Henry Robert Karlin, MD
Allergy & Immunology Physician · Mequon, WI
Henry Robert Karlin, MD is an allergy & immunology physician with a practice address in Mequon, Wisconsin, and NPI 1992917256, issued on May 7, 2007. Check the license (Wisconsin 13420, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Henry Robert Karlin
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 13420 WI
Self-reported in NPPES; status is on the state search - Practice location
- 10945 N Port Washington RD, Mequon, WI 53092
- Phone
- (414) 352-5890
- Enumerated
- May 7, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 63 in Wisconsin → Look up another NPI →
Also registered at 10945 N Port Washington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lawrence Piloczewski, L.AC., M.S.O.M.Acupuncturist1386903151
- Philip Swoboda, FAAAAudiologist1457563173
Verify Henry Robert Karlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 13420Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Henry Robert Karlin among 63 allergy & immunology physician records in Wisconsin
Henry Robert Karlin, MD is one of 63 allergy & immunology physician records with a practice address in Wisconsin. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 60% of them.
- NPI issued2007 · 60% of these records are older, 29% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Wisconsin
There are 63 allergy & immunology physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 63 in Wisconsin → Every provider in Mequon → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Kristin Schroederus, MDMequon, WI 530971649314832
- Tobias Enright, M.D.Menomonee Falls, WI 530511184653362
- Kulwant Dhaliwal, MDKenosha, WI 531441952333510
- Sudip Ringwala, D.O.Kenosha, WI 531441588956197
- Mark Nordness, M.D.Mukwonago, WI 531491457324428
- Bruce Charous, M.D.Milwaukee, WI 532091356387419
- Anne Lent, MDMilwaukee, WI 532111477630705
- Melissa Chudnow, M.D.Milwaukee, WI 532221114999638
Common questions
What is Henry Robert Karlin, MD's NPI number?
Henry Robert Karlin, MD's National Provider Identifier (NPI) is 1992917256, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Henry Robert Karlin, MD located?
The NPPES record lists a practice address at 10945 N Port Washington RD, Mequon, WI, 53092. Phone: (414) 352-5890. Providers update this record themselves, so call before visiting.
How can I verify Henry Robert Karlin, MD's license?
NPPES lists Wisconsin license number 13420, 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.