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MUGABE WALKER MD
NPI 1922304195
Internal Medicine in San Antonio, TX

Active since February 04, 2011PECOS EnrolledAccepts Medicare Assignment
83.97/100
CMS Quality Rating
4522 FREDERICKSBURG RD STE A14, SAN ANTONIO, TX 78201(210) 733-3005(210) 733-3001 Get Directions Write a Review

NPPES record last updated: April 7, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 7, 2026, Oct 15, 2020 (2 updates tracked since 2020).

About Mugabe Walker Md NPPES

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

MUGABE WALKER MD (NPI 1922304195) is an individual internal medicine provider in San Antonio, Texas, licensed in Texas (S9079) and active in the NPI registry since February 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1922304195
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMUGABE WALKERCredential: MD
Location Address4522 FREDERICKSBURG RD STE A14San Antonio, TX 78201-6595
Mailing Address6101 Blue Lagoon Dr Ste 200Miami, FL 33126-3168 · (407) 533-6836 · Fax (407) 770-0661
Phone(210) 733-3005
Fax(210) 733-3001
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateFebruary 4, 2011
Last NPPES UpdateApril 7, 20262 updates tracked since enumeration
NPPES CertifiedApril 7, 2026
✔ NPI 1922304195 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in TX · S9079✔ Licensed in PA · MT193877✔ Licensed in CO · 51132
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X · License S9079 (TX)
4522 FREDERICKSBURG RD STE A14, San Antonio, TX 78201
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Other Identifiers 1

Medicaid98835530CO

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

Mugabe Walker Md 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 ID8628227220
PECOS Enrollment IDI20120925000362, I20250807002982
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

2

Medicare enrollment records show Mugabe Walker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Conviva Medical Center Management Of Texas, P.A.
13 mi
Internal Medicine
12602 TOEPPERWEIN RD STE 100
Live Oak, TX 78233
  • Reassigned Medicare billing, Texas enrollment
  • 161 clinicians in this Medicare group
NPI 1770988990 (210) 654-0030
Lutheran Hospital Association Of The San Luis Valley
686 mi
Orthopaedic Surgery
19021 HIGHWAY 285
La Jara, CO 81140
  • Reassigned Medicare billing, Colorado enrollment
  • 203 clinicians in this Medicare group
NPI 1063690600 (719) 274-6000

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 6

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.

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.
448 services201 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
306 services52 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
105 services83 patients
Test for exercise-induced lung stress 94618
An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.
15 services12 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
13 services13 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78201 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.97/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.8
Promoting Interoperability99
Improvement Activities40
Cost57.16

Referred Medical Equipment & Supplies CMS DME claims 9

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

Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
4 suppliers12 claims72 services$2.94 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
4 suppliers14 claims14 services$13.76 avg. paid by Medicare
Stationary oxygen contents, liquid, 1 month's supply = 1 unit E0442
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$50.21 avg. paid by Medicare
Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443
DME-Oxygen and Supplies · category DC000N
3 suppliers11 claims11 services$40.63 avg. paid by Medicare
Portable oxygen contents, liquid, 1 month's supply = 1 unit E0444
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$50.86 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier12 claims12 services$768.64 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 2

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

DR. LETICIA A PORET MD PA
Internal Medicine
4522 FREDERICKSBURG RD STE A14
SAN ANTONIO, TX 78201
Bexar County (210) 733-3005
DR. HETTA ATKINS ACNP
Nurse Practitioner
4522 FREDERICKSBURG RD STE A14
SAN ANTONIO, TX 78201
Bexar County (210) 733-3005

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 Mugabe Walker's NPI number?

The NPI number for Mugabe Walker is 1922304195. It was assigned to this individual provider in the NPPES registry on February 4, 2011.

Where is Mugabe Walker located?

Mugabe Walker practices at 4522 Fredericksburg Rd Ste A14, San Antonio, TX 78201. The listed phone number is (210) 733-3005.

What is Mugabe Walker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mugabe Walker enrolled in Medicare?

Yes. Mugabe Walker 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 Mugabe Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mugabe Walker reassigns Medicare benefits to 2 organizations: Conviva Medical Center Management Of Texas, P.A. (Live Oak, TX) and Lutheran Hospital Association Of The San Luis Valley (La Jara, CO). 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 Mugabe Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mugabe Walker was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.