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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

JOHN ARNOLD
NPI 1427975986
Counselor - Mental Health in Boulder, CO

Active since July 03, 2026
1650 38TH ST STE 100E, BOULDER, CO 80301(720) 500-5482 Get Directions Write a Review

NPPES record added: July 3, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Arnold NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN ARNOLD (NPI 1427975986) is an individual mental health provider in Boulder, Colorado, licensed in (LPCC.0023946) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1427975986
Entity TypeIndividual
Primary Taxonomy101YM0800X
Provider Legal NameJOHN ARNOLD
Location Address1650 38TH ST STE 100EBoulder, CO 80301-2624
Mailing Address3434 47th St Ste 130Boulder, CO 80301-1802 · (703) 402-2462
Phone(720) 500-5482
Sole ProprietorYes
Enumeration DateJuly 3, 2026
NPPES CertifiedJuly 3, 2026
✔ NPI 1427975986 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed · LPCC.0023946
1650 38TH ST STE 100E, Boulder, CO 80301
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KELLY BERRY, MSW, LCSW, LLC
Social Worker (Clinical)
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (720) 295-2697
NICHOLAS THOMAS SERRO LCSW
Social Worker
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (720) 773-0686
MISS BETH A ERLANDER MA, LPC, ATR
Counselor (Professional)
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (720) 470-3513
THE OTHER THERAPY ONLINE, LLC
Counselor (Professional)
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (970) 319-7190
DOUBLE DIAMOND COUNSELING LLC
Counselor (Professional)
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (720) 593-4701
ALEXA OWEN
Social Worker
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (203) 803-3234
FULL CIRCLE WHOLENESS, LLC
Counselor (Mental Health)
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (720) 784-5222
DANIEL BROWN DPT
Physical Therapist
1650 38TH ST STE 100E
BOULDER, CO 80301
Boulder County (502) 320-6784

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Arnold's NPI number?

The NPI number for John Arnold is 1427975986. It was assigned to this individual provider in the NPPES registry on July 3, 2026.

Where is John Arnold located?

John Arnold practices at 1650 38th St Ste 100E, Boulder, CO 80301. The listed phone number is (720) 500-5482.

What is John Arnold's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for John Arnold was last updated on July 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.