DR. DOUGLAS KENT DIEHL M.D.
NPI 1225128093
Anesthesiology - Addiction Medicine in Medford, OR

NPI Status: Active since October 13, 2006

Contact Information

1025 E MAIN ST
MEDFORD, OR
ZIP 97504
Phone: (541) 779-1282
Fax: (541) 608-2888

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Anesthesiology
Addiction Medicine

About DOUGLAS DIEHL

This page provides the complete NPI Profile along with additional information for Douglas Diehl, a provider established in Medford, Oregon with a medical specialization in Anesthesiology, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1225128093 assigned on October 2006. The practitioner's primary taxonomy code is 207LA0401X with license number MD23570 (OR). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI: 1225128093
Provider Name: DR. DOUGLAS KENT DIEHL M.D.
Gender: Male
Entity Type: Individual
Location Address: 1025 E MAIN ST MEDFORD, OR 97504
Location Phone: (541) 779-1282
Location Fax: (541) 608-2888
Mailing Address: 1003 E MAIN ST STE 104 MEDFORD, OR 97504
Mailing Phone: (541) 779-1082
Mailing Fax: (541) 608-2888
Is Sole Proprietor?: Yes
Enumeration Date: 10-13-2006
Last Update Date: 06-15-2021
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Location Map

Secondary Locations

338 N Front St
Medford, OR 97501
(541) 779-1282

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: Anesthesiology Addiction Medicine
Taxonomy Code: 207LA0401X
Type: Allopathic & Osteopathic Physicians
License No.: MD23570
License State: OR
Taxonomy Description: An anesthesiologist who specializes in the diagnosis and treatment of addictions.

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	174400000X	Other Service Providers	Specialist	MD23570 (OR)

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 1225128093, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 18 → 1 + 8

Check

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 8 → 16 → 7 9 → 18 → 9