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Frederick Sierles
NPI 1982828737 · Psychiatry Physician · North Chicago, IL
Frederick Sierles is a Psychiatry Physician provider in North Chicago, IL (NPI 1982828737).
Provider details
- NPI number
- 1982828737
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(83/100 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
83% 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
3333 Green Bay Rd
North Chicago, IL 60064-3037
Phone: (847) 578-8709
Fax: (847) 578-3328
Street-level locationGet directions
Mailing address
3333 Green Bay Rd
North Chicago, IL 60064-3037
Registry dates
- Enumerated
- 2007-04-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Frederick Sierles's NPI number?
- Frederick Sierles's National Provider Identifier (NPI) is 1982828737, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Sierles's specialty?
- Frederick Sierles is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Sierles located?
- Frederick Sierles's practice location on file with NPPES is 3333 Green Bay Rd, North Chicago, IL 60064-3037.
- What is Frederick Sierles's phone number?
- The practice phone number listed in the NPPES registry for Frederick Sierles is (847) 578-8709.
- Is Frederick Sierles's NPI active?
- Yes — Frederick Sierles's NPI (1982828737) 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.