Andrea Marie Oster, NP
Family Nurse Practitioner · Hastings, MI
Andrea Marie Oster, NP is a family nurse practitioner with a practice address in Hastings, Michigan, and NPI 1174207765, issued on Jun 14, 2023. Check the license (Michigan 4704330869, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrea Marie Oster
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 4704330869 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1108 W State St Ste 3, Hastings, MI 49058
- Phone
- (269) 945-0922
- Enumerated
- Jun 14, 2023
- Record last updated
- Jan 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20231030001897); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,356 in Michigan → Look up another NPI →
Also registered at 1108 W State St Ste 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Katherine Martin, PA-CMedical Physician Assistant1538442736
- Nora McCord, FNP-CNurse Practitioner1952065492
Verify Andrea Marie Oster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704330869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average family nurse practitioner in 2024
2,105 Medicare Part D claims for 400 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 22 claims were for opioids.
Most prescribed
- Omeprazole104 claims
- Atorvastatin Calcium93 claims
- Levothyroxine Sodium78 claims
- Lisinopril73 claims
- Amlodipine Besylate72 claims
- Gabapentin64 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.
Bills Medicare through one group practice
- Pennock HospitalHastings, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrea Marie Oster among 5,356 family nurse practitioner records in Michigan
Andrea Marie Oster, NP is one of 5,356 family nurse practitioner records with a practice address in Michigan. 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 2023, is newer than 79% of them.
- NPI issued2023 · 79% of these records are older, 14% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2022 · median 2019 among the 3,254 with a school on file
- Record last updated2024 · 40% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family nurse practitioner records list a practice address in Hastings
They are 13 of the 393 NPPES records with a practice address in Hastings, and 5,356 family nurse practitioner records in Michigan.
All 5,356 in Michigan → Every provider in Hastings → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Carolyn Baker, NPHastings, MI 490581922042829
- Michelle Firlit, FNPHastings, MI 490581740751775
- Grant Heide, MSN, FNPHastings, MI 490581093383242
- Taylor Hurt, NPHastings, MI 490581073265310
- Amber Juhl, NPHastings, MI 490581568933646
- Leslie Kearfott, DNP/ FNP-CHastings, MI 490581962838599
- Taylor Lukas, DNP, FNP-BC, BSN, RNHastings, MI 490581972217693
- Brenda Nyenhuis, FNPHastings, MI 490581568573012
Common questions
What is Andrea Marie Oster, NP's NPI number?
Andrea Marie Oster, NP's National Provider Identifier (NPI) is 1174207765, issued on Jun 14, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Andrea Marie Oster, NP located?
The NPPES record lists a practice address at 1108 W State St Ste 3, Hastings, MI, 49058. Phone: (269) 945-0922. Providers update this record themselves, so call before visiting.
How can I verify Andrea Marie Oster, NP's license?
NPPES lists Michigan license number 4704330869, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Andrea Marie Oster, NP prescribe under Medicare Part D?
In 2024, Andrea Marie Oster, NP had 2,105 Medicare Part D claims for 400 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.