Nestor C. Alabarca, MD
Internal Medicine Physician · Lake Geneva, WI
Nestor C. Alabarca, MD is an internal medicine physician with a practice address in Lake Geneva, Wisconsin, and NPI 1336157981, issued on Aug 3, 2006. Check the license (Wisconsin 20952, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Nestor C. Alabarca
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20952 WI
Self-reported in NPPES; status is on the state search - Practice location
- 146 E Geneva Square, Lake Geneva, WI 53147
- Phone
- (262) 249-5000
- Enumerated
- Aug 3, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (262) 249-7142
- Medicaid ID
- 30107300 WI
- Entity
- Type 1 · individual
Also registered at 146 E Geneva Square
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nestor C. Alabarca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 20952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Internal Medicine Physician providers in Wisconsin
There are 2,078 internal medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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Common questions
What is Nestor C. Alabarca, MD's NPI number?
Nestor C. Alabarca, MD's National Provider Identifier (NPI) is 1336157981, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nestor C. Alabarca, MD located?
The NPPES record lists a practice address at 146 E Geneva Square, Lake Geneva, WI, 53147. Phone: (262) 249-5000. Providers update this record themselves, so call before visiting.
How can I verify Nestor C. Alabarca, MD's license?
NPPES lists Wisconsin license number 20952, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.