JOHN ROBERT MARCUM
NPI 1538086616
Drama Therapist in Tempe, AZ

NPI Status: Active since June 30, 2026

Contact Information

8350 S RIVER PKWY
TEMPE, AZ
ZIP 85284
Phone: (800) 345-1036

Get Directions Write a Review

Newly Listed Provider
This NPI profile has been added to the NPI registry within the last 30 days.

Table of Contents

NPI Profile Information
Primary Taxonomy
Group Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Drama Therapist

About JOHN MARCUM

This page provides the complete NPI Profile along with additional information for John Marcum, a provider established in Tempe, Arizona with a medical specialization in Drama Therapist. The healthcare provider is registered in the NPI registry with number 1538086616 assigned on June 2026. The practitioner's primary taxonomy code is 101200000X with license number S008004 (AZ). The provider is registered as an individual and his NPI record was last updated June 2026. John Marcum operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.

NPI: 1538086616
Provider Name: JOHN ROBERT MARCUM
Gender: Male
Entity Type: Individual
Location Address: 8350 S RIVER PKWY TEMPE, AZ 85284
Location Phone: (800) 345-1036
Mailing Address: 8350 S RIVER PKWY TEMPE, AZ 85284
Mailing Phone: (800) 345-1036
Is Sole Proprietor?: Yes
Enumeration Date: 06-30-2026
Last Update Date: 06-30-2026
Code Navigator

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: Drama Therapist
Taxonomy Code: 101200000X
Type: Behavioral Health & Social Service Providers
License No.: S008004
License State: AZ
Taxonomy Description: Drama therapists are trained in the intentional use of drama and theatre processes to achieve therapeutic goals. Drama therapists provide psychotherapy for individuals living with mental health and behavioral concerns that may result in psychological suffering, impaired relationships, or distress in daily activities. Drama therapy promotes wellness and healing within the context of a therapeutic relationship for individuals of varying ability levels across the lifespan. Drama therapy can take many forms depending on individual and group needs, skill and ability levels, interests, and therapeutic goals. Processes and techniques may include improvisation, theater games, storytelling, and enactment.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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 1538086616, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 2

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 3 → 6 0 → 0 6 → 12 → 3 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 0 + 8 + 1 + 2 + 6 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1538086616.