Richard J Siebert, M.d.,s,c.
NPI 1003022088 · Internal Medicine Physician · Lake Forest, IL
Richard J Siebert, M.d.,s,c. is a Internal Medicine Physician organization in Lake Forest, IL (NPI 1003022088).
Provider details
- NPI number
- 1003022088
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Richard Siebert, President(847) 234-8808
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-05-15
- Last updated
- 2020-08-22
Frequently asked questions
- What is Richard J Siebert, M.d.,s,c.'s NPI number?
- Richard J Siebert, M.d.,s,c.'s National Provider Identifier (NPI) is 1003022088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Richard J Siebert, M.d.,s,c.?
- Richard J Siebert, M.d.,s,c. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard J Siebert, M.d.,s,c. located?
- Richard J Siebert, M.d.,s,c.'s practice location on file with NPPES is 700 N Westmoreland Rd Ste B, Lake Forest, IL 60045-1672.
- What is Richard J Siebert, M.d.,s,c.'s phone number?
- The practice phone number listed in the NPPES registry for Richard J Siebert, M.d.,s,c. is (847) 234-8808.
- Who is the authorized official for Richard J Siebert, M.d.,s,c.?
- The authorized official listed on Richard J Siebert, M.d.,s,c.'s NPPES record is Richard Siebert, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Richard J Siebert, M.d.,s,c.'s NPI active?
- Yes — Richard J Siebert, M.d.,s,c.'s NPI (1003022088) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.