Dr. John Alan Hart, MD
- Industry payments
- $52
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 5727 Strathmoor Dr, Rockford, IL 61107-5180
- Practice phone
- Call (815) 971-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr)
Multi-specialty group site · Rockford, Illinois
Find Dr. Hart'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 Alan Hart is a pediatrician in Mchenry, Illinois
Dr. Hart practices at Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr) in Rockford, Illinois.
Dr. Hart's NPI, 1073625208, was assigned on September 1, 2006. Dr. Hart holds Illinois license 036082450.
- NPI
- 1073625208NPI Registry (opens in a new tab)
- NPI enumeration date
- September 1, 2006
- NPI status
- Active
- Practice phone
- (815) 971-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Alan Hart practices in Rockford and Mchenry
Dr. Hart's primary practice is Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr), at 5727 Strathmoor Dr, Rockford, IL 61107-5180. The practice phone is (815) 971-2000. The NPI Registry lists Dr. Hart's practice address as 4201 W Medical Center Dr, Mchenry, IL 60050.
- Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr)Primary5727 Strathmoor Dr, Rockford, IL 61107-5180Phone(815) 971-2000
- NPI Registry address4201 W Medical Center Dr, Mchenry, IL 60050 · Mchenry CountyPhone(815) 398-1527
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John Alan Hart is affiliated with 2 sites of care and 2 medical groups
Dr. Hart's primary practice is Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr) in Rockford, Illinois. The medical group on file is Mercyhealth Physicians. Dmand AI also links Dr. Hart to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John Alan Hart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hart practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr) | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Alan Hart is one of 2,423 pediatricians in Illinois
Pediatrics is Dr. Hart's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Hart is licensed in Illinois.
Specialties and state licenses
- Pediatrics, IllinoisPrimary
Pediatricians near Dr. Hart
Counts of pediatricians 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 Alan Hart's patients have a median age of 19
Across all payers, Dmand AI patient panel data puts Dr. Hart's median patient age at 19, with 38% women.
Dr. Hart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 19
Patient panel by sex, all payers
- Women38%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. John Alan Hart received $52 in industry payments from 2016 to 2025
CMS Open Payments shows 4 general payments to Dr. Hart from 3 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $28.
General payments to Dr. Hart by program year, 2016 to 2025
Companies that paid Dr. Hart the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Alan Hart'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Alan Hart
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 Alan Hart's NPI number?
Dr. John Alan Hart's NPI number is 1073625208. It was assigned on September 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Alan Hart?
Dr. John Alan Hart is a pediatrician in Mchenry, Illinois. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. John Alan Hart practice?
Dr. Hart practices at 5727 Strathmoor Dr, Rockford, IL 61107-5180. Dr. Hart also practices at 4201 W Medical Center Dr, Mchenry, IL 60050. Dr. Hart's primary practice is Mercyhealth Physicians - Pediatrics - Rockford (Strathmoor Dr) in Rockford, Illinois. Dmand AI also links Dr. Hart to 1 group practice or clinic and 1 medical group.
What is Dr. John Alan Hart's office phone number?
The practice phone on file for Dr. Hart is (815) 971-2000.
What is Dr. John Alan Hart's medical license number?
Dr. Hart holds Illinois license 036082450.
What medical group is Dr. John Alan Hart part of?
Dr. Hart is linked to Mercyhealth Physicians. Dmand AI links Dr. Hart to 1 more medical group.
Has Dr. John Alan Hart received payments from drug or device companies?
CMS Open Payments shows $52 in general payments to Dr. Hart from 3 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. John Alan Hart been practicing?
Dr. Hart's NPI was assigned in 2006.
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