DR. BRENDAN O'BRIEN M.D.
NPI 1598073181
Surgery - Trauma Surgery in San Antonio, TX

NPI Status: Active since September 17, 2010

Contact Information

3551 ROGER BROOKE DR
SAN ANTONIO, TX
ZIP 78234
Phone: (210) 539-9582

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  • Individual
  • Male
  • Surgery
  • Trauma Surgery
  • Accepts Insurance
  • PECOS Enrolled

About BRENDAN O'BRIEN

This page provides the complete NPI Profile along with additional information for Brendan O'brien, a provider established in San Antonio, Texas with a medical specialization in Surgery, focusing in trauma surgery . The healthcare provider is registered in the NPI registry with number 1598073181 assigned on September 2010. The practitioner's primary taxonomy code is 2086S0127X with license number T9464 (TX). The provider is registered as an individual and his NPI record was last updated December 2025.

NPI
1598073181
Provider Name
DR. BRENDAN O'BRIEN M.D.
Gender
Male
Entity Type
Individual
Location Address
3551 ROGER BROOKE DR SAN ANTONIO, TX 78234
Location Phone
(210) 539-9582
Mailing Address
8901 WISCONSIN AVE BETHESDA, MD 20889
Is Sole Proprietor?
Yes
Enumeration Date
09-17-2010
Last Update Date
12-08-2025
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Location Map

Secondary Locations

  • 1887 Kingsley Ave Ste 1900
    Orange Park, FL 32073
    (904) 276-2549
  • 1 Boone Rd
    Bremerton, WA 98312
    (360) 475-4916

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

Surgery Trauma Surgery

Taxonomy Code
2086S0127X
Type
Allopathic & Osteopathic Physicians
License No.
T9464
License State
TX
Taxonomy Description
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

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)
1208600000XAllopathic & Osteopathic Physicians

Surgery

0101251259 (VA)
22086S0102XAllopathic & Osteopathic Physicians

Surgery
Surgical Critical Care

ME146116 (FL)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Blue Advantage Bronze HMO? 204 - HMO
  • Blue Advantage Bronze HMO? 301 - HMO
  • Blue Advantage Bronze HMO? Standard - HMO
  • Blue Advantage Gold HMO? 206 - HMO
  • Blue Advantage Gold HMO? 603 - HMO
  • Blue Advantage Gold HMO? Standard - HMO
  • Blue Advantage Plus Bronze? 303 - POS
  • Blue Advantage Plus Bronze? 305 - POS
  • Blue Advantage Plus Bronze? Standard - POS
  • Blue Advantage Plus Gold? 203 - POS
  • Blue Advantage Plus Gold? 803 - POS
  • Blue Advantage Plus Gold? Standard - POS
  • Blue Advantage Plus Silver? 202 - POS
  • Blue Advantage Plus Silver? 605 - POS
  • Blue Advantage Plus Silver? Standard - POS
  • Blue Advantage Security HMO? 200 - HMO
  • Blue Advantage Silver HMO? 205 - HMO
  • Blue Advantage Silver HMO? 801 - HMO
  • Blue Advantage Silver HMO? Standard - HMO
  • BlueOptions Bronze (HSA) 24J01-10 (Rewards / $4 Condition Care Rx) - PPO
  • BlueOptions Bronze 24J01-04 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - PPO
  • BlueOptions Bronze 24J01-06 (Rewards) - PPO
  • BlueOptions Bronze 24J01-17 ($50 PCP Visits / Rewards) - PPO
  • BlueOptions Bronze 24J01-18S ($50 PCP Visits / Rewards) - PPO
  • BlueOptions Gold 24J01-09 ($0 Deductible / $15 PCP Visits / $75 Specialist Visits / $20 Labs / Rewards) - PPO
  • BlueOptions Gold 24J01-12 ($40 PCP Visits / $75 Specialist Visits / $15 Labs / Rewards) - PPO
  • BlueOptions Gold 24J01-20S ($30 PCP Visits / $60 Specialist Visits / Rewards) - PPO
  • BlueOptions Platinum 24J01-05 ($0 Labs / $15 PCP Visits / $35 Specialist Visits / Rewards) - PPO
  • BlueOptions Platinum 24J01-08 ($0 Deductible / $0 Labs / $15 PCP Visits / $25 Specialist Visits / Rewards) - PPO
  • BlueOptions Platinum 24J01-21S ($0 Deductible / $10 PCP Visits / $20 Specialist Visits / Rewards) - PPO
  • BlueOptions Silver 24J01-03 ($10 Labs / Rewards) - PPO
  • BlueOptions Silver 24J01-07 ($50 PCP Visits / Rewards) - PPO
  • BlueOptions Silver 24J01-19S ($40 PCP Visits / $80 Specialist Visits / Rewards) - PPO
  • BlueSelect Bronze (HSA) 1735 (Rewards / $4 Condition Care Rx) - EPO
  • BlueSelect Bronze 1449 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - EPO
  • BlueSelect Bronze 2139 ($50 PCP Visits / Rewards) - EPO
  • BlueSelect Bronze 2139E ($50 PCP Visits / Adult Dental & Vision / Rewards) - EPO
  • BlueSelect Bronze 2139V ($50 PCP Visits / Adult Vision / Rewards) - EPO
  • BlueSelect Bronze 2342S ($50 PCP Visits / Rewards) - EPO
  • BlueCare Bronze (HSA) 24K01-09 (Rewards / $4 Condition Care Rx) - POS
  • BlueCare Bronze 24K01-03 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K01-05 (Rewards) - POS
  • BlueCare Bronze 24K01-25 ($50 PCP Visits / $75 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K01-31S ($50 PCP Visits / Rewards) - POS
  • BlueCare Bronze 24K02-17 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K02-18 (Rewards) - POS
  • BlueCare Bronze 24K02-23 ($50 PCP Visits / $75 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K02-26S ($50 PCP Visits / Rewards) - POS
  • BlueCare Gold 24K01-08 ($0 Deductible / $15 PCP Visits / $75 Specialist Visits / $20 Labs / Rewards) - POS
  • BlueCare Gold 24K01-10 ($40 PCP Visits / $75 Specialist Visits / $15 Labs / Rewards) - POS
  • BlueCare Gold 24K01-33S ($30 PCP Visits / $60 Specialist Visits / Rewards) - POS
  • BlueCare Gold 24K02-20 ($0 Deductible / $15 PCP Visits / $75 Specialist Visits / $20 Labs / Rewards) - POS
  • BlueCare Gold 24K02-28S ($30 PCP Visits / $60 Specialist Visits / Rewards) - POS
  • BlueCare Platinum 24K01-04 ($0 Labs / $15 PCP Visits / $35 Specialist Visits / Rewards) - POS
  • BlueCare Platinum 24K01-07 ($0 Deductible / $0 Labs / $15 PCP Visits / $25 Specialist Visits / Rewards) - POS
  • BlueCare Platinum 24K01-34S ($0 Deductible / $10 PCP Visits / $20 Specialist Visits / Rewards) - POS
  • BlueCare Platinum 24K02-15 ($0 Deductible / $0 Labs / $15 PCP Visits / $25 Specialist Visits / Rewards) - POS
  • BlueCare Platinum 24K02-29S ($0 Deductible / $10 PCP Visits / $20 Specialist Visits / Rewards) - POS
  • BlueCare Silver 24K01-02 ($10 Labs / Rewards) - POS

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Brendan O'brien is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Reviews for DR. BRENDAN O'BRIEN M.D.

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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 1598073181, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
5
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
7
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
1
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 0 → 0 3 → 6 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 0 + 7 + 6 + 1 + 1 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1598073181.

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
Preventive Medicine (Preventive Medicine/Occupational Environmental Medicine)
3551 ROGER BROOKE DR, RM 114-13 (OCCUPTIONAL HEALTH/PREVENTIVE MEDICINE)
SAN ANTONIO, 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

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598073181, enumerated as an "individual" on September 17, 2010.

The provider is located at 3551 ROGER BROOKE DR SAN ANTONIO, TX 78234 and the phone number is (210) 539-9582.

Surgery with taxonomy code 2086S0127X and a focus in Trauma Surgery.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, Florida Blue. Please consult your insurance carrier or call the provider to verify.