MR. DAVID PAUL BUTLER RPH
NPI 1982693628
Pharmacist - Nutrition Support in Auburn, ME

NPI Status: Active since October 16, 2005

Contact Information

61 UNION ST
AUBURN, ME
ZIP 04210
Phone: (207) 753-0102
Fax: (207) 753-0503

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  • Individual
  • Male
  • Pharmacist
  • Nutrition Support

About DAVID BUTLER

This page provides the complete NPI Profile along with additional information for David Butler, a provider established in Auburn, Maine with a medical specialization in Pharmacist, focusing in nutrition support . The healthcare provider is registered in the NPI registry with number 1982693628 assigned on October 2005. The practitioner's primary taxonomy code is 1835N1003X with license number 4043 (ME). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1982693628
Provider Name
MR. DAVID PAUL BUTLER RPH
Gender
Male
Entity Type
Individual
Location Address
61 UNION ST AUBURN, ME 04210
Location Phone
(207) 753-0102
Location Fax
(207) 753-0503
Mailing Address
22 BROWN ST LEWISTON, ME 04240
Mailing Phone
(207) 240-1716
Mailing Fax
(207) 753-0503
Is Sole Proprietor?
Yes
Enumeration Date
10-16-2005
Last Update Date
09-11-2025
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A pharmacist like David Butler fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

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

Pharmacist Nutrition Support

Taxonomy Code
1835N1003X
Type
Pharmacy Service Providers
License No.
4043
License State
ME
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in maintenance and/or restoration of optimal nutritional status, designing and modifying treatment according to patient needs.

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)
1183500000XPharmacy Service Providers

Pharmacist

4043 (ME)

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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 1982693628, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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

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 + 2 + 9 + 6 + 6 + 4 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1982693628.

Other Providers at the Same Location


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

Pharmacist
61 UNION ST
AUBURN, ME 04210
Pharmacist
61 UNION ST
AUBURN, ME 04210
Pharmacist
61 UNION ST
AUBURN, ME 04210
Pharmacist
61 UNION ST
AUBURN, ME 04210
Pharmacist
61 UNION ST
AUBURN, ME 04210
Pharmacy
61 UNION ST
AUBURN, ME 04210

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982693628, enumerated as an "individual" on October 16, 2005.

The provider is located at 61 UNION ST AUBURN, ME 04210 and the phone number is (207) 753-0102.

Pharmacist with taxonomy code 1835N1003X and a focus in Nutrition Support.