Dr. John A. Hamby, MD
- Medicare services, 2022
- 395
- Part D claims, 2022
- 35
- Industry payments
- $549
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 1200 S York Rd, Elmhurst, IL 60126-5626
- Practice phone
- Call (630) 758-8844
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Duly Health and Care
Physician office · Elmhurst, Illinois
Find Dr. Hamby'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 A. Hamby is a general surgeon in Elmhurst, Illinois
Dr. Hamby practices at Duly Health and Care in Elmhurst, Illinois.
Dr. Hamby's NPI, 1134108657, was assigned on January 12, 2006. Dr. Hamby graduated from Rush Medical College of Rush University in 1981. Dr. Hamby holds Illinois license 036071975.
- NPI
- 1134108657NPI Registry (opens in a new tab)
- NPI enumeration date
- January 12, 2006
- NPI status
- Active
- Practice phone
- (630) 758-8844
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John A. Hamby practices at 2 locations in Elmhurst, Illinois
Dr. Hamby's primary practice is Duly Health and Care, at 1200 S York Rd, Elmhurst, IL 60126-5626. The practice phone is (630) 758-8844. The NPI Registry lists Dr. Hamby's practice address as 155 E Brush Hill Rd, Elmhurst, IL 60126.
- Duly Health and CarePrimary1200 S York Rd, Elmhurst, IL 60126-5626Phone(630) 758-8844
- NPI Registry address155 E Brush Hill Rd, Elmhurst, IL 60126 · Dupage CountyPhone(630) 758-8838
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. John A. Hamby is affiliated with 1 site of care
Dr. Hamby's primary practice is Duly Health and Care in Elmhurst, Illinois.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John A. Hamby's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamby practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Duly Health and Care | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John A. Hamby is one of 1,217 general surgeons in Illinois
Surgery is Dr. Hamby's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hamby is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Hamby
Counts of general surgeons 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 A. Hamby billed Medicare for 395 services in 2022
CMS data shows 395 Medicare services from Dr. Hamby across 10 procedure codes in 2022. Medicare paid $29,217 for them.
Dr. Hamby's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 3772022: 3721%
- Surgery
- 2021: 02022: 12
- Lab and pathology
- 2021: 02022: 11
- Other services
- 2021: 132022: 0100%
Where Dr. Hamby's Medicare services took place, 2022
- In an office17745%
- In a facility21855%
Dr. Hamby compared with the Illinois median for general surgeons, 2022
- Dr. Hamby
- Illinois median
- Medicare services
- 395vs 1942.0 times
- Part D claims
- 35vs 2825% above
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Hamby's most billed Medicare procedure codes, 2022
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hamby and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John A. Hamby's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Hamby's median patient age at 58, with 100% women.
Dr. Hamby's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. John A. Hamby wrote 35 Medicare Part D claims in 2022
In 2022, Dr. Hamby wrote 35 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $90 in total drug cost. In 2021, CMS named 18 claims across 1 drug.
Dr. Hamby's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 182022: 3594%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John A. Hamby received $549 in industry payments from 2016 to 2022
CMS Open Payments shows 8 general payments to Dr. Hamby from 6 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Davol Inc. paid the most, $227.
General payments to Dr. Hamby by program year, 2016 to 2022
Companies that paid Dr. Hamby the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John A. Hamby graduated from Rush Medical College of Rush University
Dr. Hamby graduated from Rush Medical College of Rush University in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John A. Hamby'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 DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 A. Hamby
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 A. Hamby's NPI number?
Dr. John A. Hamby's NPI number is 1134108657. It was assigned on January 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John A. Hamby?
Dr. John A. Hamby is a general surgeon in Elmhurst, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John A. Hamby practice?
Dr. Hamby practices at 1200 S York Rd, Elmhurst, IL 60126-5626. Dr. Hamby also practices at 155 E Brush Hill Rd, Elmhurst, IL 60126. Dr. Hamby's primary practice is Duly Health and Care in Elmhurst, Illinois.
What is Dr. John A. Hamby's office phone number?
The practice phone on file for Dr. Hamby is (630) 758-8844.
What is Dr. John A. Hamby's medical license number?
Dr. Hamby holds Illinois license 036071975.
Does Dr. John A. Hamby accept Medicare?
Yes. CMS data shows Dr. Hamby billed Medicare for 395 services in 2022.
What services does Dr. John A. Hamby bill to Medicare?
In 2022, Dr. Hamby's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and hospital inpatient care (99222).
Where did Dr. John A. Hamby go to medical school?
Dr. Hamby graduated from Rush Medical College of Rush University in 1981.
What drugs does Dr. John A. Hamby prescribe most?
In 2022 Medicare Part D data, Dr. Hamby's most prescribed drugs by claims were Tramadol HCl.
Has Dr. John A. Hamby received payments from drug or device companies?
CMS Open Payments shows $549 in general payments to Dr. Hamby from 6 companies from 2016 to 2022. The largest total came from Davol Inc.
How long has Dr. John A. Hamby been practicing?
Dr. Hamby graduated from medical school in 1981, 45 years ago.
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