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CHARLES H MACHELL M.D.
NPI 1245230507
Internal Medicine - Clinical Cardiac Electrophysiology in San Antonio, TX

Active since July 28, 2005PECOS EnrolledAccepts Medicare Assignment
6800 IH 10 W, STE 350, SAN ANTONIO, TX 78201(210) 615-0494 Get Directions Write a Review

NPPES record last updated: July 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Charles H Machell M.d. NPPES

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

CHARLES H MACHELL M.D. (NPI 1245230507) is an individual clinical cardiac electrophysiology provider in San Antonio, Texas, licensed in Texas (F6894) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Christus Good Shepherd Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1245230507
Entity TypeIndividualMale
Primary Taxonomy207RC0001X
Provider Legal NameCHARLES H MACHELLCredential: M.D.
Location Address6800 IH 10 W, STE 350San Antonio, TX 78201-2038
Mailing AddressPo Box 2600San Antonio, TX 78299-2600
Phone(210) 615-0494
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 1980
Enumeration DateJuly 28, 2005
Last NPPES UpdateJuly 16, 2025
NPPES CertifiedJuly 16, 2025
✔ NPI 1245230507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RC0001X
License✔ Licensed in TX · F6894
Definition
A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.
6800 IH 10 W, San Antonio, TX 78201
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1707 E Marshall AveLongview, TX 75601-5545 · Phone (903) 315-5400
Location 24604 NE Stallings DrNacogdoches, TX 75965-1608 · Phone (903) 315-4880
Location 3703 E Marshall Ave Ste 5007Longview, TX 75601-5554 · Phone (903) 315-5400

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.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 H Machell 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 ID2062323066
PECOS Enrollment IDI20040305001015
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 Charles Machell 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
276 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
Presbyterian Healthcare Services
436 mi
Rural
2100 MARTIN LUTHER KING JR BLVD
Clovis, NM 88101
  • Reassigned Medicare billing, New Mexico enrollment
  • 2,331 clinicians in this Medicare group
NPI 1629053509 (505) 469-7577

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 10

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.

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.
394 services213 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.
279 services172 patients
Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294
This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.
155 services85 patients
Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 93295
This procedure involves remotely monitoring your implantable defibrillator system, which can have single, dual, or multiple leads. Over a period of up to 90 days, the system's performance is evaluated to ensure it's working properly and providing the necessary heart rhythm support.
67 services33 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.
57 services57 patients
Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248
This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.
52 services50 patients

Hospital Affiliations CMS Care Compare 4

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

Christus Good Shepherd Medical Center

Acute Care Hospitals · Longview, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450032
Location700 E Marshall AveLongview, TX 75601 · Gregg County
Emergency services Birthing friendly

Christus Mother Frances Hospital

Acute Care Hospitals · Tyler, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450102
Location800 East DawsonTyler, TX 75701 · Smith County
Emergency services Birthing friendly

Longview Regional Medical Center

Acute Care Hospitals · Longview, TX
2/5 CMS rating
OwnershipProprietary
CMS Certification Number450702
Location2901 N Fourth StLongview, TX 75605 · Gregg County
Emergency services Birthing friendly

Baylor Scott & White Texas Spine & Joint Hospital

Acute Care Hospitals · Tyler, TX
OwnershipPhysician
CMS Certification Number450864
Location1814 Roseland BoulevardTyler, TX 75701 · Smith County
Emergency services

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.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
79%2,662 patients2/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
85%1,922 patients2/55-star benchmark: 99%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
98%1,164 patients4/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%1,607 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
95%1,580 patients4/55-star benchmark: 97%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
88%1,568 patients4/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
100%1,580 patients5/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
63%1,580 patients3/55-star benchmark: 89%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 1,120 patients
0%1,120 patients5/55-star benchmark: 100%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
14%1,580 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

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

Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier11 claims11 services$27.86 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.

CARDIAC CATH LAB OF SAN ANTONIO LP
Clinic/Center (Multi-Specialty)
6800 IH 10 W, SUITE 120
SAN ANTONIO, TX 78201
Bexar County (713) 812-7586
PAYAM DEHGHANI MD
Specialist
6800 IH 10 W, SUITE 200
SAN ANTONIO, TX 78201
Bexar County (210) 271-3203

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 Machell's NPI number?

The NPI number for Charles Machell is 1245230507. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Where is Charles Machell located?

Charles Machell practices at 6800 Ih 10 W Ste 350, San Antonio, TX 78201. The listed phone number is (210) 615-0494.

What is Charles Machell's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Is Charles Machell enrolled in Medicare?

Yes. Charles Machell 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 Machell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Machell reassigns Medicare benefits to 2 organizations: Christus Trinity Clinic Texas (Tyler, TX) and Presbyterian Healthcare Services (Clovis, NM). 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 Machell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Charles Machell accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and Community First list Charles Machell 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 Machell affiliated with any hospitals?

According to CMS data, Charles Machell is affiliated with Christus Good Shepherd Medical Center, Christus Mother Frances Hospital, Longview Regional Medical Center and Baylor Scott & White Texas Spine & Joint Hospital.

When was this NPI record last updated?

The NPPES record for Charles Machell was last updated on July 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.