Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. RICHARD DEWAR GREEN M.D.
NPI 1669438412
Pediatrics in Casper, WY

Active since April 21, 2006
940 E 3RD ST, #102, CASPER, WY 82601(330) 757-7428 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Male
  • Pediatrics

About RICHARD GREEN

This page provides the complete NPI Profile along with additional information for Richard Green, a pediatrician established in Casper, Wyoming with a medical specialization in Pediatrics. The healthcare provider is registered in the NPI registry with number 1669438412 assigned on April 2006. The practitioner's primary taxonomy code is 208000000X with license number 2373A (WY). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1669438412
Provider Name
DR. RICHARD DEWAR GREEN M.D.
Gender
Male
Entity Type
Individual
Location Address
940 E 3RD ST #102 CASPER, WY 82601
Location Phone
(330) 757-7428
Mailing Address
940 E 3RD ST #102 CASPER, WY 82601
Mailing Phone
(330) 757-7428
Is Sole Proprietor?
No
Enumeration Date
04-21-2006
Last Update Date
07-13-2026
Code Navigator

A pediatrician like Richard Green is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.

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

Pediatrics

Taxonomy Code
208000000X
Type
Allopathic & Osteopathic Physicians
License No.
2373A
License State
WY
Taxonomy Description
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

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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 1669438412, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
3
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
4
Unchanged
Pos 9
1
Doubled → 2
Check
2
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 6 → 12 → 3 4 → 8 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 8 + 3 + 1 + 6 + 4 + 2 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1669438412.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Specialist
940 E 3RD ST, SUITE 206
CASPER, WY 82601
Internal Medicine (Endocrinology, Diabetes & Metabolism)
940 E 3RD ST, SUITE 211
CASPER, WY 82601
Pediatrics
940 E 3RD ST, SUITE 208
CASPER, WY 82601
Pediatrics
940 E 3RD ST, SUITE 203
CASPER, WY 82601
Psychologist (Clinical)
940 E 3RD ST, STE 214
CASPER, WY 82601
Psychologist (Clinical Child & Adolescent)
940 E 3RD ST, STE 212
CASPER, WY 82601
Psychologist
940 E 3RD ST, SUITE 212
CASPER, WY 82601
Psychologist (Clinical)
940 E 3RD ST, STE 107
CASPER, WY 82601
Internal Medicine
940 E 3RD ST, SUITE # 202
CASPER, WY 82601
Nurse Practitioner
940 E 3RD ST, SUITE 215
CASPER, WY 82601
Internal Medicine (Pulmonary Disease)
940 E 3RD ST, SUITE 207
CASPER, WY 82601
Internal Medicine (Pulmonary Disease)
940 E 3RD ST, SUITE 207
CASPER, WY 82601
Social Worker
940 E 3RD ST
CASPER, WY 82601
Clinic/Center (Multi-Specialty)
940 E 3RD ST, STE. 106
CASPER, WY 82601
Social Worker (Clinical)
940 E 3RD ST
CASPER, WY 82601
Clinical Medical Laboratory
940 E 3RD ST, SUITE 103
CASPER, WY 82601
Counselor
940 E 3RD ST
CASPER, WY 82601
Pediatrics
940 E 3RD ST, #205
CASPER, WY 82601

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669438412, enumerated as an "individual" on April 21, 2006.

The provider is located at 940 E 3RD ST #102 CASPER, WY 82601 and the phone number is (330) 757-7428.

Pediatrics with taxonomy code 208000000X.