CALLA M HOLMGREN MD
NPI 1194805002
Obstetrics & Gynecology - Maternal & Fetal Medicine in Park Ridge, IL

NPI Status: Active since October 16, 2006

Contact Information

1875 DEMPSTER ST
PARK RIDGE, IL
ZIP 60068
Phone: (847) 723-8610

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  • Individual
  • Female
  • Years of Experience 27
  • Obstetrics & Gynecology
  • Maternal & Fetal Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About CALLA HOLMGREN

This page provides the complete NPI Profile along with additional information for Calla Holmgren, a women's health care provider established in Park Ridge, Illinois with a medical specialization in Obstetrics & Gynecology, focusing in maternal & fetal medicine and more than 27 years of experience. She graduated from Medical College Of Wisconsin in 1999. The healthcare provider is registered in the NPI registry with number 1194805002 assigned on October 2006. The practitioner's primary taxonomy code is 207VM0101X with license number 036.110796 (IL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1194805002
Provider Name
CALLA M HOLMGREN MD
Gender
Female
Entity Type
Individual
Location Address
1875 DEMPSTER ST PARK RIDGE, IL 60068
Location Phone
(847) 723-8610
Mailing Address
29373 NETWORK PL CHICAGO, IL 60673
Medical School Name
MEDICAL COLLEGE OF WISCONSIN
Graduation Year
1999
Is Sole Proprietor?
No
Enumeration Date
10-16-2006
Last Update Date
04-17-2025
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Women's health care providers like Calla Holmgren treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Obstetrics & Gynecology Maternal & Fetal Medicine

Taxonomy Code
207VM0101X
Type
Allopathic & Osteopathic Physicians
License No.
036.110796
License State
IL
Taxonomy Description
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207VM0101XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology
Maternal & Fetal Medicine

5611159-1205 (UT)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Clear Gold - EPO
  • Clear Gold + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Silver - EPO
  • Elite Silver + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Principal Bronze HSA - EPO
  • Principal Bronze HSA + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Calla Holmgren is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Calla Holmgren is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 8022083385

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20200526002432

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $34.71 for a new patient copayment and $18.7 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 60068 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $138.86
  • Minimum New Patient Price $60.08
  • Maximum New Patient Price $183.39
  • Average New Patient Copayment $34.71
  • Minimum New Patient Copayment $15.02
  • Maximum New Patient Copayment $45.84

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $74.8
  • Minimum Established Patient Price $18.97
  • Maximum Established Patient Price $148.12
  • Average Established Patient Copayment $18.7
  • Minimum Established Patient Copayment $4.74
  • Maximum Established Patient Copayment $37.03

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1194805002, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
0
Unchanged
Pos 9
0
Doubled → 0
Check
2
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 8 → 16 → 7 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 1 + 8 + 4 + 1 + 6 + 0 + 1 + 0 + 0 + 0 + 24 = 48

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1194805002.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Obstetrics & Gynecology
1875 DEMPSTER ST, SUITE 145
PARK RIDGE, IL 60068
Otolaryngology (Otolaryngology/Facial Plastic Surgery)
1875 DEMPSTER ST, STE 301
PARK RIDGE, IL 60068
Otolaryngology (Otolaryngology/Facial Plastic Surgery)
1875 DEMPSTER ST, STE 301
PARK RIDGE, IL 60068
Psychologist
1875 DEMPSTER ST, #465
PARK RIDGE, IL 60068
Dentist (General Practice)
1875 DEMPSTER ST, SUITE 495
PARK RIDGE, IL 60068
Anesthesiology
1875 DEMPSTER ST, SUITE 405
PARK RIDGE, IL 60068
Obstetrics & Gynecology (Maternal & Fetal Medicine)
1875 DEMPSTER ST, SUITE 325
PARK RIDGE, IL 60068
Medical Genetics (Clinical Genetics (M.D.))
1875 DEMPSTER ST, SUITE 310
PARK RIDGE, IL 60068
Pediatrics
1875 DEMPSTER ST
PARK RIDGE, IL 60068
Specialist
1875 DEMPSTER ST, SUITE 245
PARK RIDGE, IL 60068
Obstetrics & Gynecology
1875 DEMPSTER ST, SUITE 340
PARK RIDGE, IL 60068
Obstetrics & Gynecology
1875 DEMPSTER ST, SUITE 245
PARK RIDGE, IL 60068
Obstetrics & Gynecology
1875 DEMPSTER ST, SUITE 245
PARK RIDGE, IL 60068
Obstetrics & Gynecology
1875 DEMPSTER ST, SUITE 245
PARK RIDGE, IL 60068
Specialist
1875 DEMPSTER ST, SUITE 560
PARK RIDGE, IL 60068
Internal Medicine (Cardiovascular Disease)
1875 DEMPSTER ST, SUITE 555
PARK RIDGE, IL 60068
Internal Medicine (Clinical Cardiac Electrophysiology)
1875 DEMPSTER ST, SUITE 555
PARK RIDGE, IL 60068
Ophthalmology
1875 DEMPSTER ST, SUITE 610
PARK RIDGE, IL 60068
Internal Medicine (Cardiovascular Disease)
1875 DEMPSTER ST, #604
PARK RIDGE, IL 60068

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1194805002, enumerated as an "individual" on October 16, 2006.

The provider is located at 1875 DEMPSTER ST PARK RIDGE, IL 60068 and the phone number is (847) 723-8610.

Obstetrics & Gynecology with taxonomy code 207VM0101X and a focus in Maternal & Fetal Medicine.

The provider might be accepting Accepts: Ambetter from Home State Health, Ambetter Health. Please consult your insurance carrier or call the provider to verify.