ALTON LUTHER HAYNES III CRNP
NPI 1679424774
Nurse Practitioner - Family in Rockville, MD

NPI Status: Active since February 05, 2026

Contact Information

11119 ROCKVILLE PIKE STE 100
ROCKVILLE, MD
ZIP 20852
Phone: (301) 816-9000

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  • Individual
  • Male
  • Nurse Practitioner
  • Family

About ALTON HAYNES

This page provides the complete NPI Profile along with additional information for Alton Haynes, a provider established in Rockville, Maryland with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1679424774 assigned on February 2026. The practitioner's primary taxonomy code is 363LF0000X with license number R227388 (MD). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI
1679424774
Provider Name
ALTON LUTHER HAYNES III CRNP
Gender
Male
Entity Type
Individual
Location Address
11119 ROCKVILLE PIKE STE 100 ROCKVILLE, MD 20852
Location Phone
(301) 816-9000
Mailing Address
11119 ROCKVILLE PIKE STE 100 ROCKVILLE, MD 20852
Mailing Phone
(301) 816-9000
Is Sole Proprietor?
No
Enumeration Date
02-05-2026
Last Update Date
02-05-2026
Code Navigator

A nurse practitioner (NP) like Alton Haynes 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 Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
R227388
License State
MD

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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 1679424774, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 8 + 2 + 8 + 7 + 1 + 4 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1679424774.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679424774, enumerated as an "individual" on February 05, 2026.

The provider is located at 11119 ROCKVILLE PIKE STE 100 ROCKVILLE, MD 20852 and the phone number is (301) 816-9000.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.