HOLYSTICK,LLC
NPI 1619506300
Nurse Practitioner - Psychiatric/Mental Health in Fairfax, VA
NPI Status: Active since April 03, 2020
Contact Information
8550 ROUTE 29 STE 720
FAIRFAX, VA
ZIP 22031
Phone: (703) 981-5085
Fax: (240) 901-4515
- Organization
- Nurse Practitioner
- Psychiatric/Mental Health
About HOLYSTICK,LLC
This page provides the complete NPI Profile along with additional information for Holystick,llc, a provider established in Fairfax, Virginia operating as a Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1619506300 assigned on April 2020. The practitioner's primary taxonomy code is 363LP0808X. The provider is registered as an organization and their NPI record was last updated January 2026. Holystick,llc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Hanul Jung Doa (Ceo)
- NPI
- 1619506300
- Provider Name
- HOLYSTICK,LLC
- Entity Type
- Organization
- Location Address
- 8550 ROUTE 29 STE 720 FAIRFAX, VA 22031
- Location Phone
- (703) 981-5085
- Location Fax
- (240) 901-4515
- Mailing Address
- 14428 HOMECREST RD SILVER SPRING, MD 20906
- Mailing Phone
- (240) 506-6549
- Mailing Fax
- (240) 901-4515
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-03-2020
- Last Update Date
- 01-18-2026
- Code Navigator
A nurse practitioner (NP) like Holystick,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
Secondary Locations
- 15200 Shady Grove Rd
Rockville, MD 20850
(240) 945-8525
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) |
|---|---|---|---|---|
| 1 | 363LP2300X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner |
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.
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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 1619506300, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1619506300, enumerated as an "organization" on April 03, 2020.
The provider is located at 8550 ROUTE 29 STE 720 FAIRFAX, VA 22031 and the phone number is (703) 981-5085.
Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.
