MR. CHRISTOPHER R FLOWERS RN, DNP
NPI 1891628384
Registered Nurse - Critical Care Medicine in San Antonio, TX

NPI Status: Active since June 04, 2026

Contact Information

3551 ROGER BROOKE DR
SAN ANTONIO, TX
ZIP 78234
Phone: (210) 916-7500

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  • Individual
  • Male
  • Registered Nurse
  • Critical Care Medicine

About CHRISTOPHER FLOWERS

This page provides the complete NPI Profile along with additional information for Christopher Flowers, a provider established in San Antonio, Texas with a medical specialization in Registered Nurse, focusing in critical care medicine . The healthcare provider is registered in the NPI registry with number 1891628384 assigned on June 2026. The practitioner's primary taxonomy code is 163WC0200X with license number 0001333167 (VA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1891628384
Provider Name
MR. CHRISTOPHER R FLOWERS RN, DNP
Gender
Male
Entity Type
Individual
Location Address
3551 ROGER BROOKE DR SAN ANTONIO, TX 78234
Location Phone
(210) 916-7500
Mailing Address
3551 ROGER BROOKE DR SAN ANTONIO, TX 78234
Mailing Phone
(210) 916-7500
Is Sole Proprietor?
No
Enumeration Date
06-04-2026
Last Update Date
06-04-2026
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A registered nurse (RN) like Christopher Flowers coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.

Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.

Critical care nurses - this registered nurse specializes in providing care at hospital intensive-care units, tending to patients with severe, acute illnesses and injuries that require meticulous monitoring and intervention.

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

Registered Nurse Critical Care Medicine

Taxonomy Code
163WC0200X
Type
Nursing Service Providers
License No.
0001333167
License State
VA

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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 1891628384, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 9 → 18 → 9 6 → 12 → 3 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 2 + 2 + 1 + 6 + 3 + 1 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1891628384.

Other Providers at the Same Location


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

Pediatrics
3551 ROGER BROOKE DR, DEPARTMENT OF PEDIATRICS/ADOLESCENT MEDICINE
FORT SAM HOUSTON, TX 78234
Pediatrics (Pediatric Cardiology)
3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Pediatrics (Neonatal-Perinatal Medicine)
3551 ROGER BROOKE DR, NEONATOLOGY
FORT SAM HOUSTON, TX 78234
Nurse Practitioner (Primary Care)
3551 ROGER BROOKE DR, DEPARTMENT OF PEDIATRICS/ADOLESCENT MEDICINE
FORT SAM HOUSTON, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE/ME
FORT SAM HOUSTON, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE-QD(CREDS)
FORT SAM HOUSTON, TX 78234
Occupational Therapist
3551 ROGER BROOKE DR, MCHE-QD (CREDS)
FORT SAM HOUSTON, TX 78234
Internal Medicine (Infectious Disease)
3551 ROGER BROOKE DR, MCHE-QD, BLDG 3600
FORT SAM HOUSTON, TX 78234
Urology
3551 ROGER BROOKE DR, MCHE-SDU, BUILDING 3600
SAN ANTONIO, TX 78234
Occupational Therapist
3551 ROGER BROOKE DR
SAN ANTONIO, TX 78234
Occupational Therapist
3551 ROGER BROOKE DR, MCHE-QD (CREDS)
SAN ANTONIO, TX 78234
Internal Medicine (Infectious Disease)
3551 ROGER BROOKE DR, MCHE-MDI
FORT SAM HOUSTON, TX 78234
Physician Assistant
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Hospitalist
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE/ME
SAN ANTONIO, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE/ME
SAN ANTONIO, TX 78234
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3551 ROGER BROOKE DR, ATTN: MCHE-MDE
FORT SAM HOUSTON, TX 78234
Internal Medicine (Pulmonary Disease)
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Psychiatry & Neurology (Neuromuscular Medicine)
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER DEPT OF NEUROLOGY
SAN ANTONIO, TX 78234
Physician Assistant (Medical)
3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891628384, enumerated as an "individual" on June 04, 2026.

The provider is located at 3551 ROGER BROOKE DR SAN ANTONIO, TX 78234 and the phone number is (210) 916-7500.

Registered Nurse with taxonomy code 163WC0200X and a focus in Critical Care Medicine.