OrganizationActive
Maria Cecilia Dahn, M.D.
NPI 1548556491 · Clinic/Center · Oak Park, IL
Maria Cecilia Dahn, M.D. is a Clinic/Center organization in Oak Park, IL (NPI 1548556491).
Provider details
- NPI number
- 1548556491
- Entity type
- Organization
- Primary specialty
- Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Maria Dahn, Vice President(708) 856-2237
- License
- 036114820 (IL)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
1103 Westgate St
203
Oak Park, IL 60301-1088
Phone: (708) 856-2237
Street-level locationGet directions
Mailing address
1103 Westgate St
Oak Park, IL 60301-1088
Other names (DBA / former)
- Other name
- Jaroslaw P. Czarnkowski, M.d.s.c.
Registry dates
- Enumerated
- 2011-06-20
- Last updated
- 2011-06-20
Frequently asked questions
- What is Maria Cecilia Dahn, M.D.'s NPI number?
- Maria Cecilia Dahn, M.D.'s National Provider Identifier (NPI) is 1548556491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Maria Cecilia Dahn, M.D.?
- Maria Cecilia Dahn, M.D. is classified in the NPPES registry as Clinic/Center (Ambulatory Health Care Facilities).
- Where is Maria Cecilia Dahn, M.D. located?
- Maria Cecilia Dahn, M.D.'s practice location on file with NPPES is 1103 Westgate St, Oak Park, IL 60301-1088.
- What is Maria Cecilia Dahn, M.D.'s phone number?
- The practice phone number listed in the NPPES registry for Maria Cecilia Dahn, M.D. is (708) 856-2237.
- Who is the authorized official for Maria Cecilia Dahn, M.D.?
- The authorized official listed on Maria Cecilia Dahn, M.D.'s NPPES record is Maria Dahn, Vice President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Maria Cecilia Dahn, M.D.'s NPI active?
- Yes — Maria Cecilia Dahn, M.D.'s NPI (1548556491) is active in the NPPES registry as of the last update on 2011-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.