Katie Ann Reilley Greniger, MSN, FNP-BC
Internal Medicine Physician · Grand Rapids, MN
Katie Ann Reilley Greniger, MSN, FNP-BC is an internal medicine physician with a practice address in Grand Rapids, Minnesota, and NPI 1356128524, issued on Sep 12, 2023. Check the license (Minnesota 10675, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Katie Ann Reilley Greniger
- Credential
- MSN, FNP-BC
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 10675 MN
Self-reported in NPPES; status is on the state search - Practice location
- 1601 Golf Course RD, Grand Rapids, MN 55744
- Phone
- (218) 326-3401
- Enumerated
- Sep 12, 2023
- Record last updated
- Sep 12, 2023
- Medicare enrollment
- Enrolled (PECOS I20231115002677); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,632 in Minnesota → Look up another NPI →
Also registered at 1601 Golf Course RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suzanne Aldrich, NP-CAdult Health Nurse Practitioner1265872261
- Edwin Anderson, MDFamily Medicine Physician1083691828
- Derek Beyer, MDObstetrics & Gynecology Physician1265492912
- Marit Bjordal, PHARMDPharmacist1629303417
- Andrew BlairCertified Registered Nurse Anesthetist1205559754
- Katrina Boden, CNPNurse Practitioner1336020882
Verify Katie Ann Reilley Greniger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 10675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,612 Medicare Part D claims for 724 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 69 claims were for opioids.
Most prescribed
- Atorvastatin Calcium122 claims
- Levothyroxine Sodium80 claims
- Omeprazole76 claims
- Losartan Potassium75 claims
- Lisinopril70 claims
- Amlodipine Besylate66 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.
Industry payments in 2024: $39.50
2 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Dermatology Professionals, PABaxter, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katie Ann Reilley Greniger among 2,632 internal medicine physician records in Minnesota
Katie Ann Reilley Greniger, MSN, FNP-BC is one of 2,632 internal medicine physician records with a practice address in Minnesota. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 91% of them.
- NPI issued2023 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2023 · median 2008 among the 1,700 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 internal medicine physician records list a practice address in Grand Rapids
They are 10 of the 476 NPPES records with a practice address in Grand Rapids, and 2,632 internal medicine physician records in Minnesota.
All 2,632 in Minnesota → Every provider in Grand Rapids → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Marc Fowler, MDGrand Rapids, MN 557441497732069
- Peter Friedlieb, MDGrand Rapids, MN 557441568449106
- Jamison Harker, MDGrand Rapids, MN 557441376520916
- Stacy Holl, DOGrand Rapids, MN 557441417241571
- Simon Lick, M.D.Grand Rapids, MN 557441922238823
- Keith Murphy, M.D.Grand Rapids, MN 557441508007659
- Roger Ralston, MDGrand Rapids, MN 557441609853258
- Brent Schotl, MDGrand Rapids, MN 557441356861876
Common questions
What is Katie Ann Reilley Greniger, MSN, FNP-BC's NPI number?
Katie Ann Reilley Greniger, MSN, FNP-BC's National Provider Identifier (NPI) is 1356128524, issued on Sep 12, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Katie Ann Reilley Greniger, MSN, FNP-BC located?
The NPPES record lists a practice address at 1601 Golf Course RD, Grand Rapids, MN, 55744. Phone: (218) 326-3401. Providers update this record themselves, so call before visiting.
How can I verify Katie Ann Reilley Greniger, MSN, FNP-BC's license?
NPPES lists Minnesota license number 10675, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katie Ann Reilley Greniger, MSN, FNP-BC prescribe under Medicare Part D?
In 2024, Katie Ann Reilley Greniger, MSN, FNP-BC had 2,612 Medicare Part D claims for 724 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.