DR. CHARLES R WILLIAMS M.D.
NPI 1760526743
Anesthesiology - Pain Medicine in Whittier, CA

NPI Status: Active since February 16, 2007

Contact Information

6331 GREENLEAF AVE # 8
WHITTIER, CA
ZIP 90601
Phone: (562) 556-8114

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  • Individual
  • Male
  • Anesthesiology
  • Pain Medicine
  • PECOS Enrolled

About CHARLES WILLIAMS

This page provides the complete NPI Profile along with additional information for Charles Williams, a provider established in Whittier, California with a medical specialization in Anesthesiology, focusing in pain medicine . The healthcare provider is registered in the NPI registry with number 1760526743 assigned on February 2007. The practitioner's primary taxonomy code is 207LP2900X with license number G51191 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1760526743
Provider Name
DR. CHARLES R WILLIAMS M.D.
Gender
Male
Entity Type
Individual
Location Address
6331 GREENLEAF AVE # 8 WHITTIER, CA 90601
Location Phone
(562) 556-8114
Mailing Address
8816 FOOTHILL BLVD STE 103 RANCHO CUCAMONGA, CA 91730
Mailing Phone
(909) 484-2865
Mailing Fax
Is Sole Proprietor?
Yes
Enumeration Date
02-16-2007
Last Update Date
04-11-2025
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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

Anesthesiology Pain Medicine

Taxonomy Code
207LP2900X
Type
Allopathic & Osteopathic Physicians
License No.
G51191
License State
CA
Taxonomy Description
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

Medicare Participation & PECOS Enrollment Status

Charles Williams 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

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Anesthesia for exam of colon using an endoscope

Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.

This service was performed 11 times for 11 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

This service was performed 12 times for 12 patients

Anesthesia for other procedure on large bowel using an endoscope

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

This service was performed 26 times for 26 patients

Anesthesia for procedure on small and large bowel using an endoscope

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

This service was performed 12 times for 12 patients

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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 1760526743, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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
7
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
0
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
2
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
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 5 → 10 → 1 6 → 12 → 3 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 2 + 0 + 1 + 0 + 2 + 1 + 2 + 7 + 8 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1760526743.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

General Practice
6331 GREENLEAF AVE # 8
WHITTIER, CA 90601
Pain Medicine (Interventional Pain Medicine)
6331 GREENLEAF AVE # 8
WHITTIER, CA 90601

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760526743, enumerated as an "individual" on February 16, 2007.

The provider is located at 6331 GREENLEAF AVE # 8 WHITTIER, CA 90601 and the phone number is (562) 556-8114.

Anesthesiology with taxonomy code 207LP2900X and a focus in Pain Medicine.