JOSHUA GEAR M.D.
NPI 1821132069
Psychiatry & Neurology - Neurology in Portsmouth, NH

NPI Status: Active since February 19, 2007

Contact Information

20 LADD ST
SUITE 402
PORTSMOUTH, NH
ZIP 03801
Phone: (603) 610-0235
Fax: (603) 610-0181

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Neurology

About JOSHUA GEAR

This page provides the complete NPI Profile along with additional information for Joshua Gear, a provider established in Portsmouth, New Hampshire with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1821132069 assigned on February 2007. The practitioner's primary taxonomy code is 2084N0400X with license number NH9852 (NH). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1821132069
Provider Name
JOSHUA GEAR M.D.
Gender
Male
Entity Type
Individual
Location Address
20 LADD ST SUITE 402 PORTSMOUTH, NH 03801
Location Phone
(603) 610-0235
Location Fax
(603) 610-0181
Mailing Address
20 LADD ST SUITE 402 PORTSMOUTH, NH 03801
Mailing Phone
(603) 610-0235
Mailing Fax
(603) 610-0181
Is Sole Proprietor?
Yes
Enumeration Date
02-19-2007
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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
NH9852
License State
NH
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.

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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 1821132069, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 2 + 3 + 4 + 0 + 1 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1821132069.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Clinical Neuropsychologist
20 LADD ST, 4TH FLOOR
PORTSMOUTH, NH 03801
Social Worker
20 LADD ST, 4TH FLOOR
PORTSMOUTH, NH 03801
Marriage & Family Therapist
20 LADD ST, SUITE 410
PORTSMOUTH, NH 03801
Social Worker (Clinical)
20 LADD ST
PORTSMOUTH, NH 03801
Counselor (Mental Health)
20 LADD ST, 4TH FLOOR
PORTSMOUTH, NH 03801
Counselor (Mental Health)
20 LADD ST
PORTSMOUTH, NH 03801
Social Worker (Clinical)
20 LADD ST
PORTSMOUTH, NH 03801
Psychologist (Clinical)
20 LADD ST, SUITE 406
PORTSMOUTH, NH 03801
Clinical Nurse Specialist (Psychiatric/Mental Health, Adult)
20 LADD ST
PORTSMOUTH, NH 03801
Social Worker (Clinical)
20 LADD ST, 4TH FLOOR
PORTSMOUTH, NH 03801

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821132069, enumerated as an "individual" on February 19, 2007.

The provider is located at 20 LADD ST SUITE 402 PORTSMOUTH, NH 03801 and the phone number is (603) 610-0235.

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