JOHNSON CREEK VILLAGE
NPI 1982534673
Alzheimer Center (Dementia Center) in Dover, NH

NPI Status: Active since May 22, 2026

Contact Information

301 DURHAM RD
DOVER, NH
ZIP 03820
Phone: (603) 842-4238
Fax: (603) 740-1498

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  • Organization
  • Alzheimer Center (Dementia Center)

About JOHNSON CREEK VILLAGE

This page provides the complete NPI Profile along with additional information for Johnson Creek Village, a provider established in Dover, New Hampshire operating as a Alzheimer Center (dementia Center). The healthcare provider is registered in the NPI registry with number 1982534673 assigned on May 2026. The practitioner's primary taxonomy code is 311500000X. The provider is registered as an organization and their NPI record was last updated May 2026. The authorized official of this NPI record is Mr. Erol Duymazlar (Owner/managing Member)

NPI
1982534673
Provider Name
JOHNSON CREEK VILLAGE
Entity Type
Organization
Location Address
301 DURHAM RD DOVER, NH 03820
Location Phone
(603) 842-4238
Location Fax
(603) 740-1498
Mailing Address
301 DURHAM RD DOVER, NH 03820
Mailing Phone
(603) 842-4238
Mailing Fax
(603) 740-1498
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-22-2026
Last Update Date
05-22-2026
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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

Alzheimer Center (Dementia Center)

Taxonomy Code
311500000X
Type
Nursing & Custodial Care Facilities
Taxonomy Description
A freestanding facility or special care unit of a long term care facility focusing on patient care of individuals diagnosed with dementia or Alzheimer's Disease or their related diseases. Six elements of the facility/unit set it apart from other (the rest of the) facilities(y): Admission of residents with dementia (including those with Alzheimer's disease); Staff who are specially selected, trained, and supervised; Activities that are specifically designed for the cognitively impaired; A marketing of a special care unit in brochures; A high level of family involvement; and A physical environment designed to keep residents safe and segregated from other populations.

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

MR. EROL DUYMAZLAR

Authorized Official Title
OWNER/MANAGING MEMBER
Authorized Official Phone
(603) 937-1007

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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 1982534673, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
4
Doubled → 8
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 8 → 16 → 7 5 → 10 → 1 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 6 + 2 + 1 + 0 + 3 + 8 + 6 + 1 + 4 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1982534673.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982534673, enumerated as an "organization" on May 22, 2026.

The provider is located at 301 DURHAM RD DOVER, NH 03820 and the phone number is (603) 842-4238.

Alzheimer Center (Dementia Center) with taxonomy code 311500000X.