Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. ROGER A GRINNELL
NPI 1801849518
Counselor in Las Vegas, NV

Q: What is Roger Grinnell's NPI number?

The NPI number for Roger Grinnell is 1801849518. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Q: What is Roger Grinnell's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Roger Grinnell was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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.

Active since May 17, 2006

4000 E CHARLESTON BLVD, A230, LAS VEGAS, NV 89104(702) 986-4000 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

On this page

About Mr. Roger A Grinnell NPPES

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

MR. ROGER A GRINNELL (NPI 1801849518) is an individual counselor in Las Vegas, Nevada and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1801849518

Entity TypeIndividualMale

Primary Taxonomy101Y00000X

Provider Legal NameMR. ROGER A GRINNELL

Location Address4000 E CHARLESTON BLVD, A230Las Vegas, NV 89104-6659

Mailing Address4000 E Charleston BlvdLas Vegas, NV 89104-6659 · (702) 968-5090 · Fax (702) 968-5050

Phone(702) 986-4000

Sole ProprietorNo

Enumeration DateMay 17, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1801849518 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers

Taxonomy Code101Y00000X

Definition

A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

4000 E CHARLESTON BLVD, Las Vegas, NV 89104

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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.

JUDY C MCEACHERN RN

Registered Nurse

4000 E CHARLESTON BLVD, STE 230
LAS VEGAS, NV 89104

Clark County (702) 968-4020

MR. RUSTIN JIN PARK RN, BSN

Registered Nurse (Psychiatric/Mental Health)

4000 E CHARLESTON BLVD, SUITE 130
LAS VEGAS, NV 89104

Clark County (702) 968-4020

APRIL ROMER B.A.

Counselor

4000 E CHARLESTON BLVD
LAS VEGAS, NV 89104

Clark County (702) 968-4000

CHRISTENSEN ALLERGY ASSOCIATES

Allergy & Immunology (Allergy)

4000 E CHARLESTON BLVD, #100
LAS VEGAS, NV 89104

Clark County (702) 432-9544

SARAH ESCARTIN

Counselor (Mental Health)

4000 E CHARLESTON BLVD
LAS VEGAS, NV 89104

Clark County (702) 968-5000

MS. NATALIE ROSE SCHMALTZ QMHA

Community Health Worker

4000 E CHARLESTON BLVD, 230
LAS VEGAS, NV 89104

Clark County (702) 968-5000

KATHRYN ANN SAATZER LPN

Licensed Practical Nurse

4000 E CHARLESTON BLVD, B-130
LAS VEGAS, NV 89104

Clark County (702) 968-4000

NEVADA FAMILY PRACTICE RESIDENCE PROGRAM

Pharmacy

4000 E CHARLESTON BLVD, B-130
LAS VEGAS, NV 89104

Clark County (702) 968-4038

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 Roger Grinnell's NPI number?

The NPI number for Roger Grinnell is 1801849518. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Roger Grinnell located?

Roger Grinnell practices at 4000 E Charleston Blvd A230, Las Vegas, NV 89104. The listed phone number is (702) 986-4000.

What is Roger Grinnell's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Roger Grinnell was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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.