DR. GREGORY D SEIDEL MD
NPI 1437138757
Pathology - Dermatopathology in Portsmouth, NH
NPI Status: Active since January 13, 2006
Contact Information
155 BORTHWICK AVE
SUITE 201 WEST
PORTSMOUTH, NH
ZIP 03801
Phone: (978) 691-5690
- Individual
- Male
- Pathology
- Dermatopathology
About GREGORY SEIDEL
This page provides the complete NPI Profile along with additional information for Gregory Seidel, a provider established in Portsmouth, New Hampshire with a medical specialization in Pathology, focusing in dermatopathology . The healthcare provider is registered in the NPI registry with number 1437138757 assigned on January 2006. The practitioner's primary taxonomy code is 207ZD0900X with license number 14900 (NH). The provider is registered as an individual and his NPI record was last updated 8 years ago.
- NPI
- 1437138757
- Provider Name
- DR. GREGORY D SEIDEL MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 155 BORTHWICK AVE SUITE 201 WEST PORTSMOUTH, NH 03801
- Location Phone
- (978) 691-5690
- Mailing Address
- 280 MERRIMACK ST STE 311 LAWRENCE, MA 01843
- Mailing Phone
- (978) 691-5690
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-13-2006
- Last Update Date
- 12-03-2018
- Code Navigator
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
Pathology Dermatopathology
- Taxonomy Code
- 207ZD0900X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 14900
- License State
- NH
- Taxonomy Description
- A dermatopathologist is an expert in diagnosing and monitoring diseases of the skin including infectious, immunologic, degenerative, and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings, and smears of skin lesions by means of light microscopy, electron microscopy, and fluorescence microscopy.
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 | 207ZP0101X | Allopathic & Osteopathic Physicians | Pathology | 14900 (NH) |
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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 1437138757, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
PORTSMOUTH, NH 03801
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1437138757, enumerated as an "individual" on January 13, 2006.
The provider is located at 155 BORTHWICK AVE SUITE 201 WEST PORTSMOUTH, NH 03801 and the phone number is (978) 691-5690.
Pathology with taxonomy code 207ZD0900X and a focus in Dermatopathology.
