Calla M. Holmgren, MD
Maternal & Fetal Medicine Physician · Park Ridge, IL
Calla M. Holmgren, MD is a maternal & fetal medicine physician with a practice address in Park Ridge, Illinois, and NPI 1194805002, issued on Oct 16, 2006. Check the license (Illinois 036.110796, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Calla M. Holmgren
- Credential
- MD
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License numbers
- 036.110796 IL
5611159-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 1875 Dempster St, Park Ridge, IL 60068
- Phone
- (847) 723-8610
- Enumerated
- Oct 16, 2006
- Record last updated
- Apr 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20200526002432); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1999
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 128 in Illinois → Look up another NPI →
Also registered at 1875 Dempster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Calla M. Holmgren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.110796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationPark Ridge, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Calla M. Holmgren among 128 maternal & fetal medicine physician records in Illinois
Calla M. Holmgren, MD is one of 128 maternal & fetal medicine physician records with a practice address in Illinois. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1999 · median 2003 among the 97 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in Illinois
There are 128 maternal & fetal medicine physician records in Illinois.
All 128 in Illinois → Every provider in Park Ridge → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Thomas Iannucci, M.D.Park Ridge, IL 600681225070014
- Benjamin Kase, M.D.Park Ridge, IL 600681881896637
- James Keller, MDPark Ridge, IL 600681639107360
- Brian McCulloch, M.D.Park Ridge, IL 600681013943117
- Rupesh Patel, DOPark Ridge, IL 600681568557692
- Alexandra Phelps, MDPark Ridge, IL 600681013413731
- Bruce Pielet, M.DPark Ridge, IL 600681669416756
- Rachel Ruderman, MD, MPHPark Ridge, IL 600681285026013
Common questions
What is Calla M. Holmgren, MD's NPI number?
Calla M. Holmgren, MD's National Provider Identifier (NPI) is 1194805002, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Calla M. Holmgren, MD located?
The NPPES record lists a practice address at 1875 Dempster St, Park Ridge, IL, 60068. Phone: (847) 723-8610. Providers update this record themselves, so call before visiting.
How can I verify Calla M. Holmgren, MD's license?
NPPES lists Illinois license number 036.110796, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.