MARGARET PFISTER FNP-C
NPI 1538042569
Nurse Practitioner - Family in Arlington Heights, IL

NPI Status: Active since July 28, 2025

Contact Information

2101 S ARLINGTON HEIGHTS RD
ARLINGTON HEIGHTS, IL
ZIP 60005
Phone: (847) 331-7873

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  • Individual
  • Female
  • Years of Experience 1
  • Nurse Practitioner
  • Family
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MARGARET PFISTER

This page provides the complete NPI Profile along with additional information for Margaret Pfister, a provider established in Arlington Heights, Illinois with a medical specialization in Nurse Practitioner, focusing in family and more than one year of experience. The healthcare provider is registered in the NPI registry with number 1538042569 assigned on July 2025. The practitioner's primary taxonomy code is 363LF0000X with license number 209033047 (IL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1538042569
Provider Name
MARGARET PFISTER FNP-C
Gender
Female
Entity Type
Individual
Location Address
2101 S ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL 60005
Location Phone
(847) 331-7873
Mailing Address
1008 BLAZING STAR ST SOUTH ELGIN, IL 60177
Mailing Phone
(847) 331-7873
Medical School Name
OTHER
Graduation Year
2025
Is Sole Proprietor?
No
Enumeration Date
07-28-2025
Last Update Date
08-26-2025
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A nurse practitioner (NP) like Margaret Pfister is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
209033047
License State
IL

Medicare Participation & PECOS Enrollment Status

Margaret Pfister 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.

Margaret Pfister 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: 2567952237

    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: I20251111000361

    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: $23.51 for a new patient copayment and $26.42 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 60005 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $94.06
  • Minimum New Patient Price $60.08
  • Maximum New Patient Price $183.39
  • Average New Patient Copayment $23.51
  • 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 99214

  • Average Established Patient Price $105.7
  • Minimum Established Patient Price $18.97
  • Maximum Established Patient Price $148.12
  • Average Established Patient Copayment $26.42
  • 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.

Reviews for MARGARET PFISTER FNP-C

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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 1538042569, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
5
Unchanged
Pos 3
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
4
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
9
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 3 → 6 0 → 0 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 0 + 4 + 4 + 5 + 1 + 2 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1538042569.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Specialist
2101 S ARLINGTON HEIGHTS RD, #108
ARLINGTON HEIGHTS, IL 60005
Specialist
2101 S ARLINGTON HEIGHTS RD, #108
ARLINGTON HEIGHTS, IL 60005
Internal Medicine (Endocrinology, Diabetes & Metabolism)
2101 S ARLINGTON HEIGHTS RD, STE. 111
ARLINGTON HEIGHTS, IL 60005
Specialist
2101 S ARLINGTON HEIGHTS RD, SUITE 155
ARLINGTON HEIGHTS, IL 60005
Internal Medicine (Endocrinology, Diabetes & Metabolism)
2101 S ARLINGTON HEIGHTS RD, 111
ARLINGTON HEIGHTS, IL 60005
Internal Medicine (Endocrinology, Diabetes & Metabolism)
2101 S ARLINGTON HEIGHTS RD, 111
ARLINGTON HEIGHTS, IL 60005
Non-Pharmacy Dispensing Site
2101 S ARLINGTON HEIGHTS RD, SUITE 165
ARLINGTON HEIGHTS, IL 60005
Anesthesiology (Pain Medicine)
2101 S ARLINGTON HEIGHTS RD, SUITE 165
ARLINGTON HEIGHTS, IL 60005
Dentist (General Practice)
2101 S ARLINGTON HEIGHTS RD, SUITE 117
ARLINGTON HEIGHTS, IL 60005
Dentist
2101 S ARLINGTON HEIGHTS RD
ARLINGTON HEIGHTS, IL 60005
Dietitian, Registered
2101 S ARLINGTON HEIGHTS RD
ARLINGTON HEIGHTS, IL 60005
Specialist
2101 S ARLINGTON HEIGHTS RD, #108
ARLINGTON HEIGHTS, IL 60005
Specialist
2101 S ARLINGTON HEIGHTS RD, 155
ARLINGTON HEIGHTS, IL 60005
Obstetrics & Gynecology (Reproductive Endocrinology)
2101 S ARLINGTON HEIGHTS RD
ARLINGTON HEIGHTS, IL 60005
Internal Medicine
2101 S ARLINGTON HEIGHTS RD, SUITE 108
ARLINGTON HEIGHTS, IL 60005
Internal Medicine
2101 S ARLINGTON HEIGHTS RD
ARLINGTON HEIGHTS, IL 60005
Internal Medicine
2101 S ARLINGTON HEIGHTS RD, SUITE 108
ARLINGTON HEIGHTS, IL 60005
Anesthesiology (Pain Medicine)
2101 S ARLINGTON HEIGHTS RD, SUITE 165
ARLINGTON HEIGHTS, IL 60005
Social Worker (Clinical)
2101 S ARLINGTON HEIGHTS RD
ARLINGTON HEIGHTS, IL 60005
Podiatrist (Foot & Ankle Surgery)
2101 S ARLINGTON HEIGHTS RD, SUITE 108
ARLINGTON HEIGHTS, IL 60005

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538042569, enumerated as an "individual" on July 28, 2025.

The provider is located at 2101 S ARLINGTON HEIGHTS RD ARLINGTON HEIGHTS, IL 60005 and the phone number is (847) 331-7873.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.