TOLLER ENTERPRISES LLC
NPI 1023907300
Nurse Practitioner - Psychiatric/Mental Health in Washington, DC

NPI Status: Active since July 01, 2025

Contact Information

2601 18TH ST NE
WASHINGTON, DC
ZIP 20018
Phone: (202) 541-6200
Fax: (202) 328-1083

Get Directions Write a Review

  • Organization
  • Nurse Practitioner
  • Psychiatric/Mental Health

About TOLLER ENTERPRISES LLC

This page provides the complete NPI Profile along with additional information for Toller Enterprises Llc, a provider established in Washington, District Of Columbia operating as a Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1023907300 assigned on July 2025. The practitioner's primary taxonomy code is 363LP0808X. The provider is registered as an organization and their NPI record was last updated one year ago. Toller Enterprises Llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's . The authorized official of this NPI record is Walter Lewis Toller (Owner)

NPI
1023907300
Provider Legal Name
TOLLER ENTERPRISES LLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
2601 18TH ST NE WASHINGTON, DC 20018
Location Phone
(202) 541-6200
Location Fax
(202) 328-1083
Mailing Address
2232 E MONUMENT ST BALTIMORE, MD 21205
Mailing Phone
(667) 207-3552
Mailing Fax
(202) 328-1083
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-01-2025
Last Update Date
07-01-2025
Code Navigator

A nurse practitioner (NP) like Toller Enterprises Llc is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Psychiatric/Mental Health

Taxonomy Code
363LP0808X
Type
Physician Assistants & Advanced Practice Nursing Providers

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)
1208VP0000XAllopathic & Osteopathic Physicians

Pain Medicine
Pain Medicine

 

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

WALTER LEWIS TOLLER

Authorized Official Title
OWNER
Authorized Official Phone
(667) 207-3552

Reviews for TOLLER ENTERPRISES LLC

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1023907300, 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 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
0
Unchanged
Pos 3
2
Doubled → 4
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
3
Unchanged
Pos 9
0
Doubled → 0
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 2 → 4 9 → 18 → 9 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 4 + 3 + 1 + 8 + 0 + 1 + 4 + 3 + 0 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1023907300.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Skilled Nursing Facility
2601 18TH ST NE
WASHINGTON, DC 20018
Clinic/Center (Adult Day Care)
2601 18TH ST NE
WASHINGTON, DC 20018
Skilled Nursing Facility
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapist
2601 18TH ST NE
WASHINGTON, DC 20018
Physical Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Physical Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapist
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapy Assistant (Environmental Modification)
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapist
2601 18TH ST NE
WASHINGTON, DC 20018
Occupational Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Physical Therapy Assistant
2601 18TH ST NE
WASHINGTON, DC 20018
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
2601 18TH ST NE, A WING BASEMENT
WASHINGTON, DC 20018

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1023907300, enumerated as an "organization" on July 01, 2025.

The provider is located at 2601 18TH ST NE WASHINGTON, DC 20018 and the phone number is (202) 541-6200.

Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.