WARREN TIMOTHY YAN PA-C
NPI 1730894916
Physician Assistant - Surgical in Lakewood, CA

NPI Status: Active since January 23, 2023

Contact Information

5750 DOWNEY AVE
STE 308
LAKEWOOD, CA
ZIP 90712
Phone: (562) 633-3787
Fax: (562) 633-1977

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  • Individual
  • Male
  • Years of Experience 4
  • Physician Assistant
  • Surgical
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About WARREN YAN

This page provides the complete NPI Profile along with additional information for Warren Yan, a provider established in Lakewood, California with a medical specialization in Physician Assistant, focusing in surgical and more than 4 years of experience. The healthcare provider is registered in the NPI registry with number 1730894916 assigned on January 2023. The practitioner's primary taxonomy code is 363AS0400X with license number PA64388 (CA). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1730894916
Provider Name
WARREN TIMOTHY YAN PA-C
Gender
Male
Entity Type
Individual
Location Address
5750 DOWNEY AVE STE 308 LAKEWOOD, CA 90712
Location Phone
(562) 633-3787
Location Fax
(562) 633-1977
Mailing Address
PO BOX 15848 NEWPORT BEACH, CA 92659
Mailing Phone
(657) 241-3600
Mailing Fax
(562) 633-1977
Medical School Name
OTHER
Graduation Year
2023
Is Sole Proprietor?
No
Enumeration Date
01-23-2023
Last Update Date
08-07-2024
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Location Map

Secondary Locations

  • 3828 Schaufele Ave Ste 320
    Long Beach, CA 90808
    (562) 348-4588

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.
PA64388
License State
CA

Medicare Participation & PECOS Enrollment Status

Warren Yan 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.

Warren Yan 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: 3577001940

    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: I20240815004523

    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

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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 1730894916, 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 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
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
3
Doubled → 6
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
1
Doubled → 2
Check
6
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 8 → 16 → 7 4 → 8 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 6 + 0 + 1 + 6 + 9 + 8 + 9 + 2 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1730894916.

Other Providers at the Same Location


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

Obstetrics & Gynecology
5750 DOWNEY AVE, SUITE 201
LAKEWOOD, CA 90712
Specialist
5750 DOWNEY AVE, SUITE 202
LAKEWOOD, CA 90712
Specialist
5750 DOWNEY AVE, SUITE 202
LAKEWOOD, CA 90712
Internal Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Internal Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Internal Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Internal Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Internal Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Internal Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Pain Medicine (Interventional Pain Medicine)
5750 DOWNEY AVE, #306
LAKEWOOD, CA 90712
Pain Medicine (Interventional Pain Medicine)
5750 DOWNEY AVE, SUITE 306
LAKEWOOD, CA 90712
Physical Therapist
5750 DOWNEY AVE, SUITE 301
LAKEWOOD, CA 90712
Physical Therapist
5750 DOWNEY AVE, #301
LAKEWOOD, CA 90712
Clinic/Center (Physical Therapy)
5750 DOWNEY AVE, #301
LAKEWOOD, CA 90712
Podiatrist
5750 DOWNEY AVE, SUITE 203
LAKEWOOD, CA 90712
Anesthesiology (Pain Medicine)
5750 DOWNEY AVE, SUITE 306
LAKEWOOD, CA 90712
Family Medicine
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Dermatology
5750 DOWNEY AVE, SUITE 100
LAKEWOOD, CA 90712
Specialist
5750 DOWNEY AVE, SUITE 306
LAKEWOOD, CA 90712
Family Medicine
5750 DOWNEY AVE, SUITE 206
LAKEWOOD, CA 90712

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1730894916, enumerated as an "individual" on January 23, 2023.

The provider is located at 5750 DOWNEY AVE STE 308 LAKEWOOD, CA 90712 and the phone number is (562) 633-3787.

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