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DR. CHAD SIEWERS DO
NPI 1316487903
Emergency Medicine in San Antonio, TX

Active since March 01, 2017PECOS EnrolledAccepts Medicare Assignment
3551 ROGER BROOKE DR, SAN ANTONIO, TX 78234(210) 916-4141 Get Directions Write a Review

NPPES record last updated: February 26, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 22, 2018, Apr 18, 2018, Mar 1, 2017 (3 updates tracked since 2017).

About Dr. Chad Siewers Do NPPES

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

DR. CHAD SIEWERS DO (NPI 1316487903) is an individual emergency medicine provider in San Antonio, Texas, licensed in Virginia (0102205630) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and maintains a secondary practice location in Jbsa Lackland.

NPPES Registry Identity

NPI1316487903
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. CHAD SIEWERSCredential: DO
Location Address3551 ROGER BROOKE DRSan Antonio, TX 78234-4504
Mailing AddressBrooke Army Medical Center, 3551 Roger Brooke DrFort Sam Houston, TX 78234-4504
Phone(210) 916-4141
Sole ProprietorNo
Medical School CMSEdward Via Col Of Osteo Medicine-virginia CampusGraduated 2017
Enumeration DateMarch 1, 2017
Last NPPES UpdateFebruary 26, 20243 updates tracked since enumeration
NPPES CertifiedFebruary 26, 2024
✔ NPI 1316487903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in VA · 0102205630✔ Licensed in TX · U2323
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3551 ROGER BROOKE DR, San Antonio, TX 78234
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Secondary Practice Location 1

Location 11100 Wilford Hall LoopJbsa Lackland, TX 78236-5638 · Phone (210) 916-0808

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Chad Siewers Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2365800851
PECOS Enrollment IDI20230614003973
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.

Medicare Billing Reassignments

5

Medicare enrollment records show Chad Siewers reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Medicine Services Of Tx, PLLC
10 mi
Emergency Medicine
7700 FLOYD CURL DR
San Antonio, TX 78229
  • Reassigned Medicare billing, Texas enrollment
  • 1,452 clinicians in this Medicare group
NPI 1245938729 (210) 575-4000
Bexar Emergency Physicians, PLLC
11 mi
Emergency Medicine
2827 BABCOCK RD
San Antonio, TX 78229
  • Reassigned Medicare billing, Texas enrollment
  • 149 clinicians in this Medicare group
NPI 1548034994 (210) 705-6300
Comal Emergency Physicians, PLLC
39 mi
Emergency Medicine
1301 WONDER WORLD DR
San Marcos, TX 78666
  • Reassigned Medicare billing, Texas enrollment
  • 137 clinicians in this Medicare group
NPI 1588438675 (512) 353-8979
Victoria Emergency Partners LLC
60 mi
Emergency Medicine
1110 N SARAH DEWITT DR
Gonzales, TX 78629
  • Reassigned Medicare billing, Texas enrollment
  • 430 clinicians in this Medicare group
NPI 1164770996 (830) 672-7581
Lone Star Emergency Associates LLC
97 mi
Emergency Medicine
506 E SAN ANTONIO ST
Victoria, TX 77901
  • Reassigned Medicare billing, Texas enrollment
  • 118 clinicians in this Medicare group
NPI 1457709040 (361) 575-7441

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
46 services45 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
19 services18 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus Santa Rosa Hospital-San Marcos

Acute Care Hospitals · San Marcos, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number450272
Location1301 Wonder World DriveSan Marcos, TX 78666 · Hays County
Emergency services Birthing friendly

Methodist Hospital

Acute Care Hospitals · San Antonio, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450388
Location7700 Floyd Curl DrSan Antonio, TX 78229 · Bexar County
Emergency services Birthing friendly

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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
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.

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 Chad Siewers's NPI number?

The NPI number for Chad Siewers is 1316487903. It was assigned to this individual provider in the NPPES registry on March 1, 2017.

Where is Chad Siewers located?

Chad Siewers practices at 3551 Roger Brooke Dr, San Antonio, TX 78234. The listed phone number is (210) 916-4141.

What is Chad Siewers's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Chad Siewers enrolled in Medicare?

Yes. Chad Siewers is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Chad Siewers's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chad Siewers reassigns Medicare benefits to 5 organizations: Emergency Medicine Services Of Tx, PLLC (San Antonio, TX), Bexar Emergency Physicians, PLLC (San Antonio, TX), Comal Emergency Physicians, PLLC (San Marcos, TX), Victoria Emergency Partners LLC (Gonzales, TX) and Lone Star Emergency Associates LLC (Victoria, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Chad Siewers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Chad Siewers accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company, Sendero Health Plans, Local Nonprofit and UnitedHealthcare list Chad Siewers 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.

Is Chad Siewers affiliated with any hospitals?

According to CMS data, Chad Siewers is affiliated with Christus Santa Rosa Hospital-San Marcos and Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Chad Siewers was last updated on February 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.