Karen Kaster, APNP
Family Medicine Physician · Green Bay, WI
Karen Kaster, APNP is a family medicine physician with a practice address in Green Bay, Wisconsin, and NPI 1386328342, issued on Jun 12, 2023. Check the license (Wisconsin 14065-33, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karen Kaster
- Credential
- APNP
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 14065-33 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2851 University Ave, Green Bay, WI 54311
- Phone
- (920) 431-2500
- Enumerated
- Jun 12, 2023
- Record last updated
- Jun 12, 2023
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 2851 University Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Kaster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 14065-33Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
149 Medicare Part D claims for 19 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium13 claims
- Lisinopril12 claims
- Nystop11 claims
- Tamsulosin Hcl11 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.
Karen Kaster among 3,765 family medicine physician records in Wisconsin
Karen Kaster, APNP is one of 3,765 family medicine physician records with a practice address in Wisconsin. 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 96% of them.
- NPI issued2023 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 family medicine physician records list a practice address in Green Bay
They are 94 of the 4,619 NPPES records with a practice address in Green Bay, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Green Bay → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Suzanne Barnes, DOGreen Bay, WI 543111700894433
- Sabeeha Bedi, MDGreen Bay, WI 543111982688842
- Thomas Boyd, MDGreen Bay, WI 543111396729166
- Timothy Fagre, MDGreen Bay, WI 543111093821829
- Barbara Franck, MDGreen Bay, WI 543111043201403
- Philip Goolsby, MDGreen Bay, WI 543111700991718
- Steven Halsey, MDGreen Bay, WI 543111104801596
- David Lang, MDGreen Bay, WI 543111174515357
Common questions
What is Karen Kaster, APNP's NPI number?
Karen Kaster, APNP's National Provider Identifier (NPI) is 1386328342, issued on Jun 12, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Karen Kaster, APNP located?
The NPPES record lists a practice address at 2851 University Ave, Green Bay, WI, 54311. Phone: (920) 431-2500. Providers update this record themselves, so call before visiting.
How can I verify Karen Kaster, APNP's license?
NPPES lists Wisconsin license number 14065-33, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Kaster, APNP prescribe under Medicare Part D?
In 2024, Karen Kaster, APNP had 149 Medicare Part D claims for 19 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.