Calla M Holmgren, MD - Medicare Obstetrics/gynecology in Park Ridge, IL

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Calla M Holmgren, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Park Ridge, Illinois. She went to Medical College Of Wisconsin and graduated in 1999 and has 25 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Advocate Health And Hospitals Corporation and her current practice location is 1875 Dempster St, Park Ridge, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 723-8610.

Calla M Holmgren is licensed to practice in Illinois (license number 036.110796) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1194805002.

Contact Information

Calla M Holmgren, MD
1875 Dempster St,
Park Ridge, IL 60068-1186
(847) 723-8610
Not Available

Map and Direction




Physician's Profile

Full NameCalla M Holmgren
GenderFemale
SpecialityObstetrics/gynecology
Experience25 Years
Location1875 Dempster St, Park Ridge, Illinois
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Calla M Holmgren attended and graduated from Medical College Of Wisconsin in 1999
  NPI Data:
  • NPI Number: 1194805002
  • Provider Enumeration Date: 10/16/2006
  • Last Update Date: 12/15/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8022083385
  • Enrollment ID: I20200526002432

Medical Identifiers

Medical identifiers for Calla M Holmgren such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194805002NPI-NPPES
1194805002OtherNPI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine 5611159-1205 (Utah)Secondary
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine 036.110796 (Illinois)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advocate Health And Hospitals Corporation78108009352484

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Calla M Holmgren allows following entities to bill medicare on her behalf.
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameNorthshore University Healthsystem Faculty Practice Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497701882
PECOS PAC ID: 2163334699
Enrollment ID: O20040524000118
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003542184
PECOS PAC ID: 7810800935
Enrollment ID: O20220930002728

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Calla M Holmgren is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Calla M Holmgren, MD
Po Box 5889,
Salt Lake City, UT 84158-0859

Ph: (801) 585-5172		Calla M Holmgren, MD
1875 Dempster St,
Park Ridge, IL 60068-1186

Ph: (847) 723-8610

Reviews and Comments


Obstetrics & Gynecology Doctors in Park Ridge, IL

Dr. James R. Dolan, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1700 Luther Ln, Park Ridge, IL 60068
Phone: 847-723-8180    
Brian Peter Mcculloch, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1875 Dempster St, Suite 325, Park Ridge, IL 60068
Phone: 847-723-8610    
Dr. Therese Wos, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1875 Dempster St Ste 635645, Park Ridge, IL 60068
Phone: 847-825-7030    
Sasha Nuhn,
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 1875 Dempster St Ste 465, Park Ridge, IL 60068
Phone: 847-825-1100    
Dr. Isabel Gomez, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 1875 Dempster St, Suite 340, Park Ridge, IL 60068
Phone: 847-655-8500    
Jessica Leigh Koren, DO
Obstetrics & Gynecology
Medicare: May Accept Medicare Assignments
Practice Location: 1775 Dempster St, Park Ridge, IL 60068
Phone: 847-723-5986    
Sevgi Sipahi, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1875 Dempster St Ste 360, Park Ridge, IL 60068
Phone: 847-655-8530    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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