Dr. Harold Christopher Hamann, MD
- Medicare services, 2024
- 892
- Medicare patients, 2024
- 355
- Part D claims, 2024
- 623
- Hospital affiliations
- 2
- Industry payments
- $4,036
- Practice address
- 5215 N California Ave Ste 601 Suite 601, Chicago, IL 60625
- Practice phone
- Call (773) 878-3627
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northshore University Healthsystem Faculty Practice Associates
Multi-specialty group site · Chicago, Illinois
Find Dr. Hamann's professional email, personal email and mobile number
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Dr. Harold Christopher Hamann is a urologist in Chicago, Illinois
Dr. Hamann practices at Northshore University Healthsystem Faculty Practice Associates in Chicago, Illinois.
Dr. Hamann's NPI, 1578097952, was assigned on April 12, 2017. Dr. Hamann holds Illinois license 036159169.
- NPI
- 1578097952NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284978263
- NPI enumeration date
- April 12, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (773) 878-3627
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harold Christopher Hamann practices at Northshore University Healthsystem Faculty Practice Associates in Chicago, Illinois
Dr. Hamann's primary practice is Northshore University Healthsystem Faculty Practice Associates, at 5215 N California Ave Ste 601 Suite 601, Chicago, IL 60625. The practice phone is (773) 878-3627.
- Northshore University Healthsystem Faculty Practice Associates5215 N California Ave Ste 601 Suite 601, Chicago, IL 60625Phone(773) 878-3627
Source: Dmand AI Affiliation Data
Dr. Harold Christopher Hamann is affiliated with 4 sites of care and 5 medical groups
Dr. Hamann's primary practice is Northshore University Healthsystem Faculty Practice Associates in Chicago, Illinois. Dr. Hamann is also affiliated with Swedish Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Hamann to 1 more hospital, 4 medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Harold Christopher Hamann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamann practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northshore University Healthsystem Faculty Practice Associates | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Harold Christopher Hamann is one of 513 urologists in Illinois
Urology is Dr. Hamann's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dmand AI has Dr. Hamann's licenses on file in 2 states: Illinois and Wisconsin.
Specialties and state licenses
- Urology, IllinoisPrimary
- Wisconsin license
Urologists near Dr. Hamann
Counts of urologists 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. Harold Christopher Hamann billed Medicare for 892 services in 2024
CMS data shows 892 Medicare services from Dr. Hamann across 16 procedure codes in 2024, for 355 Medicare patients. Medicare paid $62,313 for them.
Dr. Hamann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2072024: 475129%
- Other services
- 2023: 02024: 202
- Surgery
- 2023: 382024: 161324%
- Imaging
- 2023: 02024: 54
Where Dr. Hamann's Medicare services took place, 2024
- In an office44750%
- In a facility44550%
Dr. Hamann compared with the Illinois median for urologists, 2024
- Dr. Hamann
- Illinois median
- Medicare services
- 892vs 1,32333% below
- Medicare patients
- 355vs 49028% below
- Part D claims
- 523vs 35846% above
Medians across 498 urologists in Illinois with Dmand AI profiles that report each measure.
Dr. Hamann'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.
Need commercial claims for Dr. Hamann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hamann and other urologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Harold Christopher Hamann treated 355 Medicare patients in 2024, average age 77
CMS counts 355 Medicare patients who saw Dr. Hamann in 2024. The largest group is 75 to 84, with 136 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.76, 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. Hamann's median patient age at 65, with 16% women.
Dr. Hamann's Medicare patients by age, 2024
Dr. Hamann's Medicare patients by sex, 2024
- Women8123%
- Men27477%
Chronic conditions among Dr. Hamann's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Ischemic heart disease38%
- Chronic kidney disease37%
- Diabetes35%
- Mood disorders34%
- Cancer29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hamann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women16%
- Men84%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Harold Christopher Hamann wrote 623 Medicare Part D claims in 2024
In 2024, Dr. Hamann wrote 623 Medicare Part D claims for 251 patients. 92% of them were for generic drugs. CMS names the drug for 523 of them, across 12 drugs with 11 or more claims each, at $50,244 in total drug cost. In 2023, CMS named 117 claims across 3 drugs.
Dr. Hamann's Part D claims by kind of drug, 2024
- Generic573 claims92%
- Brand-name and other50 claims8%
Dr. Hamann'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. Hamann's Part D claims, 2024
- Antibiotics20%122 of 623 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: 1172024: 523347%
Drugs named by CMS: 12 in 2024, 3 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. Harold Christopher Hamann offers telehealth to Medicare patients
Dr. Hamann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hamann as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Harold Christopher Hamann received $4,036 in industry payments from 2022 to 2025
CMS Open Payments shows 44 general payments to Dr. Hamann from 14 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 80% of the total. Boston Scientific Corporation paid the most, $1,660.
General payments to Dr. Hamann by program year, 2022 to 2025
General payments to Dr. Hamann by kind, 2022 to 2025
- Food and beverage$3,24980%
- Honoraria$70017%
- Travel and lodging$872%
Companies that paid Dr. Hamann the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Harold Christopher Hamann'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Harold Christopher Hamann
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. Harold Christopher Hamann's NPI number?
Dr. Harold Christopher Hamann's NPI number is 1578097952. It was assigned on April 12, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Harold Christopher Hamann?
Dr. Harold Christopher Hamann is a urologist in Chicago, Illinois. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Harold Christopher Hamann practice?
Dr. Hamann practices at 5215 N California Ave Ste 601 Suite 601, Chicago, IL 60625. Dr. Hamann's primary practice is Northshore University Healthsystem Faculty Practice Associates in Chicago, Illinois. Dmand AI also links Dr. Hamann to 1 hospital, 4 medical groups and 1 group practice or clinic.
What is Dr. Harold Christopher Hamann's office phone number?
The practice phone on file for Dr. Hamann is (773) 878-3627.
What is Dr. Harold Christopher Hamann's medical license number?
Dr. Hamann holds Illinois license 036159169, one of the licenses on file in 2 states.
Which states has Dr. Harold Christopher Hamann been licensed in?
Dmand AI has state licenses on file for Dr. Hamann in Illinois and Wisconsin.
Which hospitals is Dr. Harold Christopher Hamann affiliated with?
Dr. Hamann is affiliated with Swedish Hospital. Dmand AI links Dr. Hamann to 1 more hospital.
What medical group is Dr. Harold Christopher Hamann part of?
Dr. Hamann is linked to IU Health Medical Group. Dmand AI links Dr. Hamann to 4 more medical groups.
Does Dr. Harold Christopher Hamann accept Medicare?
Yes. CMS data shows Dr. Hamann billed Medicare for 892 services in 2024, and Dr. Hamann accepts Medicare assignment.
Does Dr. Harold Christopher Hamann offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hamann as offering telehealth services.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Harold Christopher Hamann see?
CMS counts 355 Medicare patients who saw Dr. Hamann in 2024, with an average age of 77.
What services does Dr. Harold Christopher Hamann bill to Medicare?
In 2024, Dr. Hamann's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and hospital inpatient care (99231).
What drugs does Dr. Harold Christopher Hamann prescribe most?
In 2024 Medicare Part D data, Dr. Hamann's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Trospium Chloride.
Has Dr. Harold Christopher Hamann received payments from drug or device companies?
CMS Open Payments shows $4,036 in general payments to Dr. Hamann from 14 companies from 2022 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Harold Christopher Hamann been practicing?
Dr. Hamann graduated from medical school in 2017, 9 years ago.
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