Ilsa Anne Sieg, FNP-C
Family Nurse Practitioner · Waite Park, MN
Ilsa Anne Sieg, FNP-C is a family nurse practitioner with a practice address in Waite Park, Minnesota, and NPI 1275902025, issued on Sep 23, 2015. Check the license (Minnesota CNP4113, as entered in NPPES) with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ilsa Anne Sieg
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- CNP4113 MN
Self-reported in NPPES; status is on the state search - Practice location
- 67 10TH Ave S, Waite Park, MN 56387
- Phone
- (320) 774-1083
- Enumerated
- Sep 23, 2015
- Record last updated
- Aug 19, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,335 in Minnesota → Look up another NPI →
Verify Ilsa Anne Sieg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
Search for license CNP4113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family nurse practitioner in 2024
116 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.
Most prescribed
- Atorvastatin Calcium14 claims
- Lisinopril12 claims
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.
Ilsa Anne Sieg among 3,335 family nurse practitioner records in Minnesota
Ilsa Anne Sieg, FNP-C is one of 3,335 family nurse practitioner records with a practice address in Minnesota. 70% 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 44% of them.
- NPI issued2015 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2016 · 50% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family nurse practitioner records list a practice address in Waite Park
They are 4 of the 597 NPPES records with a practice address in Waite Park, and 3,335 family nurse practitioner records in Minnesota.
All 3,335 in Minnesota → Every provider in Waite Park → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Valerie Carlson, CNPWaite Park, MN 563871780626606
- Braniesney Guevara, DNP, APRN, FNP-BCWaite Park, MN 563871922674522
- Emily Luitjens, MS, FNP-BC, PMHNP-BCWaite Park, MN 563871245587252
- Kayla BowersStarbuck, MN 563811205210267
- Joann Dreher, CNPSauk Rapids, MN 563791730012980
- Erin Bjork, RN., CNPSauk Centre, MN 563781861684656
- Megan SchneiderSauk Centre, MN 563781881248409
- Sarah Scott, DNPSauk Centre, MN 563781255195129
Common questions
What is Ilsa Anne Sieg, FNP-C's NPI number?
Ilsa Anne Sieg, FNP-C's National Provider Identifier (NPI) is 1275902025, issued on Sep 23, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ilsa Anne Sieg, FNP-C located?
The NPPES record lists a practice address at 67 10TH Ave S, Waite Park, MN, 56387. Phone: (320) 774-1083. Providers update this record themselves, so call before visiting.
How can I verify Ilsa Anne Sieg, FNP-C's license?
NPPES lists Minnesota license number CNP4113, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.
How much does Ilsa Anne Sieg, FNP-C prescribe under Medicare Part D?
In 2024, Ilsa Anne Sieg, FNP-C had 116 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.