IRENE J LEE PA
NPI 1003778846
Physician Assistant - Medical in Fresno, CA

NPI Status: Active since December 01, 2025

Contact Information

7085 N CHESTNUT AVE STE 101
FRESNO, CA
ZIP 93720
Phone: (559) 323-9236
Fax: (559) 323-0294

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Medicare Participation & PECOS Status
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Physician Assistant
Medical
PECOS Enrolled

About IRENE LEE

This page provides the complete NPI Profile along with additional information for Irene Lee, a primary care provider established in Fresno, California with a medical specialization in Physician Assistant, focusing in medical . The healthcare provider is registered in the NPI registry with number 1003778846 assigned on December 2025. The practitioner's primary taxonomy code is 363AM0700X with license number 66946 (CA). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI: 1003778846
Provider Name: IRENE J LEE PA
Gender: Female
Entity Type: Individual
Location Address: 7085 N CHESTNUT AVE STE 101 FRESNO, CA 93720
Location Phone: (559) 323-9236
Location Fax: (559) 323-0294
Mailing Address: 2625 E DIVISADERO ST FRESNO, CA 93721
Mailing Phone: (559) 443-2682
Mailing Fax: (559) 323-0294
Is Sole Proprietor?: No
Enumeration Date: 12-01-2025
Last Update Date: 01-19-2026
Code Navigator

A primary care provider (PCP) like Irene Lee sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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: Physician Assistant Medical
Taxonomy Code: 363AM0700X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 66946
License State: CA

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)
1	363A00000X	Physician Assistants & Advanced Practice Nursing Providers	Physician Assistant	66946 (CA)

Medicare Participation & PECOS Enrollment Status

Irene Lee 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

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 1003778846, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 8

Check

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 0 → 0 7 → 14 → 5 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 4 + 7 + 1 + 6 + 8 + 8 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1003778846.