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

CHARLES LEWIS KIEFFER M.D.
NPI 1053842831
Emergency Medicine in Jbsa Ft Sam Houston, TX

Active since March 23, 2017PECOS EnrolledAccepts Medicare Assignment
3551 ROGER BROOKE DR, JBSA FT SAM HOUSTON, TX 78234(210) 916-4141 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 21, 2026, Apr 9, 2024, Dec 23, 2022 and 5 more (8 updates tracked since 2017).

About Charles Lewis Kieffer M.d. NPPES

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

CHARLES LEWIS KIEFFER M.D. (NPI 1053842831) is an individual emergency medicine provider in Jbsa Ft Sam Houston, Texas, licensed in Texas (T5944) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1053842831
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameCHARLES LEWIS KIEFFERCredential: M.D.
Location Address3551 ROGER BROOKE DRJbsa Ft Sam Houston, TX 78234-4504
Mailing Address3551 Roger Brooke DrFort Sam Houston, TX 78234-4504 · (952) 463-5575
Phone(210) 916-4141
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2017
Enumeration DateMarch 23, 2017
Last NPPES UpdateSeptember 21, 20268 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2026
✔ NPI 1053842831 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in TX · T5944✔ Licensed in MN · 67041✔ Licensed in KY · R4465
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.
3551 ROGER BROOKE DR, Jbsa Ft Sam Houston, TX 78234
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Secondary Practice Locations 2

Location 11025 Marsh StMankato, MN 56001-4752 · Phone (507) 625-4031
Location 21100 Wilford Hall Loop Bldg 4554Jbsa Lackland, TX 78236-5638 · Phone (952) 463-5575

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare.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

Charles Lewis Kieffer M.d. 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 ID1658629738
PECOS Enrollment IDI20220429001114
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 Charles Kieffer 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
Prestige Emergency Consultants LLC
12 mi
Emergency Medicine
2810 N LOOP 1604 W, SUITE 110
San Antonio, TX 78248
  • Reassigned Medicare billing, Texas enrollment
  • 52 clinicians in this Medicare group
NPI 1730637778 (210) 504-4837
Mayo Clinic Health System-Fairmont
1,002 mi
Multi-Specialty
800 MEDICAL CENTER DR
Fairmont, MN 56031
  • Reassigned Medicare billing, Minnesota enrollment
  • 806 clinicians in this Medicare group
NPI 1366410862 (507) 238-8100
Mayo Clinic Health System-St James
1,023 mi
Critical Access
1101 MOULTON AND PARSONS DR
Saint James, MN 56081
  • Reassigned Medicare billing, Minnesota enrollment
  • Also billed through NPI 1023177730 (Minnesota)
  • 390 clinicians in this Medicare group
NPI 1639198732 (507) 375-3261
Mayo Clinic Health System-Southwest Minnesota Region
1,043 mi
Multi-Specialty
1025 MARSH ST
Mankato, MN 56001
  • Reassigned Medicare billing, Minnesota enrollment
  • Also billed through NPI 1740256668 (Minnesota), NPI 1124035282 (Minnesota)
  • 1,572 clinicians in this Medicare group
NPI 1578545422 (507) 625-4031

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 2

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.
20 services20 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.
19 services19 patients

Hospital Affiliations CMS Care Compare

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

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 Charles Kieffer's NPI number?

The NPI number for Charles Kieffer is 1053842831. It was assigned to this individual provider in the NPPES registry on March 23, 2017.

Where is Charles Kieffer located?

Charles Kieffer practices at 3551 Roger Brooke Dr, Jbsa Ft Sam Houston, TX 78234. The listed phone number is (210) 916-4141.

What is Charles Kieffer's specialty?

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

Is Charles Kieffer enrolled in Medicare?

Yes. Charles Kieffer 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 Charles Kieffer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Kieffer reassigns Medicare benefits to 5 organizations: Emergency Medicine Services Of Tx, PLLC (San Antonio, TX), Prestige Emergency Consultants LLC (San Antonio, TX), Mayo Clinic Health System-Fairmont (Fairmont, MN), Mayo Clinic Health System-St James (Saint James, MN) and Mayo Clinic Health System-Southwest Minnesota Region (Mankato, MN). 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 Charles Kieffer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Charles Kieffer accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list Charles Kieffer 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 Charles Kieffer affiliated with any hospitals?

According to CMS data, Charles Kieffer is affiliated with Methodist Hospital.

When was this NPI record last updated?

The NPPES record for Charles Kieffer was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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.