Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WHITTNEY AARON WARREN D.O.
NPI 1689940835
Internal Medicine - Critical Care Medicine in Fort Sam Houston, TX

Q: What is Whittney Warren's NPI number?

The NPI number for Whittney Warren is 1689940835. It was assigned to this individual provider in the NPPES registry on March 31, 2012.

Q: What is Whittney Warren's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Whittney Warren was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 31, 2012PECOS Enrolled

3551 ROGER BROOKE DR, FORT SAM HOUSTON, TX 78234(210) 916-2153(210) 916-0709 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 7, 2026, May 8, 2026, Apr 29, 2026 and 2 more (5 updates tracked since 2018).

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About Dr. Whittney Aaron Warren D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WHITTNEY AARON WARREN D.O. (NPI 1689940835) is an individual critical care medicine provider in Fort Sam Houston, Texas, licensed in Texas (R8680) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Antonio.

NPPES Registry Identity

NPI1689940835

Entity TypeIndividualFemale

Primary Taxonomy207RC0200X

Provider Legal NameDR. WHITTNEY AARON WARRENCredential: D.O.

Location Address3551 ROGER BROOKE DRFort Sam Houston, TX 78234-4504

Mailing Address4502 Medical DrSan Antonio, TX 78229-4402 · (210) 358-4000 · Fax (210) 358-8002

Phone(210) 916-2153

Fax(210) 916-0709

Sole ProprietorNo

Enumeration DateMarch 31, 2012

Last NPPES UpdateAugust 7, 20265 updates tracked since enumeration

NPPES CertifiedAugust 7, 2026

✔ NPI 1689940835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in TX · R8680

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 02004361A (IN), R8680 (TX)

3551 ROGER BROOKE DR, Fort Sam Houston, TX 78234

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Secondary Practice Location 1

Location 14502 Medical DrSan Antonio, TX 78229-4492 · Phone (210) 358-4000 · Fax (210) 358-8002

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Whittney Aaron Warren D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

30 services12 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

25 services24 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

21 services19 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

12 services11 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78234 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 7

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

3 suppliers13 claims23 services$1.31 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers11 claims11 services$10.79 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

2 suppliers20 claims20 services$3.60 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

5 suppliers52 claims52 services$53.71 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

4 suppliers27 claims27 services$27.20 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

1 supplier13 claims5,850 services$0.03 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JANET JONES SIMS CRNA

Nurse Anesthetist, Certified Registered

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (253) 223-6272

JAMES KENNEDY HARDIN PA-C

Physician Assistant

3551 ROGER BROOKE DR
JBSA FT SAM HOUSTON, TX 78234

Bexar County (210) 295-4996

DR. DANIEL VICTOR-CALVIN HAMMOND M.D.

Pediatrics (Pediatric Endocrinology)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 916-3020

JESSICA FULLER LCSW

Social Worker (Clinical)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 808-1859

DR. JASON ROBERT HALL M.D.

Neurological Surgery

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 539-9582

MRS. KATHRYN ELAINE HELLAND LCSW

Social Worker (Clinical)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 539-9582

DR. HALWARD BLEGEN IV DO

Ophthalmology

3551 ROGER BROOKE DR
JBSA FORT SAM HOUSTON, TX 78234

Bexar County (210) 220-7419

KOLE HOLLAND SPAULDING M.D.

Emergency Medicine (Emergency Medical Services)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 539-9582

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Whittney Warren's NPI number?

The NPI number for Whittney Warren is 1689940835. It was assigned to this individual provider in the NPPES registry on March 31, 2012.

Where is Whittney Warren located?

Whittney Warren practices at 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234. The listed phone number is (210) 916-2153.

What is Whittney Warren's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Whittney Warren enrolled in Medicare?

Yes. Whittney Warren is registered in the Medicare PECOS enrollment system.

What insurance does Whittney Warren accept?

Health plans from Blue Cross and Blue Shield of Texas list Whittney Warren as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Whittney Warren was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.