ROBERT LORENZ PA-C
NPI 1962483123
Physician Assistant - Surgical in Evanston, IL

NPI Status: Active since November 07, 2005

Contact Information

2650 RIDGE AVE STE 3507
EVANSTON, IL
ZIP 60201
Phone: (847) 570-2868
Fax: (847) 733-5005

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  • Individual
  • Male
  • Physician Assistant
  • Surgical
  • PECOS Enrolled

About ROBERT LORENZ

This page provides the complete NPI Profile along with additional information for Robert Lorenz, a provider established in Evanston, Illinois with a medical specialization in Physician Assistant, focusing in surgical . The healthcare provider is registered in the NPI registry with number 1962483123 assigned on November 2005. The practitioner's primary taxonomy code is 363AS0400X with license number 085001935 (IL). The provider is registered as an individual and his NPI record was last updated March 2026.

NPI
1962483123
Provider Name
ROBERT LORENZ PA-C
Gender
Male
Entity Type
Individual
Location Address
2650 RIDGE AVE STE 3507 EVANSTON, IL 60201
Location Phone
(847) 570-2868
Location Fax
(847) 733-5005
Mailing Address
2650 RIDGE AVE STE 1223 EVANSTON, IL 60201
Is Sole Proprietor?
No
Enumeration Date
11-07-2005
Last Update Date
03-23-2026
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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.
085001935
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

085001935 (IL)

Medicare Participation & PECOS Enrollment Status

Robert Lorenz 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

  • 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

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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 1962483123, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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
9
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
2
Doubled → 4
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 6 → 12 → 3 4 → 8 3 → 6 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 2 + 2 + 8 + 8 + 6 + 1 + 4 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1962483123.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Physician Assistant
2650 RIDGE AVE STE 3507
EVANSTON, IL 60201
Physician Assistant (Surgical)
2650 RIDGE AVE STE 3507
EVANSTON, IL 60201
Physician Assistant (Surgical)
2650 RIDGE AVE STE 3507
EVANSTON, IL 60201

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1962483123, enumerated as an "individual" on November 07, 2005.

The provider is located at 2650 RIDGE AVE STE 3507 EVANSTON, IL 60201 and the phone number is (847) 570-2868.

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