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

MADHU B CHALLAPALLI MD
NPI 1609847029
Internal Medicine - Cardiovascular Disease in San Antonio, TX

Q: What is Madhu Challapalli's NPI number?

The NPI number for Madhu Challapalli is 1609847029. It was assigned to this individual provider in the NPPES registry on February 1, 2006.

Q: What is Madhu Challapalli's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Madhu Challapalli was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 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 February 01, 2006PECOS EnrolledAccepts Medicare Assignment

1139 E SONTERRA BLVD STE 520, SAN ANTONIO, TX 78258(210) 490-6000(210) 490-4658 Get Directions Write a Review

NPPES record last updated: September 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 16, 2026, Jul 21, 2022, Aug 8, 2017 (3 updates tracked since 2017).

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About Madhu B Challapalli Md NPPES

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

MADHU B CHALLAPALLI MD (NPI 1609847029) is an individual cardiovascular disease provider in San Antonio, Texas, licensed in Texas (L0999) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1609847029

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameMADHU B CHALLAPALLICredential: MD

Location Address1139 E SONTERRA BLVD STE 520San Antonio, TX 78258-4347

Mailing Address4411 Medical Dr Ste 300San Antonio, TX 78229-3824 · (210) 614-5400 · Fax (210) 614-2413

Phone(210) 490-6000

Fax(210) 490-4658

Sole ProprietorNo

Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 1997

Enumeration DateFebruary 1, 2006

Last NPPES UpdateSeptember 16, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 16, 2026

✔ NPI 1609847029 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in TX · L0999

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

1139 E SONTERRA BLVD STE 520, San Antonio, TX 78258

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Secondary Practice Locations 3

Location 11925 State Highway 46 WNew Braunfels, TX 78132-5245 · Phone (830) 463-7000

Location 21695 Interstate 35 S Ste 105New Braunfels, TX 78130-7465 · Phone (830) 643-7900

Location 311355 Toepperwein RdLive Oak, TX 78233-3000 · Phone (830) 643-7000 · Fax (830) 629-2491

Other Identifiers 4

OtherP00898228TX · Medicare Railroad

Medicaid165060803TX

Other8CM501TX · Bcbs

OtherTXB112469TX · Medicare

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, Community First 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

Madhu B Challapalli 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 ID8921082959

PECOS Enrollment IDI20040616000866, I20251122000605

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

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

Christus Trinity Clinic Texas

267 mi

Family Medicine

520 DOUGLAS BLVD
Tyler, TX 75702

Reassigned Medicare billing, Texas enrollment
2,745 clinicians in this Medicare group

NPI 1285684225 (903) 315-4119

Challapalli Cardiology PC

1,386 mi

Cardiovascular Disease

5375 RENO CORPORATE DR
Reno, NV 89511

Reassigned Medicare billing, Nevada enrollment
6 clinicians in this Medicare group

NPI 1487376166 (775) 384-1134

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 13

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.

460 services232 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

129 services125 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.

105 services105 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

79 services78 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

69 services40 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.

40 services27 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.

35 services28 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

31 services31 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

20 services20 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

18 services18 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.

17 services17 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

15 services13 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

12 services11 patients

Hospital Affiliations CMS Care Compare

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78258 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

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

Most-billed visit code 99213

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 6

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

JEAN H LIU MD

Internal Medicine (Interventional Cardiology)