DR. WILLIAM TALBERT CHAPMAN M.D.
NPI 1164558920
Specialist in National City, CA

NPI Status: Active since February 26, 2007

Contact Information

2340 E 8TH ST
SUITE G
NATIONAL CITY, CA
ZIP 91950
Phone: (619) 475-3870
Fax: (619) 475-6402

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  • Individual
  • Male
  • Specialist
  • PECOS Enrolled

About WILLIAM CHAPMAN

This page provides the complete NPI Profile along with additional information for William Chapman, a provider established in National City, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1164558920 assigned on February 2007. The practitioner's primary taxonomy code is 174400000X with license number G38997 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1164558920
Provider Name
DR. WILLIAM TALBERT CHAPMAN M.D.
Gender
Male
Entity Type
Individual
Location Address
2340 E 8TH ST SUITE G NATIONAL CITY, CA 91950
Location Phone
(619) 475-3870
Location Fax
(619) 475-6402
Mailing Address
2340 E 8TH ST SUITE G NATIONAL CITY, CA 91950
Mailing Phone
(619) 475-3870
Mailing Fax
(619) 475-6402
Is Sole Proprietor?
Yes
Enumeration Date
02-26-2007
Last Update Date
07-08-2007
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
G38997
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
00G389970MEDICAID (05)CA 
A89675MEDICARE UPIN (02)CA 
G38997MEDICARE ID-TYPE UNSPECIFIED (04)CA 

Medicare Participation & PECOS Enrollment Status

William Chapman 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.

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 100 times for 64 patients

Measurement of brain wave activity (eeg), awake and asleep

The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.

This service was performed 29 times for 26 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 33 times for 33 patients

Ultrasound of both sides of head and neck blood flow

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

This service was performed 16 times for 16 patients

Ultrasound of leg arteries or artery grafts

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

This service was performed 21 times for 20 patients

Ultrasound study of arm or leg veins with compression and maneuvers

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

This service was performed 133 times for 124 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 1164558920, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
1
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
4
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
0
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 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 1 + 0 + 5 + 1 + 6 + 9 + 4 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1164558920.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Internal Medicine
2340 E 8TH ST, SUITE J
NATIONAL CITY, CA 91950
Specialist
2340 E 8TH ST, SUITE G
NATIONAL CITY, CA 91950
Family Medicine
2340 E 8TH ST, SUITE A
NATIONAL CITY, CA 91950
Family Medicine
2340 E 8TH ST, SUITE D
NATIONAL CITY, CA 91950
Internal Medicine
2340 E 8TH ST, SUITE J
NATIONAL CITY, CA 91950
Counselor (Addiction (Substance Use Disorder))
2340 E 8TH ST
NATIONAL CITY, CA 91950
Counselor (Addiction (Substance Use Disorder))
2340 E 8TH ST
NATIONAL CITY, CA 91950
Counselor (Addiction (Substance Use Disorder))
2340 E 8TH ST
NATIONAL CITY, CA 91950
Podiatrist
2340 E 8TH ST, SUITE A
NATIONAL CITY, CA 91950

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164558920, enumerated as an "individual" on February 26, 2007.

The provider is located at 2340 E 8TH ST SUITE G NATIONAL CITY, CA 91950 and the phone number is (619) 475-3870.

Specialist with taxonomy code 174400000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.