Aileen Benjakul, MD
Internal Medicine Physician · Union Grove, WI
Aileen Benjakul, MD is an internal medicine physician with a practice address in Union Grove, Wisconsin, and NPI 1669491130, issued on Jul 18, 2006. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Aileen Benjakul
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 21425 Spring St, Union Grove, WI 53182
- Phone
- (262) 878-7001
- Enumerated
- Jul 18, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (262) 878-7024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 21425 Spring St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Aileen Benjakul in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck 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 internal medicine physician in 2024
85 Medicare Part D claims for 12 beneficiaries, against an average of 3,176 among the 108,855 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.
Aileen Benjakul among 2,078 internal medicine physician records in Wisconsin
Aileen Benjakul, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2007 · 55% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 internal medicine physician records list a practice address in Union Grove
They are 2 of the 87 NPPES records with a practice address in Union Grove, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Union Grove → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anne Schlimgen, MDUnion Grove, WI 531821003921289
- Kristin Cassidy, MDTwin Lakes, WI 531811366451411
- Satish Lahiri, MDWaterford, WI 531851619026994
- Alok Srivastava, MDWaterford, WI 531851568418937
- Margaret BarrettWaukesha, WI 531861912161647
- Bruce Berry, M.D.Waukesha, WI 531861710065230
- Cassandra Edwards, DOWaukesha, WI 531861598027203
- Melissa Kalt, MDWaukesha, WI 531861326011701
Common questions
What is Aileen Benjakul, MD's NPI number?
Aileen Benjakul, MD's National Provider Identifier (NPI) is 1669491130, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Aileen Benjakul, MD located?
The NPPES record lists a practice address at 21425 Spring St, Union Grove, WI, 53182. Phone: (262) 878-7001. Providers update this record themselves, so call before visiting.
How can I verify Aileen Benjakul, MD's license?
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 Aileen Benjakul, MD prescribe under Medicare Part D?
In 2024, Aileen Benjakul, MD had 85 Medicare Part D claims for 12 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.