IndividualActive
Henry Karlin, MD
NPI 1992917256 · Allergy & Immunology Physician · Mequon, WI
Henry Karlin, MD is a Allergy & Immunology Physician provider in Mequon, WI (NPI 1992917256).
Provider details
- NPI number
- 1992917256
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 13420 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
10945 N Port Washington Rd
Suite #208
Mequon, WI 53092
Phone: (414) 352-5890
Street-level locationGet directions
Mailing address
Po Box 637
Mequon, WI 53092-0637
Registry dates
- Enumerated
- 2007-05-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Henry Karlin's NPI number?
- Henry Karlin's National Provider Identifier (NPI) is 1992917256, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Karlin's specialty?
- Henry Karlin is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Henry Karlin located?
- Henry Karlin's practice location on file with NPPES is 10945 N Port Washington Rd, Mequon, WI 53092.
- What is Henry Karlin's phone number?
- The practice phone number listed in the NPPES registry for Henry Karlin is (414) 352-5890.
- Is Henry Karlin's NPI active?
- Yes — Henry Karlin's NPI (1992917256) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.