllinoisPrimary
Psychologists near John Harris
Counts of psychologists 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
John Ewing Harris treated 20 Medicare patients in 2024, average age 71
CMS counts 20 Medicare patients who saw John Harris in 2024. 75% of them have mood disorders, and 65% have depression. Their average risk score is 0.76, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John Harris' median patient age at 66, with 100% women.
Chronic conditions among John Harris' Medicare patients, 2024
- Mood disorders75%
- Depression65%
- High cholesterol65%
- Anxiety55%
Share of Medicare patients with each condition. A patient can have several.
John Harris' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How John Ewing Harris takes part in Medicare
John Harris 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)
John Ewing Harris graduated from Texas Tech University Health Science Center School of Medicine
John Harris graduated from Texas Tech University Health Science Center School of Medicine in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Ewing Harris'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 patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| 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 John Ewing Harris
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Ewing Harris' NPI number?
John Ewing Harris' NPI number is 1558359828. It was assigned on October 11, 2005, and it is active in the NPI Registry.
What does John Ewing Harris specialize in?
John Ewing Harris is a psychologist in Springfield, Illinois. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).
Where does John Ewing Harris practice?
John Harris practices at 2921 Greenbriar Dr, Springfield, IL 62704. John Harris' primary practice is Psychological Services of Central Illinois in Springfield, Illinois. Dmand AI also links John Harris to 1 group practice or clinic.
What is John Ewing Harris' office phone number?
The practice phone on file for John Harris is (217) 546-3118.
What is John Ewing Harris' medical license number?
John Harris holds Illinois license 071005273.
What medical group is John Ewing Harris part of?
John Harris is linked to Psychological Services of Central Illinois, P.C.
Does John Ewing Harris accept Medicare?
Yes. CMS lists John Harris as accepting Medicare assignment.
How many Medicare patients does John Ewing Harris see?
CMS counts 20 Medicare patients who saw John Harris in 2024, with an average age of 71.
Where did John Ewing Harris go to medical school?
John Harris graduated from Texas Tech University Health Science Center School of Medicine in 1975.
How long has John Ewing Harris been practicing?
John Harris graduated from medical school in 1975, 51 years ago.
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