Dr. Daniel R. Retzer, MD
- Medicare services, 2024
- 3,544
- Medicare patients, 2024
- 506
- Part D claims, 2024
- 11,165
- MIPS score, 2024
- 82
- Hospital affiliations
- 5
- Practice address
- 1625 S State St, Belvidere, IL 61008
- Practice phone
- Call (815) 961-2030
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UW Health Belvidere Hospital
Belvidere, Illinois
Find Dr. Retzer'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. Daniel R. Retzer is a family medicine physician in Belvidere, Illinois
Dr. Retzer practices at UW Health Belvidere Hospital in Belvidere, Illinois.
Dr. Retzer's NPI, 1063455079, was assigned on June 14, 2006. Dr. Retzer holds Illinois license 036069878.
- NPI
- 1063455079NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759425887
- NPI enumeration date
- June 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 961-2030
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel R. Retzer practices at UW Health Belvidere Hospital in Belvidere, Illinois
Dr. Retzer's primary practice is UW Health Belvidere Hospital, at 1625 S State St, Belvidere, IL 61008 in Boone County. The practice phone is (815) 961-2030.
- UW Health Belvidere Hospital1625 S State St, Belvidere, IL 61008 · Boone CountyPhone(815) 961-2030
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Daniel R. Retzer is affiliated with 10 sites of care and 1 medical group
Dr. Retzer's primary practice is UW Health Belvidere Hospital in Belvidere, Illinois. Dr. Retzer is also affiliated with University Hospital. The medical group on file is SwedishAmerican Medical Group. Dmand AI also links Dr. Retzer to 4 more hospitals, 2 home health agencies, 1 group practice or clinic and 1 hospice, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Daniel R. Retzer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Retzer practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UW Health Belvidere Hospital | Available with a free account |
| +9 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel R. Retzer is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Retzer's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Retzer is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Retzer
Counts of family medicine physicians 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. Daniel R. Retzer billed Medicare for 3,544 services in 2024
CMS data shows 3,544 Medicare services from Dr. Retzer across 23 procedure codes in 2024, for 506 Medicare patients. Medicare paid $110,812 for them. Every service was in an office.
Dr. Retzer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 960
- Other services
- 2023: 3472024: 770122%
- Office and hospital visits
- 2023: 6222024: 625No change
- Surgery
- 2023: 5282024: 58711%
- Tests and treatments
- 2023: 2572024: 28511%
- Lab and pathology
- 2023: 2192024: 2056%
- Imaging
- 2023: 1202024: 1127%
Dr. Retzer compared with the Illinois median for family medicine physicians, 2024
- Dr. Retzer
- Illinois median
- Medicare services
- 3,544vs 35610.0 times
- Medicare patients
- 506vs 1603.2 times
- Part D claims
- 10,385vs 61816.8 times
Medians across 5,015 family medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Retzer'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. Daniel R. Retzer treated 506 Medicare patients in 2024, average age 74
CMS counts 506 Medicare patients who saw Dr. Retzer in 2024. The largest group is 65 to 74, with 263 patients. 73% of them have high blood pressure, and 66% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Retzer's median patient age at 68, with 45% women.
Dr. Retzer's Medicare patients by age, 2024
Dr. Retzer's Medicare patients by sex, 2024
- Women23546%
- Men27154%
Chronic conditions among Dr. Retzer's Medicare patients, 2024
- High blood pressure73%
- High cholesterol66%
- Arthritis42%
- Diabetes28%
- Chronic kidney disease22%
- Ischemic heart disease22%
- Atrial fibrillation18%
- Anxiety13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Retzer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel R. Retzer wrote 11,165 Medicare Part D claims in 2024
In 2024, Dr. Retzer wrote 11,165 Medicare Part D claims for 861 patients. 91% of them were for generic drugs. CMS names the drug for 10,385 of them, across 128 drugs with 11 or more claims each, at $515,063 in total drug cost. In 2023, CMS named 9,176 claims across 123 drugs.
Dr. Retzer's Part D claims by kind of drug, 2024
- Generic10,205 claims91%
- Brand-name897 claims8%
- Other63 claims1%
Dr. Retzer'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. Retzer's Part D claims, 2024
- Opioids2%168 of 11,165 claims
- Antibiotics3%289 of 11,165 claims
- Antipsychotics, patients 65 and over0%13 of 11,165 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: 9,1762024: 10,38513%
Drugs named by CMS: 128 in 2024, 123 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. Daniel R. Retzer scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Retzer for performance year 2024, reported as part of a group. Dr. Retzer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Retzer's MIPS scores, performance year 2024
- 82of 100Final score
- 83.2of 100Quality
- 77of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Sources for Dr. Daniel R. Retzer's profile data
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FAQ
Frequently asked questions about Dr. Daniel R. Retzer
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What is Dr. Daniel R. Retzer's NPI number?
Dr. Daniel R. Retzer's NPI number is 1063455079. It was assigned on June 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel R. Retzer?
Dr. Daniel R. Retzer is a family medicine physician in Belvidere, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Daniel R. Retzer practice?
Dr. Retzer practices at 1625 S State St, Belvidere, IL 61008. Dr. Retzer's primary practice is UW Health Belvidere Hospital in Belvidere, Illinois. Dmand AI also links Dr. Retzer to 4 hospitals, 2 home health agencies, 1 group practice or clinic and 1 hospice.
What is Dr. Daniel R. Retzer's office phone number?
The practice phone on file for Dr. Retzer is (815) 961-2030.
What is Dr. Daniel R. Retzer's medical license number?
Dr. Retzer holds Illinois license 036069878.
Which hospitals is Dr. Daniel R. Retzer affiliated with?
Dr. Retzer is affiliated with University Hospital. Dmand AI links Dr. Retzer to 4 more hospitals.
What medical group is Dr. Daniel R. Retzer part of?
Dr. Retzer is linked to SwedishAmerican Medical Group.
Does Dr. Daniel R. Retzer accept Medicare?
Yes. CMS data shows Dr. Retzer billed Medicare for 3,544 services in 2024, and Dr. Retzer accepts Medicare assignment.
What is Dr. Daniel R. Retzer's MIPS score?
Dr. Retzer's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Daniel R. Retzer see?
CMS counts 506 Medicare patients who saw Dr. Retzer in 2024, with an average age of 74.
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What services does Dr. Daniel R. Retzer bill to Medicare?
In 2024, Dr. Retzer's most billed Medicare services were injected or infused drug (J1010), surgery: heart and blood vessels (36415) and medicare service (G2211).
What drugs does Dr. Daniel R. Retzer prescribe most?
In 2024 Medicare Part D data, Dr. Retzer's most prescribed drugs by claims were Losartan Potassium, Metoprolol Succinate and Lisinopril.
How long has Dr. Daniel R. Retzer been practicing?
Dr. Retzer graduated from medical school in 1983, 43 years ago.
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