Karen Itzel Hammes, ARNP
- Medicare patients, 2024
- 55
- Part D claims, 2024
- 235
- MIPS score, 2024
- 80
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 200 Hawkins Drive, Iowa City, IA 52242
- Practice phone
- Call (319) 356-1616
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Karen Hammes' 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.
Karen Itzel Hammes is a family nurse practitioner in Iowa City, Iowa
Karen Hammes practices at University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa.
Karen Hammes' NPI, 1154868149, was assigned on January 27, 2017. Karen Hammes holds Iowa license A129729.
- NPI
- 1154868149NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517243256
- NPI enumeration date
- January 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (319) 356-1616
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Itzel Hammes practices at University of Iowa Health Care Medical Center in Iowa City, Iowa
Karen Hammes' primary practice is University of Iowa Health Care Medical Center, at 200 Hawkins Drive, Iowa City, IA 52242 in Johnson County. The practice phone is (319) 356-1616.
- University of Iowa Health Care Medical Center200 Hawkins Drive, Iowa City, IA 52242 · Johnson CountyPhone(319) 356-1616
Source: Dmand AI Affiliation Data
Karen Itzel Hammes is affiliated with 2 sites of care and 1 medical group
Karen Hammes' primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa. The medical group on file is Scanlan Center for School Mental Health Clinic. Dmand AI also links Karen Hammes to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Itzel Hammes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Hammes practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Iowa Health Care Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Itzel Hammes is one of 1,785 family nurse practitioners in Iowa
Family is Karen Hammes' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Karen Hammes is licensed in Iowa.
Specialties and state licenses
- Family nurse practitioner, IowaPrimary
Family nurse practitioners near Karen Hammes
Counts of family nurse practitioners 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
Karen Itzel Hammes treated 55 Medicare patients in 2024, average age 66
CMS counts 55 Medicare patients who saw Karen Hammes in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Karen Hammes' median patient age at 67, with 77% women.
Karen Hammes' Medicare patients by age, 2024
Karen Hammes' Medicare patients by sex, 2024
- Women4378%
- Men1222%
Chronic conditions among Karen Hammes' Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Arthritis60%
- Anxiety51%
- Mood disorders49%
- Depression45%
- Ischemic heart disease27%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Karen Hammes' 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
- Women77%
- Men23%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Karen Itzel Hammes wrote 235 Medicare Part D claims in 2024
In 2024, Karen Hammes wrote 235 Medicare Part D claims for 77 patients. 69% of them were for generic drugs.
Karen Hammes' Part D claims by kind of drug, 2024
- Generic163 claims69%
- Brand-name and other72 claims31%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Karen Itzel Hammes scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Karen Hammes for performance year 2024, reported as part of a group. Karen Hammes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Karen Hammes as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Karen Hammes' MIPS scores, performance year 2024
- 80of 100Final score
- 75.7of 100Quality
- 78of 100Promoting Interoperability
- 40of 100Improvement Activities
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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Sources for Karen Itzel Hammes'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 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 (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) |
| 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 Karen Itzel Hammes
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Itzel Hammes' NPI number?
Karen Itzel Hammes' NPI number is 1154868149. It was assigned on January 27, 2017, and it is active in the NPI Registry.
What does Karen Itzel Hammes specialize in?
Karen Itzel Hammes is a family nurse practitioner in Iowa City, Iowa. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Karen Itzel Hammes practice?
Karen Hammes practices at 200 Hawkins Drive, Iowa City, IA 52242. Karen Hammes' primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa. Dmand AI also links Karen Hammes to 1 group practice or clinic.
What is Karen Itzel Hammes' office phone number?
The practice phone on file for Karen Hammes is (319) 356-1616.
What is Karen Itzel Hammes' medical license number?
Karen Hammes holds Iowa license A129729.
Which hospitals is Karen Itzel Hammes affiliated with?
Karen Hammes practices at University of Iowa Health Care Medical Center in Iowa City, Iowa.
What medical group is Karen Itzel Hammes part of?
Karen Hammes is linked to Scanlan Center for School Mental Health Clinic.
Does Karen Itzel Hammes accept Medicare?
Yes. CMS lists Karen Hammes as accepting Medicare assignment.
Does Karen Itzel Hammes offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Karen Hammes as offering telehealth services.
What is Karen Itzel Hammes' MIPS score?
Karen Hammes' MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
How many Medicare patients does Karen Itzel Hammes see?
CMS counts 55 Medicare patients who saw Karen Hammes in 2024, with an average age of 66.
How long has Karen Itzel Hammes been practicing?
Karen Hammes graduated from medical school in 2013, 13 years ago.
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