DR. ALFRED EUGENE DUNHAM JR. DDS
NPI 1194033423
Dentist - General Practice in Clarinda, IA

NPI Status: Active since September 21, 2010

Contact Information

1800 N 16TH ST
DUPLEX 1
CLARINDA, IA
ZIP 51632
Phone: (712) 438-4030

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  • Individual
  • Male
  • Dentist
  • General Practice

About ALFRED DUNHAM

This page provides the complete NPI Profile along with additional information for Alfred Dunham, a provider established in Clarinda, Iowa with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1194033423 assigned on September 2010. The practitioner's primary taxonomy code is 1223G0001X with license number 06421 (IA). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1194033423
Provider Name
DR. ALFRED EUGENE DUNHAM JR. DDS
Gender
Male
Entity Type
Individual
Location Address
1800 N 16TH ST DUPLEX 1 CLARINDA, IA 51632
Location Phone
(712) 438-4030
Mailing Address
1800 N 16TH ST DUPLEX 1 CLARINDA, IA 51632
Mailing Phone
(712) 438-4030
Is Sole Proprietor?
Yes
Enumeration Date
09-21-2010
Last Update Date
05-31-2026
Code Navigator

A dentist like Alfred Dunham is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License No.
06421
License State
IA
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

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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 1194033423, 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
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
4
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
Unchanged
Pos 9
2
Doubled → 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 9 → 18 → 9 0 → 0 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 + 1 + 1 + 8 + 4 + 0 + 3 + 6 + 4 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1194033423.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Pharmacist
1800 N 16TH ST
CLARINDA, IA 51632
Pharmacist
1800 N 16TH ST
CLARINDA, IA 51632
Social Worker
1800 N 16TH ST
CLARINDA, IA 51632
Registered Nurse (Psychiatric/Mental Health)
1800 N 16TH ST
CLARINDA, IA 51632
Social Worker
1800 N 16TH ST
CLARINDA, IA 51632
Social Worker
1800 N 16TH ST
CLARINDA, IA 51632
Social Worker
1800 N 16TH ST
CLARINDA, IA 51632
Social Worker
1800 N 16TH ST
CLARINDA, IA 51632
Registered Nurse (Psychiatric/Mental Health)
1800 N 16TH ST
CLARINDA, IA 51632
Counselor (Mental Health)
1800 N 16TH ST, SUITE 1
CLARINDA, IA 51632
Psychiatric Hospital
1800 N 16TH ST
CLARINDA, IA 51632
Counselor (Addiction (Substance Use Disorder))
1800 N 16TH ST
CLARINDA, IA 51632
Registered Nurse (Psychiatric/Mental Health)
1800 N 16TH ST, SUITE 1
CLARINDA, IA 51632
Pharmacy (Institutional Pharmacy)
1800 N 16TH ST
CLARINDA, IA 51632

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1194033423, enumerated as an "individual" on September 21, 2010.

The provider is located at 1800 N 16TH ST DUPLEX 1 CLARINDA, IA 51632 and the phone number is (712) 438-4030.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.