TROY WILLIAMSON
NPI 1750166591
Physician Assistant in Los Alamitos, CA

NPI Status: Active since August 29, 2023

Contact Information

3751 KATELLA AVE
LOS ALAMITOS, CA
ZIP 90720
Phone: (562) 598-1311

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  • Individual
  • Male
  • Physician Assistant
  • PECOS Enrolled

About TROY WILLIAMSON

This page provides the complete NPI Profile along with additional information for Troy Williamson, a primary care provider established in Los Alamitos, California with a medical specialization in Physician Assistant. The healthcare provider is registered in the NPI registry with number 1750166591 assigned on August 2023. The practitioner's primary taxonomy code is 363A00000X with license number PA63942 (CA). The provider is registered as an individual and his NPI record was last updated 2 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1750166591
Provider Name
TROY WILLIAMSON
Gender
Male
Entity Type
Individual
Location Address
3751 KATELLA AVE LOS ALAMITOS, CA 90720
Location Phone
(562) 598-1311
Mailing Address
3449 WATERMARKE PL IRVINE, CA 92612
Mailing Phone
(606) 548-0352
Is Sole Proprietor?
Yes
Enumeration Date
08-29-2023
Last Update Date
01-27-2024
Code Navigator

A primary care provider (PCP) like Troy Williamson 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

Taxonomy Code
363A00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
PA63942
License State
CA
Taxonomy Description
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Medicare Participation & PECOS Enrollment Status

Troy Williamson 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

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 90720 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $96.36
  • Minimum New Patient Price $62.96
  • Maximum New Patient Price $187.6
  • Average New Patient Copayment $24.09
  • Minimum New Patient Copayment $15.74
  • Maximum New Patient Copayment $46.9

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $77.96
  • Minimum Established Patient Price $20.84
  • Maximum Established Patient Price $153.61
  • Average Established Patient Copayment $19.49
  • Minimum Established Patient Copayment $5.21
  • Maximum Established Patient Copayment $38.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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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 1750166591, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
5
Doubled → 10 → 1 + 0
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 6 → 12 → 3 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 0 + 0 + 2 + 6 + 1 + 2 + 5 + 1 + 8 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1750166591.

Other Providers at the Same Location


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

Radiology (Diagnostic Radiology)
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Radiology (Diagnostic Radiology)
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Radiology (Diagnostic Radiology)
3751 KATELLA AVE, LOS ALAMITOS MEDICAL CENTER
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Radiology (Diagnostic Radiology)
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Emergency Medicine
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Emergency Medicine
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Emergency Medicine
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Psychiatric Unit
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Emergency Medicine
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Emergency Medicine
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Radiology (Diagnostic Radiology)
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Internal Medicine (Nephrology)
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Anesthesiology
3751 KATELLA AVE
LOS ALAMITOS, CA 90720
Legal Medicine
3751 KATELLA AVE
LOS ALAMITOS, CA 90720

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750166591, enumerated as an "individual" on August 29, 2023.

The provider is located at 3751 KATELLA AVE LOS ALAMITOS, CA 90720 and the phone number is (562) 598-1311.

Physician Assistant with taxonomy code 363A00000X.