POST - ACUTE NEUROLOGY OF AMERICA
NPI 1003770538
Psychiatry & Neurology - Neurology in Westminster, CA

NPI Status: Active since December 10, 2025

Contact Information

200 HOSPITAL CIR
WESTMINSTER, CA
ZIP 92683
Phone: (657) 666-7700

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  • Organization
  • Psychiatry & Neurology
  • Neurology

About POST - ACUTE NEUROLOGY OF AMERICA

This page provides the complete NPI Profile along with additional information for Post - Acute Neurology Of America, a provider established in Westminster, California operating as a Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1003770538 assigned on December 2025. The practitioner's primary taxonomy code is 2084N0400X. The provider is registered as an organization and their NPI record was last updated February 2026. Post - Acute Neurology Of America operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mohammad Hajighasemi Md (President)

NPI
1003770538
Provider Name
POST - ACUTE NEUROLOGY OF AMERICA
Entity Type
Organization
Location Address
200 HOSPITAL CIR WESTMINSTER, CA 92683
Location Phone
(657) 666-7700
Mailing Address
8941 ATLANTA AVE # 170 HUNTINGTON BEACH, CA 92646
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-10-2025
Last Update Date
02-13-2026
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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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MOHAMMAD HAJIGHASEMI MD

Authorized Official Title
PRESIDENT
Authorized Official Phone
(949) 891-1530

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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 1003770538, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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
0
Unchanged
Pos 3
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
8
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 0 → 0 7 → 14 → 5 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 4 + 7 + 0 + 5 + 6 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1003770538.

Other Providers at the Same Location


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

Emergency Medicine
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Emergency Medicine
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Physical Medicine & Rehabilitation
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Pharmacist (Pharmacotherapy)
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Anesthesiology
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Licensed Vocational Nurse
200 HOSPITAL CIR
WESTMINSTER, CA 92683
General Practice
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Nurse Practitioner (Acute Care)
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Anesthesiology
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Emergency Medicine
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Hospitalist
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Occupational Therapist
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Emergency Medicine
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Speech-Language Pathologist
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Nurse Practitioner (Family)
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Internal Medicine
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Long Term Care Hospital
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Pharmacist
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Pharmacist
200 HOSPITAL CIR
WESTMINSTER, CA 92683
Occupational Therapist
200 HOSPITAL CIR
WESTMINSTER, CA 92683

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003770538, enumerated as an "organization" on December 10, 2025.

The provider is located at 200 HOSPITAL CIR WESTMINSTER, CA 92683 and the phone number is (657) 666-7700.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.