WILLIAM PROVOSTY MD
NPI 1003440223
Psychiatry & Neurology - Forensic Psychiatry in Los Angeles, CA
NPI Status: Active since February 26, 2020
Contact Information
PO BOX 86125
LOS ANGELES, CA
ZIP 90086
Phone: (323) 409-4942
- Individual
- Male
- Psychiatry & Neurology
- Forensic Psychiatry
- PECOS Enrolled
About WILLIAM PROVOSTY
This page provides the complete NPI Profile along with additional information for William Provosty, a provider established in Los Angeles, California with a medical specialization in Psychiatry & Neurology, focusing in forensic psychiatry . The healthcare provider is registered in the NPI registry with number 1003440223 assigned on February 2020. The practitioner's primary taxonomy code is 2084F0202X with license number A200462 (CA). The provider is registered as an individual and his NPI record was last updated one year 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
- 1003440223
- Provider Name
- WILLIAM PROVOSTY MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- PO BOX 86125 LOS ANGELES, CA 90086
- Location Phone
- (323) 409-4942
- Mailing Address
- PO BOX 86125 LOS ANGELES, CA 90086
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-26-2020
- Last Update Date
- 11-10-2025
- Code Navigator
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
Psychiatry & Neurology Forensic Psychiatry
- Taxonomy Code
- 2084F0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A200462
- License State
- CA
- Taxonomy Description
- Forensic Psychiatry is a subspecialty with psychiatric focus on interrelationships with civil, criminal and administrative law, evaluation and specialized treatment of individuals involved with the legal system, incarcerated in jails, prisons, and forensic psychiatry hospitals.
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
William Provosty 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
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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 1003440223, 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 47 is 50. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1003440223, enumerated as an "individual" on February 26, 2020.
The provider is located at PO BOX 86125 LOS ANGELES, CA 90086 and the phone number is (323) 409-4942.
Psychiatry & Neurology with taxonomy code 2084F0202X and a focus in Forensic Psychiatry.
