DR. MERRICK MAYNARD TSAI MD, FNP-BC, FNP-C
NPI 1366012791
Nurse Practitioner - Psychiatric/Mental Health in Highland, CA

NPI Status: Active since June 28, 2021

Contact Information

28839 LEMON ST
HIGHLAND, CA
ZIP 92346
Phone: (909) 742-9889
Fax: (909) 498-1635

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  • Individual
  • Male
  • Nurse Practitioner
  • Psychiatric/Mental Health

About MERRICK TSAI

This page provides the complete NPI Profile along with additional information for Merrick Tsai, a provider established in Highland, California with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1366012791 assigned on June 2021. The practitioner's primary taxonomy code is 363LP0808X with license number NP95017885 (CA). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1366012791
Provider Name
DR. MERRICK MAYNARD TSAI MD, FNP-BC, FNP-C
Gender
Male
Entity Type
Individual
Location Address
28839 LEMON ST HIGHLAND, CA 92346
Location Phone
(909) 742-9889
Location Fax
(909) 498-1635
Mailing Address
28839 LEMON ST HIGHLAND, CA 92346
Mailing Phone
(909) 742-9889
Is Sole Proprietor?
Yes
Enumeration Date
06-28-2021
Last Update Date
08-23-2024
Code Navigator

A nurse practitioner (NP) like Merrick Tsai is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

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

Nurse Practitioner Psychiatric/Mental Health

Taxonomy Code
363LP0808X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
NP95017885
License State
CA

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)
1363LF0000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Family

APRN11020654 (FL)
2363LF0000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Family

NP95017885 (CA)
3363LF0000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Family

857119 (NV)
4363LF0000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Family

243315 (AZ)
5363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

857119 (NV)
6363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

243315 (AZ)
7363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

APRN11020654 (FL)

Reviews for DR. MERRICK MAYNARD TSAI MD, FNP-BC, FNP-C

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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 1366012791, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
3
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
2
Doubled → 4
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 0 → 0 2 → 4 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 0 + 1 + 4 + 7 + 1 + 8 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1366012791.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366012791, enumerated as an "individual" on June 28, 2021.

The provider is located at 28839 LEMON ST HIGHLAND, CA 92346 and the phone number is (909) 742-9889.

Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.