Dr. John Howard Perryman, MD
- Publications
- 1
- Industry payments
- $23
- Affiliated sites
- 3
- Medical group
- 1
- State license
- 1
- Practice address
- 2300 N Rockton Ave, Rockford, IL 61103
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercyhealth Physicians - HOPD
Acute Care Hospital outpatient department · Rockford, Illinois
Find Dr. Perryman'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 Howard Perryman is a pediatrician in Rockford, Illinois
Dr. Perryman practices at Mercyhealth Physicians - HOPD in Rockford, Illinois.
Dr. Perryman's NPI, 1235242496, was assigned on August 15, 2006. Dr. Perryman holds Illinois license 036-081300.
- NPI
- 1235242496NPI Registry (opens in a new tab)
- NPI enumeration date
- August 15, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Howard Perryman practices at Mercyhealth Physicians - HOPD in Rockford, Illinois
Dr. Perryman's primary practice is Mercyhealth Physicians - HOPD, at 2300 N Rockton Ave, Rockford, IL 61103.
- Mercyhealth Physicians - HOPD2300 N Rockton Ave, Rockford, IL 61103
Source: Dmand AI Affiliation Data
Dr. John Howard Perryman is affiliated with 3 sites of care and 1 medical group
Dr. Perryman's primary practice is Mercyhealth Physicians - HOPD in Rockford, Illinois. The medical group on file is Mercyhealth Physicians. Dmand AI also links Dr. Perryman to 1 more physician office and 1 group practice or clinic, each named with a free account. Dr. Perryman's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Howard Perryman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Perryman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercyhealth Physicians - HOPD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Howard Perryman is one of 2,423 pediatricians in Illinois
Pediatrics is Dr. Perryman's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Perryman is licensed in Illinois.
Specialties and state licenses
- Pediatrics, IllinoisPrimary
Pediatricians near Dr. Perryman
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 Howard Perryman's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Perryman's median patient age at 10, with 38% women.
Dr. Perryman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women38%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. John Howard Perryman has 1 publication on record
Dmand AI links 1 paper to Dr. Perryman in 2025.
Recent publications by Dr. Perryman
See who Dr. Perryman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Perryman works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Howard Perryman received $23 in industry payments from 2017 to 2020
CMS Open Payments shows 2 general payments to Dr. Perryman from 1 drug or device company from 2017 to 2020. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $23.
General payments to Dr. Perryman by program year, 2017 to 2020
Companies that paid Dr. Perryman the most, 2017 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Howard Perryman'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Howard Perryman
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 Howard Perryman's NPI number?
Dr. John Howard Perryman's NPI number is 1235242496. It was assigned on August 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Howard Perryman?
Dr. John Howard Perryman is a pediatrician in Rockford, Illinois. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. John Howard Perryman practice?
Dr. Perryman practices at 2300 N Rockton Ave, Rockford, IL 61103. Dr. Perryman's primary practice is Mercyhealth Physicians - HOPD in Rockford, Illinois. Dmand AI also links Dr. Perryman to 1 physician office and 1 group practice or clinic.
What is Dr. John Howard Perryman's medical license number?
Dr. Perryman holds Illinois license 036-081300.
What medical group is Dr. John Howard Perryman part of?
Dr. Perryman is linked to Mercyhealth Physicians.
Has Dr. John Howard Perryman received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Dr. Perryman from 1 company from 2017 to 2020. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. John Howard Perryman been practicing?
Dr. Perryman's NPI was assigned in 2006.
Does Dr. John Howard Perryman do research?
Dmand AI links 1 publication to Dr. Perryman.
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