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Sidney Herszenson, M.D.
NPI 1841264074 · Dermatology Physician · Milwaukee, WI
Sidney Herszenson, M.D. is a Dermatology Physician provider in Milwaukee, WI (NPI 1841264074).
Provider details
- NPI number
- 1841264074
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 18537 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
2600 N Mayfair Rd
Suite 810
Milwaukee, WI 53226-1309
Phone: (414) 771-1122
Fax: (414) 771-1352
Street-level locationGet directions
Mailing address
801 York St
Manitowoc, WI 54220-4630
Registry dates
- Enumerated
- 2006-02-14
- Last updated
- 2014-02-17
Frequently asked questions
- What is Sidney Herszenson's NPI number?
- Sidney Herszenson's National Provider Identifier (NPI) is 1841264074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sidney Herszenson's specialty?
- Sidney Herszenson is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Sidney Herszenson located?
- Sidney Herszenson's practice location on file with NPPES is 2600 N Mayfair Rd, Milwaukee, WI 53226-1309.
- What is Sidney Herszenson's phone number?
- The practice phone number listed in the NPPES registry for Sidney Herszenson is (414) 771-1122.
- Is Sidney Herszenson's NPI active?
- Yes — Sidney Herszenson's NPI (1841264074) is active in the NPPES registry as of the last update on 2014-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.