MARK L. RITCH DO, PA
NPI 1477945814
Psychiatry & Neurology - Neurology in Largo, FL

NPI Status: Active since February 23, 2015

Contact Information

1000 BELCHER RD S
SUITE 6
LARGO, FL
ZIP 33771
Phone: (727) 209-2662
Fax: (727) 400-3233

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  • Organization
  • Psychiatry & Neurology
  • Neurology

About MARK L. RITCH DO, PA

This page provides the complete NPI Profile along with additional information for Mark L. Ritch Do, Pa, a provider established in Largo, Florida operating as a Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1477945814 assigned on February 2015. The practitioner's primary taxonomy code is 2084N0400X with license number OS0006566 (FL). The provider is registered as an organization and their NPI record was last updated 10 years 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. The authorized official of this NPI record is Dr. Mark L Ritch D.o. (Sole Owner)

NPI
1477945814
Provider Name
MARK L. RITCH DO, PA
Entity Type
Organization
Location Address
1000 BELCHER RD S SUITE 6 LARGO, FL 33771
Location Phone
(727) 209-2662
Location Fax
(727) 400-3233
Mailing Address
1000 BELCHER RD S SUITE 6 LARGO, FL 33771
Mailing Phone
(727) 209-2662
Mailing Fax
(727) 400-3233
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-23-2015
Last Update Date
12-12-2016
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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 Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
OS0006566
License State
FL
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 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.

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

DR. MARK L RITCH D.O.

Authorized Official Title
SOLE OWNER
Authorized Official Phone
(727) 209-2662

Reviews for MARK L. RITCH DO, PA

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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 1477945814, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
4
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
4
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 7 → 14 → 5 9 → 18 → 9 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 4 + 7 + 1 + 8 + 4 + 1 + 0 + 8 + 2 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1477945814.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Durable Medical Equipment & Medical Supplies
1000 BELCHER RD S, SUITE 4
LARGO, FL 33771
Durable Medical Equipment & Medical Supplies
1000 BELCHER RD S, STE 4
LARGO, FL 33771
Podiatrist (Primary Podiatric Medicine)
1000 BELCHER RD S, STE 4
LARGO, FL 33771
Psychiatry & Neurology (Neurology)
1000 BELCHER RD S, SUITE 6
LARGO, FL 33771
Chiropractor
1000 BELCHER RD S, UNIT A-5
LARGO, FL 33771
Social Worker (Clinical)
1000 BELCHER RD S, SUITE 7
LARGO, FL 33771

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1477945814, enumerated as an "organization" on February 23, 2015.

The provider is located at 1000 BELCHER RD S SUITE 6 LARGO, FL 33771 and the phone number is (727) 209-2662.

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