Sarah Elizabeth Halfmann, FNP
Family Nurse Practitioner · Chicago, IL
Sarah Elizabeth Halfmann, FNP is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1801273784, issued on Apr 30, 2015. Check the license (Illinois 209012769, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sarah Elizabeth Halfmann
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 209012769 IL
10.205147 CT
4704296683 MI
219928 MT
APRN03732 RI
Self-reported in NPPES; status is on the state search - Practice location
- 1645 West School Street, Chicago, IL 60657
- Phone
- (773) 245-5010
- Enumerated
- Apr 30, 2015
- Record last updated
- Jan 6, 2025
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Verify Sarah Elizabeth Halfmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209012769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family nurse practitioner in 2024
35 Medicare Part D claims for 15 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $18.11
1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Sarah Elizabeth Halfmann among 7,639 family nurse practitioner records in Illinois
Sarah Elizabeth Halfmann, FNP is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 24% of them.
- NPI issued2015 · 24% of these records are older, 70% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,567 family nurse practitioner records list a practice address in Chicago
They are 1,567 of the 63,379 NPPES records with a practice address in Chicago, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Chicago → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Joyce Allen, APN, FNP-BCChicago, IL 606571033481007
- Maria CataldoChicago, IL 606571477665784
- Judy Davis, APN,FNPChicago, IL 606571558421719
- Stephanie Gounder, FNP-BCChicago, IL 606571508008152
- Amy Gregory, APNChicago, IL 606571770810194
- Karen Hawk, APNChicago, IL 606571699056630
- Erin Kenar, FNP-BCChicago, IL 606571497180848
- Rosemarie MossmanChicago, IL 606571255678249
Common questions
What is Sarah Elizabeth Halfmann, FNP's NPI number?
Sarah Elizabeth Halfmann, FNP's National Provider Identifier (NPI) is 1801273784, issued on Apr 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Elizabeth Halfmann, FNP located?
The NPPES record lists a practice address at 1645 West School Street, Chicago, IL, 60657. Phone: (773) 245-5010. Providers update this record themselves, so call before visiting.
How can I verify Sarah Elizabeth Halfmann, FNP's license?
NPPES lists Illinois license number 209012769, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Sarah Elizabeth Halfmann, FNP prescribe under Medicare Part D?
In 2024, Sarah Elizabeth Halfmann, FNP had 35 Medicare Part D claims for 15 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.