Karen Maher, FNP
- Part D claims, 2024
- 4,538
- Industry payments
- $24
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 120 Tay Street, Rockford, IL 61102
- Practice phone
- Call (815) 968-0286
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Crusader Clinic - Rockford
FQHC - Main Site · Rockford, Illinois
Find Karen Maher'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.
Karen Maher is a family nurse practitioner in Rockford, Illinois
Karen Maher practices at Crusader Clinic - Rockford in Rockford, Illinois.
Karen Maher's NPI, 1306297007, was assigned on June 24, 2016. Karen Maher holds Illinois license 209014377.
- NPI
- 1306297007NPI Registry (opens in a new tab)
- NPI enumeration date
- June 24, 2016
- NPI status
- Active
- Practice phone
- (815) 968-0286
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Karen Maher practices at 2 locations in Rockford, Illinois
Karen Maher's primary practice is Crusader Clinic - Rockford, at 120 Tay Street, Rockford, IL 61102 in Winnebago County. The practice phone is (815) 968-0286. Karen Maher also practices at Crusader Clinic, 1200 W State St, Rockford, IL 61102.
- Crusader Clinic - RockfordPrimary120 Tay Street, Rockford, IL 61102 · Winnebago CountyPhone(815) 968-0286
- Crusader Clinic1200 W State St, Rockford, IL 61102 · Winnebago CountyPhone(815) 490-1600
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Karen Maher is affiliated with 1 site of care and 1 medical group
Karen Maher's primary practice is Crusader Clinic - Rockford in Rockford, Illinois. The medical group on file is Crusader Community Health. Karen Maher's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Maher's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Maher practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Crusader Clinic - Rockford | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Maher is one of 7,275 family nurse practitioners in Illinois
Family is Karen Maher's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Karen Maher is licensed in Illinois.
Specialties and state licenses
- Family nurse practitioner, IllinoisPrimary
Family nurse practitioners near Karen Maher
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 Maher's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Karen Maher's median patient age at 57, with 57% women.
Karen Maher's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Karen Maher wrote 4,538 Medicare Part D claims in 2024
In 2024, Karen Maher wrote 4,538 Medicare Part D claims for 337 patients. 73% of them were for generic drugs.
Karen Maher's Part D claims by kind of drug, 2024
- Generic3,317 claims73%
- Brand-name1,166 claims26%
- Other55 claims1%
Drug classes CMS tracks in Karen Maher's Part D claims, 2024
- Opioids2%75 of 4,538 claims
- Antibiotics2%76 of 4,538 claims
- Antipsychotics, patients 65 and over1%32 of 4,538 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Karen Maher received $24 in industry payments in 2025
CMS Open Payments shows 1 general payment to Karen Maher from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Exact Sciences Corporation paid the most, $24.
Companies that paid Karen Maher the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Karen Maher'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 Affiliation DataDmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Karen Maher
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 Maher's NPI number?
Karen Maher's NPI number is 1306297007. It was assigned on June 24, 2016, and it is active in the NPI Registry.
What does Karen Maher specialize in?
Karen Maher is a family nurse practitioner in Rockford, Illinois. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Karen Maher practice?
Karen Maher practices at 120 Tay Street, Rockford, IL 61102. Karen Maher also practices at 1200 W State St, Rockford, IL 61102. Karen Maher's primary practice is Crusader Clinic - Rockford in Rockford, Illinois.
What is Karen Maher's office phone number?
The practice phone on file for Karen Maher is (815) 968-0286.
What is Karen Maher's medical license number?
Karen Maher holds Illinois license 209014377.
What medical group is Karen Maher part of?
Karen Maher is linked to Crusader Community Health.
Has Karen Maher received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Karen Maher from 1 company from 2025 to 2025. The largest total came from Exact Sciences Corporation.
How long has Karen Maher been practicing?
Karen Maher's NPI was assigned in 2016.
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