DR. GRAHAMM WIEST PSY.D.
NPI 1962015628
Clinical Neuropsychologist in Mission Viejo, CA
NPI Status: Active since August 24, 2020
Contact Information
26800 CROWN VALLEY PKWY STE 320
MISSION VIEJO, CA
ZIP 92691
Phone: (949) 365-2468
- Individual
- Male
- Years of Experience 5
- Clinical Neuropsychologist
- May Accept Medicare Approved Payment
- PECOS Enrolled
About GRAHAMM WIEST
This page provides the complete NPI Profile along with additional information for Grahamm Wiest, a provider established in Mission Viejo, California with a medical specialization in Clinical Neuropsychologist and more than 5 years of experience. The healthcare provider is registered in the NPI registry with number 1962015628 assigned on August 2020. The practitioner's primary taxonomy code is 103G00000X with license number 34353 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1962015628
- Provider Name
- DR. GRAHAMM WIEST PSY.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 26800 CROWN VALLEY PKWY STE 320 MISSION VIEJO, CA 92691
- Location Phone
- (949) 365-2468
- Mailing Address
- 505 N EUCLID ST STE 300 ANAHEIM, CA 92801
- Mailing Phone
- (714) 871-5646
- Medical School Name
- OTHER
- Graduation Year
- 2021
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-24-2020
- Last Update Date
- 07-15-2025
- Code Navigator
Location Map
Secondary Locations
- 1110 E Chapman Ave Ste 202
Orange, CA 92866
(714) 744-9754
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
Clinical Neuropsychologist
- Taxonomy Code
- 103G00000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 34353
- License State
- CA
- Taxonomy Description
- A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 103T00000X | Behavioral Health & Social Service Providers | Psychologist | (CA) |
Medicare Participation & PECOS Enrollment Status
Grahamm Wiest is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.
Grahamm Wiest 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
PECOS PAC ID: 3375050719
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20250729004785
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Maybe
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.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
Reviews for DR. GRAHAMM WIEST PSY.D.
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1962015628, 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.
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 52 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1962015628, enumerated as an "individual" on August 24, 2020.
The provider is located at 26800 CROWN VALLEY PKWY STE 320 MISSION VIEJO, CA 92691 and the phone number is (949) 365-2468.
Clinical Neuropsychologist with taxonomy code 103G00000X.
