IndividualActive
Richard Stalzer
NPI 1891915138 · Internal Medicine Physician · Chicago, IL
Richard Stalzer is a Internal Medicine Physician provider in Chicago, IL (NPI 1891915138).
Provider details
- NPI number
- 1891915138
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
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
30 West Chicago Ave
Suite 312
Chicago, IL 60610-4331
Phone: (312) 926-3964
Fax: (312) 926-3028
Street-level locationGet directions
Mailing address
86 West Canterbury Ln
Northfield, IL 60093-3110
Registry dates
- Enumerated
- 2007-04-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Richard Stalzer's NPI number?
- Richard Stalzer's National Provider Identifier (NPI) is 1891915138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Stalzer's specialty?
- Richard Stalzer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Stalzer located?
- Richard Stalzer's practice location on file with NPPES is 30 West Chicago Ave, Chicago, IL 60610-4331.
- What is Richard Stalzer's phone number?
- The practice phone number listed in the NPPES registry for Richard Stalzer is (312) 926-3964.
- Is Richard Stalzer's NPI active?
- Yes — Richard Stalzer's NPI (1891915138) 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.