REGINA ANGELEYNE TAN PA-C
NPI 1851174353
Physician Assistant - Surgical in Palos Heights, IL

NPI Status: Active since August 17, 2023

Contact Information

12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL
ZIP 60463
Phone: (708) 923-4200
Fax: (708) 923-4201

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  • Individual
  • Female
  • Years of Experience 3
  • Physician Assistant
  • Surgical
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About REGINA TAN

This page provides the complete NPI Profile along with additional information for Regina Tan, a provider established in Palos Heights, Illinois with a medical specialization in Physician Assistant, focusing in surgical and more than 3 years of experience. The healthcare provider is registered in the NPI registry with number 1851174353 assigned on August 2023. The practitioner's primary taxonomy code is 363AS0400X with license number 085010064 (IL). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1851174353
Provider Name
REGINA ANGELEYNE TAN PA-C
Gender
Female
Entity Type
Individual
Location Address
12251 S 80TH AVE STE 1520 PALOS HEIGHTS, IL 60463
Location Phone
(708) 923-4200
Location Fax
(708) 923-4201
Mailing Address
2650 RIDGE AVE STE 1223 EVANSTON, IL 60201
Medical School Name
OTHER
Graduation Year
2023
Is Sole Proprietor?
No
Enumeration Date
08-17-2023
Last Update Date
03-26-2026
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Location Map

Secondary Locations

  • 2650 Ridge Ave
    Evanston, IL 60201
    (847) 570-2827

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

Physician Assistant Surgical

Taxonomy Code
363AS0400X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
085010064
License State
IL

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)
1363A00000XPhysician Assistants & Advanced Practice Nursing Providers

Physician Assistant

 

Medicare Participation & PECOS Enrollment Status

Regina Tan 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.

Regina Tan 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: 4082064803

    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: I20231220000842

    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

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Regina Tan is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
PALOS COMMUNITY HOSPITAL12251 SOUTH 80TH AVENUE
PALOS HEIGHTS, IL 60463
(708) 923-4000Acute Care Hospitals

Reviews for REGINA ANGELEYNE TAN PA-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 1851174353, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
1
Doubled → 2
Pos 6
7
Unchanged
Pos 7
4
Doubled → 8
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
3
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 5 → 10 → 1 1 → 2 4 → 8 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 2 + 7 + 8 + 3 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1851174353.

Other Providers at the Same Location


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

Nurse Practitioner
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Nurse Practitioner
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Nurse Practitioner
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Surgery (Vascular Surgery)
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Thoracic Surgery (Cardiothoracic Vascular Surgery)
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Internal Medicine (Cardiovascular Disease)
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Nurse Practitioner
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Nurse Practitioner
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Thoracic Surgery (Cardiothoracic Vascular Surgery)
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Internal Medicine (Clinical Cardiac Electrophysiology)
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Nurse Practitioner
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463
Physician Assistant
12251 S 80TH AVE STE 1520
PALOS HEIGHTS, IL 60463

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851174353, enumerated as an "individual" on August 17, 2023.

The provider is located at 12251 S 80TH AVE STE 1520 PALOS HEIGHTS, IL 60463 and the phone number is (708) 923-4200.

Physician Assistant with taxonomy code 363AS0400X and a focus in Surgical.

Regina Tan is affiliated with: PALOS COMMUNITY HOSPITAL.