Dr. Claude Winchester Hamilton, MD
- Medicare services, 2024
- 2,015
- Medicare patients, 2024
- 344
- Part D claims, 2024
- 3,617
- MIPS score, 2024
- 13
- Hospital affiliations
- 1
- Practice address
- 5145 N California Ave, Chicago, IL 60625
- Practice phone
- Call (773) 878-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Claude Winchester Hamilton is an internist in Chicago, Illinois
Dr. Hamilton practices at Swedish Hospital in Chicago, Illinois, part of Endeavor Health.
Dr. Hamilton's NPI, 1518074087, was assigned on August 23, 2006. Dr. Hamilton graduated from Creighton University School of Medicine in 1980. Dr. Hamilton holds Illinois license 036081593.
- NPI
- 1518074087NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678468576
- NPI enumeration date
- August 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 878-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Claude Winchester Hamilton practices at Swedish Hospital in Chicago, Illinois
Dr. Hamilton's primary practice is Swedish Hospital, at 5145 N California Ave, Chicago, IL 60625 in Cook County. The practice phone is (773) 878-8200.
- Swedish Hospital5145 N California Ave, Chicago, IL 60625 · Cook CountyPhone(773) 878-8200
Source: Dmand AI Affiliation Data
Dr. Claude Winchester Hamilton is affiliated with 8 sites of care and 1 medical group
Dr. Hamilton's primary practice is Swedish Hospital in Chicago, Illinois, part of Endeavor Health. The medical group on file is Healing Hands Physicians, Inc. Dmand AI also links Dr. Hamilton to 5 more home health agencies, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Claude Winchester Hamilton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamilton practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Swedish Hospital | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Claude Winchester Hamilton is one of 5,652 internists in Illinois
Internal medicine is Dr. Hamilton's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hamilton is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Hamilton
Counts of internists 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. Claude Winchester Hamilton billed Medicare for 2,015 services in 2024
CMS data shows 2,015 Medicare services from Dr. Hamilton across 7 procedure codes in 2024, for 344 Medicare patients. Medicare paid $154,260 for them. Every service was in an office.
Dr. Hamilton's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1,1692024: 1,34015%
- Office and hospital visits
- 2023: 6882024: 6752%
Dr. Hamilton compared with the Illinois median for internists, 2024
- Dr. Hamilton
- Illinois median
- Medicare services
- 2,015vs 5663.6 times
- Medicare patients
- 344vs 20865% above
- Part D claims
- 2,973vs 28410.5 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Hamilton's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Claude Winchester Hamilton treated 344 Medicare patients in 2024, average age 78
CMS counts 344 Medicare patients who saw Dr. Hamilton in 2024. The largest group is 85 and over, with 113 patients. 75% of them have arthritis, and 75% have high blood pressure. 67% are also on Medicaid. Their average risk score is 2.70, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hamilton's median patient age at 81, with 61% women.
Dr. Hamilton's Medicare patients by age, 2024
Dr. Hamilton's Medicare patients by sex, 2024
- Women23769%
- Men10731%
Chronic conditions among Dr. Hamilton's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Heart failure50%
- Chronic kidney disease46%
- Ischemic heart disease44%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
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 81
Patient panel by sex, all payers
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Claude Winchester Hamilton wrote 3,617 Medicare Part D claims in 2024
In 2024, Dr. Hamilton wrote 3,617 Medicare Part D claims for 260 patients. 84% of them were for generic drugs. CMS names the drug for 2,973 of them, across 92 drugs with 11 or more claims each, at $174,988 in total drug cost. In 2023, CMS named 2,359 claims across 69 drugs.
Dr. Hamilton's Part D claims by kind of drug, 2024
- Generic3,048 claims84%
- Brand-name470 claims13%
- Other99 claims3%
Dr. Hamilton's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Hamilton's Part D claims, 2024
- Opioids7%257 of 3,617 claims
- Antibiotics3%110 of 3,617 claims
- Antipsychotics, patients 65 and over1%32 of 3,617 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3592024: 2,97326%
Drugs named by CMS: 92 in 2024, 69 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Claude Winchester Hamilton scored 13 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 13 out of 100 for Dr. Hamilton for performance year 2024, reported individually. Dr. Hamilton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hamilton's MIPS scores, performance year 2024
- 13of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 44of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Claude Winchester Hamilton graduated from Creighton University School of Medicine
Dr. Hamilton graduated from Creighton University School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Claude Winchester Hamilton'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Clinician Public Reporting: Overall MIPS Performance (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. Claude Winchester Hamilton
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. Claude Winchester Hamilton's NPI number?
Dr. Claude Winchester Hamilton's NPI number is 1518074087. It was assigned on August 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Claude Winchester Hamilton?
Dr. Claude Winchester Hamilton is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Claude Winchester Hamilton practice?
Dr. Hamilton practices at 5145 N California Ave, Chicago, IL 60625. Dr. Hamilton's primary practice is Swedish Hospital in Chicago, Illinois, part of Endeavor Health. Dmand AI also links Dr. Hamilton to 5 home health agencies, 1 physician office and 1 group practice or clinic.
What is Dr. Claude Winchester Hamilton's office phone number?
The practice phone on file for Dr. Hamilton is (773) 878-8200.
What is Dr. Claude Winchester Hamilton's medical license number?
Dr. Hamilton holds Illinois license 036081593.
Which hospitals is Dr. Claude Winchester Hamilton affiliated with?
Dr. Hamilton practices at Swedish Hospital in Chicago, Illinois.
What medical group is Dr. Claude Winchester Hamilton part of?
Dr. Hamilton is linked to Healing Hands Physicians, Inc.
Does Dr. Claude Winchester Hamilton accept Medicare?
Yes. CMS data shows Dr. Hamilton billed Medicare for 2,015 services in 2024, and Dr. Hamilton accepts Medicare assignment.
What is Dr. Claude Winchester Hamilton's MIPS score?
Dr. Hamilton's MIPS final score for performance year 2024 is 13 out of 100, reported individually.
How many Medicare patients does Dr. Claude Winchester Hamilton see?
CMS counts 344 Medicare patients who saw Dr. Hamilton in 2024, with an average age of 78.
Show 4 more questionsShow fewer questions
What services does Dr. Claude Winchester Hamilton bill to Medicare?
In 2024, Dr. Hamilton's most billed Medicare services were home visit (99350), medicare service (G0179) and medicare service (G0181).
Where did Dr. Claude Winchester Hamilton go to medical school?
Dr. Hamilton graduated from Creighton University School of Medicine in 1980.
What drugs does Dr. Claude Winchester Hamilton prescribe most?
In 2024 Medicare Part D data, Dr. Hamilton's most prescribed drugs by claims were Tramadol HCl, Gabapentin and Amlodipine Besylate.
How long has Dr. Claude Winchester Hamilton been practicing?
Dr. Hamilton graduated from medical school in 1980, 46 years ago.
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