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

NPI Status: Active since July 28, 2005

Contact Information

6800 IH 10 W
STE 350
SAN ANTONIO, TX
ZIP 78201
Phone: (210) 615-0494

NPI Profile Information
Primary Taxonomy
Insurance Plans Accepted
Secondary Locations
Medicare Participation & PECOS Status
Areas of Expertise
Durable Medical Equipment
Physician Visit Costs
Quality Reporting
Hospital Affiliations - Privileges
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Years of Experience 46
Internal Medicine
Clinical Cardiac Electrophysiology
Accepts Insurance
Accepts Medicare Approved Payment
PECOS Enrolled
Medicare Quality Reporting

About CHARLES MACHELL

This page provides the complete NPI Profile along with additional information for Charles Machell, an internist established in San Antonio, Texas with a medical specialization in Internal Medicine, focusing in clinical cardiac electrophysiology and more than 46 years of experience. He graduated from University Of Texas Medical Branch At Galveston in 1980. The healthcare provider is registered in the NPI registry with number 1245230507 assigned on July 2005. The practitioner's primary taxonomy code is 207RC0001X with license number F6894 (TX). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1245230507
Provider Name: CHARLES H MACHELL M.D.
Gender: Male
Entity Type: Individual
Location Address: 6800 IH 10 W STE 350 SAN ANTONIO, TX 78201
Location Phone: (210) 615-0494
Mailing Address: PO BOX 2600 SAN ANTONIO, TX 78299
Medical School Name: UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduation Year: 1980
Is Sole Proprietor?: No
Enumeration Date: 07-28-2005
Last Update Date: 07-16-2025
Code Navigator

An internist like Charles Machell is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

4604 NE Stallings Dr
Nacogdoches, TX 75965
(903) 315-4880
707 E Marshall Ave
Longview, TX 75601
(903) 315-5400
703 E Marshall Ave Ste 5007
Longview, TX 75601
(903) 315-5400

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification: Internal Medicine Clinical Cardiac Electrophysiology
Taxonomy Code: 207RC0001X
Type: Allopathic & Osteopathic Physicians
License No.: F6894
License State: TX
Taxonomy Description: 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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Blue Cross and Blue Shield of Texas

Blue Advantage Bronze HMO? 204 - HMO
Blue Advantage Bronze HMO? 301 - HMO
Blue Advantage Bronze HMO? Standard - HMO
Blue Advantage Gold HMO? 206 - HMO
Blue Advantage Gold HMO? 603 - HMO
Blue Advantage Gold HMO? Standard - HMO
Blue Advantage Plus Bronze? 303 - POS
Blue Advantage Plus Bronze? 305 - POS
Blue Advantage Plus Bronze? Standard - POS
Blue Advantage Plus Gold? 203 - POS
Blue Advantage Plus Gold? 803 - POS
Blue Advantage Plus Gold? Standard - POS
Blue Advantage Plus Silver? 202 - POS
Blue Advantage Plus Silver? 605 - POS
Blue Advantage Plus Silver? Standard - POS
Blue Advantage Security HMO? 200 - HMO
Blue Advantage Silver HMO? 205 - HMO
Blue Advantage Silver HMO? 801 - HMO
Blue Advantage Silver HMO? Standard - HMO

CHRISTUS Health Plan

CHRISTUS Bronze (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Bronze + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Bronze Essential - HMO
CHRISTUS Bronze Essential (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Bronze Essential + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Bronze Essential Plus - HMO
CHRISTUS Catastrophic (3 Free PCP visits) - HMO
CHRISTUS Gold - HMO
CHRISTUS Gold + Dental & Vision + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Gold + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Gold Essential - HMO
CHRISTUS Gold Essential ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) - HMO
CHRISTUS Gold Essential + Dental & Vision ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) - HMO
CHRISTUS Gold Essential Plus - HMO
CHRISTUS Gold Plus - HMO
CHRISTUS Silver Essential - HMO
CHRISTUS Silver Essential 70 ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Silver Essential 70 + Dental & Vision ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
CHRISTUS Silver Essential Plus - HMO
CHRISTUS Standard Expanded Bronze - HMO

UnitedHealthcare

UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
UHC Bronze Essential ($0 Virtual Urgent Care) - HMO
UHC Bronze Standard - HMO
UHC Bronze Standard+ (Dental + Vision) - HMO
UHC Gold Advantage ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
UHC Gold Advantage+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
UHC Gold Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
UHC Gold Standard - HMO
UHC Silver Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx) - HMO
UHC Silver Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision) - HMO
UHC Silver Standard - HMO
UHC Silver Value ($0 Virtual Urgent Care) - HMO
UHC Silver Value+ ($0 Virtual Urgent Care, Dental + Vision) - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Charles Machell is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Charles Machell is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

Is the provider registered in PECOS? Yes
PECOS PAC ID: 2062323066
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.
PECOS Enrollment ID: I20040305001015
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.
Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

DME-Other DME (DE001N)
Continuous positive airway pressure (cpap) device (HCPCS:E0601)
1 DME suppliers used 11 Medicare Claims 11 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Comprehensive electrophysiologic evaluation with catheter destruction of abnormality of upper chamber of heart causing supraventricular tachycardia (rapid heart rate)
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Evaluation of cardiac rhythm monitor system, remote up to 30 days
Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days
Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days
Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days
Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec
New patient office or other outpatient visit, 45-59 minutes
New patient office or other outpatient visit, 60-74 minutes
Pacemaker insertion or repair
Programming of dual lead implantable defibrillator system
Programming of dual lead pacemaker system
Programming of multiple lead implantable defibrillator system
Programming of single lead pacemaker system
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
Ultrasound evaluation of heart blood vessel with review by radiologist
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes

Physician Visit Costs

The typical physician office visit costs for Medicare beneficiaries in this area are: $31.6 for a new patient copayment and $24.26 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 78201 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

Average New Patient Price $126.4
Minimum New Patient Price $54.84
Maximum New Patient Price $166.88

Average New Patient Copayment $31.6
Minimum New Patient Copayment $13.71
Maximum New Patient Copayment $41.72

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

Average Established Patient Price $97.05
Minimum Established Patient Price $17.52
Maximum Established Patient Price $136.11

Average Established Patient Copayment $24.26
Minimum Established Patient Copayment $4.38
Maximum Established Patient Copayment $34.02

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure	Performance	Number of Patients
Documentation of Current Medications in the Medical Record	79%	2662
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. This list must include ALL known prescriptions, over-the-counters, herbals, and vitamin/mineral/dietary (nutritional) supplements AND must contain the medications' name, dosage, frequency and route of administration
e-Prescribing	85%	1922
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
Falls: Screening for Future Fall Risk	98%	1164
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
Implementation of fall screening and assessment programs	Yes	N/A
Implementation of fall screening and assessment programs to identify patients at risk for falls and address modifiable risk factors (e.g., Clinical decision support/prompts in the electronic health record that help manage the use of medications, such as benzodiazepines, that increase fall risk).
Implementation of formal quality improvement methods, practice changes, or other practice improvement processes	Yes	N/A
Adopt a formal model for quality improvement and create a culture in which all staff actively participates in improvement activities that could include one or more of the following such as: • Multi-Source Feedback; • Train all staff in quality improvement methods; • Integrate practice change/quality improvement into staff duties; • Engage all staff in identifying and testing practices changes; • Designate regular team meetings to review data and plan improvement cycles; • Promote transparency and accelerate improvement by sharing practice level and panel level quality of care, patient experience and utilization data with staff; and/or • Promote transparency and engage patients and families by sharing practice level quality of care, patient experience and utilization data with patients and families, including activities in which clinicians act upon patient experience data.
Implementation of medication management practice improvements	Yes	N/A
Manage medications to maximize efficiency, effectiveness and safety that could include one or more of the following: Reconcile and coordinate medications and provide medication management across transitions of care settings and eligible clinicians or groups; Integrate a pharmacist into the care team; and/or Conduct periodic, structured medication reviews.
Medication Reconciliation	99%	1607
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.
Patient-Specific Education	95%	1580
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.
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan	88%	1568
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 twelve months of the current encounter Normal Parameters: Age 18 years and older BMI >= 18.5 and < 25 kg/m2
Provide Patient Access	100%	1580
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 certain information.
Secure Messaging	63%	1580
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 message sent by the patient (or the patient-authorized representative) during the performance period.
Security Risk Analysis	Yes	N/A
Conduct or review a security risk analysis in accordance with the requirements in 45 CFR 164.308(a)(1), including addressing the security (to include encryption) of ePHI data created or maintained by certified EHR technology in accordance with requirements in 45 CFR164.312(a)(2)(iv) and 45 CFR 164.306(d)(3), and implement security updates as necessary and correct identified security deficiencies as part of the MIPS eligible clinician's risk management process.
Specialized Registry Reporting	Yes	N/A
The MIPS eligible clinician is in active engagement to submit data to specialized registry. To earn a 5 % bonus in the promoting interoperability performance category score for submitting to one or more public health or clinical data registries also attest to PI_TRANS_PHCDRR_3_MULTI.
Use of decision support and standardized treatment protocols	Yes	N/A
Use decision support and standardized treatment protocols to manage workflow in the team to meet patient needs.
Use of High-Risk Medications in the Elderly	0% "Inverse Quality Measure" This is an inverse quality measure, a lower rate means the provider is rated better.	1120
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. 2) Percentage of patients who were ordered at least two of the same high-risk medication

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Charles Machell is affiliated with the following medical facilities:

Hospital Name	Address	Phone	Hospital Type	Overall Rating
CHRISTUS GOOD SHEPHERD MEDICAL CENTER	700 E MARSHALL AVE LONGVIEW, TX 75601	(903) 927-6712	Acute Care Hospitals
CHRISTUS MOTHER FRANCES HOSPITAL	800 EAST DAWSON TYLER, TX 75701	(903) 593-8441	Acute Care Hospitals

NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1245230507, we treat the final digit (7) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

Target digit

Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 4 → 8 2 → 4 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 8 + 5 + 4 + 3 + 0 + 5 + 0 + 24 = 53

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1245230507.

Other Providers at the Same Location

The following 2 providers are registered at the same or a nearby location.

PAYAM DEHGHANI MD

Specialist

6800 IH 10 W, SUITE 200
SAN ANTONIO, TX 78201

Bexar County (210) 271-3203

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

About CHARLES MACHELL

Location Map

Secondary Locations

Specialty - Primary Taxonomy

Internal Medicine Clinical Cardiac Electrophysiology

Insurance Plans Accepted

Medicare Participation & PECOS Enrollment Status

Is the provider registered in PECOS? Yes

PECOS PAC ID: 2062323066

PECOS Enrollment ID: I20040305001015

Accepts Medicare Assignment? Yes

Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

Eligible to Order or Refer a Home Health Agency (HHA): Yes

Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

Durable Medical Equipment

Areas of Expertise

Comprehensive electrophysiologic evaluation with catheter destruction of abnormality of upper chamber of heart causing supraventricular tachycardia (rapid heart rate)

Established patient office or other outpatient visit, 30-39 minutes

Established patient office or other outpatient visit, 40-54 minutes

Evaluation of cardiac rhythm monitor system, remote up to 30 days

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days

Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days

Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec

New patient office or other outpatient visit, 45-59 minutes

New patient office or other outpatient visit, 60-74 minutes

Pacemaker insertion or repair

Programming of dual lead implantable defibrillator system

Programming of dual lead pacemaker system

Programming of multiple lead implantable defibrillator system

Programming of single lead pacemaker system

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only

Ultrasound evaluation of heart blood vessel with review by radiologist

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes

Physician Visit Costs

New Patients Visit Costs *

Established Patients Visit Costs *

Quality Reporting

Find Provider Hospital Affiliations - Privileges

Reviews for CHARLES H MACHELL M.D.

NPI NPI Number Validation

How NPI Validation Works

Digit-by-digit view

Step 1: Double every other digit from the right

Step 2: Add all digits plus the NPI constant

Step 3: Find the amount needed to reach the next multiple of 10

Other Providers at the Same Location

Frequently Asked Questions