MR. LIAM CARLOS FORSTEIN
NPI 1366339749
Physician Assistant - Surgical in Rocky Hill, CT

NPI Status: Active since June 19, 2025

Contact Information

1111 CROMWELL AVE STE 404
ROCKY HILL, CT
ZIP 06067
Phone: (860) 525-4469

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  • Individual
  • Male
  • Years of Experience 1
  • Physician Assistant
  • Surgical
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About LIAM FORSTEIN

This page provides the complete NPI Profile along with additional information for Liam Forstein, a provider established in Rocky Hill, Connecticut with a medical specialization in Physician Assistant, focusing in surgical and more than one year of experience. He graduated from Wake Forest University School Of Medicine in 2025. The healthcare provider is registered in the NPI registry with number 1366339749 assigned on June 2025. The practitioner's primary taxonomy code is 363AS0400X with license number 7183 (CT). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1366339749
Provider Name
MR. LIAM CARLOS FORSTEIN
Gender
Male
Entity Type
Individual
Location Address
1111 CROMWELL AVE STE 404 ROCKY HILL, CT 06067
Location Phone
(860) 525-4469
Mailing Address
1111 CROMWELL AVE STE 403 ROCKY HILL, CT 06067
Mailing Phone
(860) 525-4469
Medical School Name
WAKE FOREST UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2025
Is Sole Proprietor?
Yes
Enumeration Date
06-19-2025
Last Update Date
04-08-2026
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Location Map

Secondary Locations

  • 326 Washington St
    Norwich, CT 06360
    (860) 889-8331

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.
7183
License State
CT

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

7183 (CT)

Medicare Participation & PECOS Enrollment Status

Liam Forstein 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.

Liam Forstein 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: 1850896390

    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: I20250925000563

    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

Reviews for MR. LIAM CARLOS FORSTEIN

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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 1366339749, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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
3
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
6
Unchanged
Pos 5
3
Doubled → 6
Pos 6
3
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
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 6 → 12 → 3 3 → 6 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 6 + 3 + 1 + 8 + 7 + 8 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1366339749.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Physician Assistant
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Orthopaedic Surgery
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Physician Assistant
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Orthopaedic Surgery (Sports Medicine)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Physician Assistant (Surgical)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Physician Assistant (Surgical)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Orthopaedic Surgery (Hand Surgery)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Podiatrist (Foot & Ankle Surgery)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Physician Assistant
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Orthopaedic Surgery (Hand Surgery)
1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067
Orthopaedic Surgery
1111 CROMWELL AVE STE 404, BLDG 4
ROCKY HILL, CT 06067

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366339749, enumerated as an "individual" on June 19, 2025.

The provider is located at 1111 CROMWELL AVE STE 404 ROCKY HILL, CT 06067 and the phone number is (860) 525-4469.

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