Dr. James J. Hamilton Jr., MD
- Medicare services, 2023
- 261
- Part D claims, 2023
- 28
- Industry payments
- $1,549
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 1700 SW 7th St, Topeka, KS 66606
- Practice phone
- Call (785) 295-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University of Kansas Health System St Francis Campus
Topeka, Kansas
Find Dr. Hamilton'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. James J. Hamilton Jr. is a general surgeon in Topeka, Kansas
Dr. Hamilton practices at University of Kansas Health System St Francis Campus in Topeka, Kansas.
Dr. Hamilton's NPI, 1275500282, was assigned on March 8, 2006. Dr. Hamilton graduated from University of Kansas School of Med (KC/Wich/Sal) in 1981. Dr. Hamilton holds Kansas license 04-21746.
- NPI
- 1275500282NPI Registry (opens in a new tab)
- NPI enumeration date
- March 8, 2006
- NPI status
- Active
- Practice phone
- (785) 295-8000
- 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 Practice Data
Dr. James J. Hamilton Jr. practices at University of Kansas Health System St Francis Campus in Topeka, Kansas
Dr. Hamilton's primary practice is University of Kansas Health System St Francis Campus, at 1700 SW 7th St, Topeka, KS 66606 in Shawnee County. The practice phone is (785) 295-8000.
- University of Kansas Health System St Francis Campus1700 SW 7th St, Topeka, KS 66606 · Shawnee CountyPhone(785) 295-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James J. Hamilton Jr. is affiliated with 2 sites of care and 2 medical groups
Dr. Hamilton's primary practice is University of Kansas Health System St Francis Campus in Topeka, Kansas. The medical group on file is Topeka Physician Group. Dmand AI also links Dr. Hamilton to 1 more ambulatory surgery center and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James J. Hamilton Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamilton practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Kansas Health System St Francis Campus | 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. James J. Hamilton Jr. is one of 254 general surgeons in Kansas
Surgery is Dr. Hamilton's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hamilton is licensed in Kansas.
Specialties and state licenses
- Surgery, KansasPrimary
General surgeons near Dr. Hamilton
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. James J. Hamilton Jr. billed Medicare for 261 services in 2023
CMS data shows 261 Medicare services from Dr. Hamilton across 7 procedure codes in 2023. Medicare paid $17,267 for them.
Dr. Hamilton's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 2842023: 2618%
- Surgery
- 2022: 252023: 0100%
Where Dr. Hamilton's Medicare services took place, 2023
- In an office11343%
- In a facility14857%
Dr. Hamilton compared with the Kansas median for general surgeons, 2023
- Dr. Hamilton
- Kansas median
- Medicare services
- 261vs 29311% below
- Part D claims
- 28vs 5145% below
Medians across 262 general surgeons in Kansas with Dmand AI profiles that report each measure.
Dr. Hamilton's most billed Medicare procedure codes, 2023
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. Hamilton and other general surgeons in Kansas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James J. Hamilton Jr.'s patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Hamilton's median patient age at 67, with 0% women.
Dr. Hamilton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. James J. Hamilton Jr. wrote 28 Medicare Part D claims in 2023
In 2023, Dr. Hamilton wrote 28 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $888 in total drug cost. In 2022, CMS named 50 claims across 4 drugs.
Dr. Hamilton's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 502023: 2844%
Drugs named by CMS: 2 in 2023, 4 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. James J. Hamilton Jr. received $1,549 in industry payments from 2016 to 2023
CMS Open Payments shows 62 general payments to Dr. Hamilton from 27 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 79% of the total. Medical Device Business Services, Inc. paid the most, $305.
General payments to Dr. Hamilton by program year, 2016 to 2023
General payments to Dr. Hamilton by kind, 2016 to 2023
- Food and beverage$1,21979%
- Education$33021%
Companies that paid Dr. Hamilton the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James J. Hamilton Jr. graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Hamilton graduated from University of Kansas School of Med (KC/Wich/Sal) in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James J. Hamilton Jr.'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 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 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. James J. Hamilton Jr.
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. James J. Hamilton Jr.'s NPI number?
Dr. James J. Hamilton Jr.'s NPI number is 1275500282. It was assigned on March 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James J. Hamilton Jr.?
Dr. James J. Hamilton Jr. is a general surgeon in Topeka, Kansas. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. James J. Hamilton Jr. practice?
Dr. Hamilton practices at 1700 SW 7th St, Topeka, KS 66606. Dr. Hamilton's primary practice is University of Kansas Health System St Francis Campus in Topeka, Kansas. Dmand AI also links Dr. Hamilton to 1 ambulatory surgery center and 1 medical group.
What is Dr. James J. Hamilton Jr.'s office phone number?
The practice phone on file for Dr. Hamilton is (785) 295-8000.
What is Dr. James J. Hamilton Jr.'s medical license number?
Dr. Hamilton holds Kansas license 04-21746.
What medical group is Dr. James J. Hamilton Jr. part of?
Dr. Hamilton is linked to Topeka Physician Group. Dmand AI links Dr. Hamilton to 1 more medical group.
Does Dr. James J. Hamilton Jr. accept Medicare?
Yes. CMS data shows Dr. Hamilton billed Medicare for 261 services in 2023.
What services does Dr. James J. Hamilton Jr. bill to Medicare?
In 2023, Dr. Hamilton's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and office visit, established patient (99213).
Where did Dr. James J. Hamilton Jr. go to medical school?
Dr. Hamilton graduated from University of Kansas School of Med (KC/Wich/Sal) in 1981.
What drugs does Dr. James J. Hamilton Jr. prescribe most?
In 2023 Medicare Part D data, Dr. Hamilton's most prescribed drugs by claims were Omeprazole and Sucralfate.
Has Dr. James J. Hamilton Jr. received payments from drug or device companies?
CMS Open Payments shows $1,549 in general payments to Dr. Hamilton from 27 companies from 2016 to 2023. The largest total came from Medical Device Business Services, Inc.
How long has Dr. James J. Hamilton Jr. been practicing?
Dr. Hamilton graduated from medical school in 1981, 45 years ago.
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