DR. MARY L. KLATT DNP, RXN, PMHCNS-BC
NPI 1477600690
Clinical Nurse Specialist - Psychiatric/Mental Health, Adult in Denver, CO

Active since January 03, 2007
1055 CLERMONT ST, DENVER, CO 80220(303) 399-8020(303) 393-5151 Get Directions Write a Review

NPPES record last updated: April 17, 2015. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Female
  • Clinical Nurse Specialist
  • Psychiatric/Mental Health, Adult

About MARY KLATT

This page provides the complete NPI Profile along with additional information for Mary Klatt, a provider established in Denver, Colorado with a medical specialization in Clinical Nurse Specialist, focusing in psychiatric/mental health, adult . The healthcare provider is registered in the NPI registry with number 1477600690 assigned on January 2007. The practitioner's primary taxonomy code is 364SP0809X with license number 3075-33 (WI). The provider is registered as an individual and her NPI record was last updated 11 years ago.

NPI
1477600690
Provider Name
DR. MARY L. KLATT DNP, RXN, PMHCNS-BC
Gender
Female
Entity Type
Individual
Location Address
1055 CLERMONT ST DENVER, CO 80220
Location Phone
(303) 399-8020
Location Fax
(303) 393-5151
Mailing Address
1055 CLERMONT ST DENVER, CO 80220
Mailing Phone
(303) 399-8020
Mailing Fax
(303) 393-5151
Is Sole Proprietor?
No
Enumeration Date
01-03-2007
Last Update Date
04-17-2015
Code Navigator

A Clinical Nurse Specialist (CNS) like Mary Klatt is a type of advanced practice registered nurse (APRN) that provides direct patient care in various nursing specialties, including pediatrics or psychiatric-mental health. CNSs collaborate with other nurses and medical professionals to improve patient care quality. CNSs are often positioned in leadership roles where they may provide education and mentorship to other nursing personnel. Additionally, CNSs may also conduct research and advocate for certain healthcare policies.

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

Clinical Nurse Specialist Psychiatric/Mental Health, Adult

Taxonomy Code
364SP0809X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
3075-33
License State
WI

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1364SP0809XPhysician Assistants & Advanced Practice Nursing Providers

Clinical Nurse Specialist
Psychiatric/Mental Health, Adult

RXN.0101249-CNS (CO)

Reviews for DR. MARY L. KLATT DNP, RXN, PMHCNS-BC

  • 5 out of 5 stars - Review by Ted Jervey on August 05, 2025

    I believe Dr. Klatt is the best in the world at what she does. I know this doctor knows the VA was created to serve those who wore the uniform. She works with veterans and truly cares about what she does. She has always showed all the values the Department of Veterans Affairs stands for Integrity, Commitment, Advocacy, Respect, and Excellence. Dr. Klatt is a one in a million find.

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 1477600690, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
4
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
7
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
0
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 7 → 14 → 5 6 → 12 → 3 0 → 0 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 4 + 7 + 1 + 2 + 0 + 0 + 6 + 1 + 8 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1477600690.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pharmacist
1055 CLERMONT ST, HBPC, BUILDING 4
DENVER, CO 80220
General Acute Care Hospital
1055 CLERMONT ST, LAB (113)
DENVER, CO 80220
Pharmacist
1055 CLERMONT ST, PHARMACY DEPARTMENT 119
DENVER, CO 80220
Psychiatry & Neurology (Geriatric Psychiatry)
1055 CLERMONT ST
DENVER, CO 80220
Internal Medicine
1055 CLERMONT ST, DENVER VAMC-BOX 11B
DENVER, CO 80220
Psychiatry & Neurology (Psychiatry)
1055 CLERMONT ST, ROOM 8D128
DENVER, CO 80220
Psychologist (Clinical)
1055 CLERMONT ST, PSYCHOLOGY 116B
DENVER, CO 80220
Internal Medicine
1055 CLERMONT ST
DENVER, CO 80220
Psychiatry & Neurology (Psychiatry)
1055 CLERMONT ST, 116D
DENVER, CO 80220
Nurse Practitioner (Adult Health)
1055 CLERMONT ST, HBPC - G-118
DENVER, CO 80220
Pharmacist
1055 CLERMONT ST
DENVER, CO 80220
Clinical Nurse Specialist
1055 CLERMONT ST, CARDILOGY 111-B
DENVER, CO 80220
Nurse Practitioner (Psychiatric/Mental Health)
1055 CLERMONT ST
DENVER, CO 80220
Internal Medicine
1055 CLERMONT ST, DENVER VA MEDICAL CENTER, AMBULATORY CARE 11B
DENVER, CO 80220
Internal Medicine
1055 CLERMONT ST, 11-B AMBULATORY CARE
DENVER, CO 80220
Pharmacist (Pharmacotherapy)
1055 CLERMONT ST, DENVER VAMC - PHARMACY, SERVICE 119
DENVER, CO 80220
Pharmacist
1055 CLERMONT ST
DENVER, CO 80220
Pharmacist
1055 CLERMONT ST
DENVER, CO 80220
Clinical Neuropsychologist
1055 CLERMONT ST, #116B
DENVER, CO 80220
Nurse Practitioner (Gerontology)
1055 CLERMONT ST
DENVER, CO 80220

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1477600690, enumerated as an "individual" on January 03, 2007.

The provider is located at 1055 CLERMONT ST DENVER, CO 80220 and the phone number is (303) 399-8020.

Clinical Nurse Specialist with taxonomy code 364SP0809X and a focus in Psychiatric/Mental Health, Adult.