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

DR. RANDALL CARTER MARX M.D.
NPI 1790980068
Orthopaedic Surgery - Foot and Ankle Surgery in San Antonio, TX

Q: What is Randall Marx's NPI number?

The NPI number for Randall Marx is 1790980068. It was assigned to this individual provider in the NPPES registry on June 18, 2007.

Q: What is Randall Marx's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Q: When was this NPI record last updated?

The NPPES record for Randall Marx was last updated on November 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 June 18, 2007PECOS Enrolled

74.43/100

CMS Quality Rating

400 CONCORD PLAZA DR STE 300, SAN ANTONIO, TX 78216(210) 593-1480(210) 593-1483 Get Directions Write a Review

NPPES record last updated: November 4, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 4, 2026, Jul 13, 2017, Jun 15, 2017 (3 updates tracked since 2017).

On this page

About Dr. Randall Carter Marx M.d. NPPES

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

DR. RANDALL CARTER MARX M.D. (NPI 1790980068) is an individual foot and ankle surgery provider in San Antonio, Texas, licensed in Texas (N3168) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Baptist Medical Center, and is a graduate of University Of Miami, Lm Miller School Of Medicine (2004).

NPPES Registry Identity

NPI1790980068

Entity TypeIndividualMale

Primary Taxonomy207XX0004X

Provider Legal NameDR. RANDALL CARTER MARXCredential: M.D.

Location Address400 CONCORD PLAZA DR STE 300San Antonio, TX 78216-6991

Mailing Address400 Concord Plaza Dr, Suite 300San Antonio, TX 78216-6991 · (210) 593-1480 · Fax (210) 593-1483

Phone(210) 593-1480

Fax(210) 593-1483

Sole ProprietorNo

Medical School CMSUniversity Of Miami, Lm Miller School Of MedicineGraduated 2004

Enumeration DateJune 18, 2007

Last NPPES UpdateNovember 4, 20263 updates tracked since enumeration

NPPES CertifiedNovember 4, 2026

✔ NPI 1790980068 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Foot and Ankle SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XX0004X

License✔ Licensed in TX · N3168

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, foot and ankle surgeons deal with adult reconstructive foot and ankle surgery, adult foot and ankle trauma, sports medicine foot and ankle, and children's foot and ankle reconstructive surgery.

Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License N3168 (TX)

400 CONCORD PLAZA DR STE 300, San Antonio, TX 78216

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Antidote Health of TX, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc..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

Dr. Randall Carter Marx 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 ID9931225109

PECOS Enrollment IDI20100924000527

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 Reassignment

Medicare enrollment records show Randall Marx reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The San Antonio Orthopaedic Group, LLP

0.1 mi

Orthopaedic Surgery

400 CONCORD PLAZA DR, STE 300
San Antonio, TX 78216

Reassigned Medicare billing, Texas enrollment
163 clinicians in this Medicare group

NPI 1720022494 (210) 804-5416

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 29

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.

801 services572 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

518 services320 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

416 services140 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

297 services183 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.

185 services134 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

168 services138 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

151 services127 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.

136 services136 patients

Hyaluronan or derivative, monovisc, for intra-articular injection, per dose J7327

Monovisc is a treatment involving an injection of hyaluronan or its derivative into a joint, often the knee. This substance, found naturally in joint fluid, helps lubricate and cushion the joint. The injection can help ease pain, improve mobility, and reduce inflammation caused by arthritis.

78 services56 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

61 services15 patients

Mri scan of leg joint without contrast 73721

An MRI scan of your leg joint is a non-invasive procedure that uses magnetic fields and radio waves to create detailed images of the structures within your leg. This helps doctors diagnose or monitor conditions without using contrast dye.

52 services50 patients

Cast supplies, short leg splint, adult (11 years +), fiberglass Q4046

A short leg splint, made from fiberglass, is applied to support and protect an injured leg. Suitable for adults and children aged 11 and up, it's lightweight, durable, and can be molded to your leg shape for comfort and effective healing.

48 services28 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

41 services34 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

40 services40 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

36 services35 patients

Mri scan of leg without contrast 73718

An MRI scan of the leg without contrast is a non-invasive imaging procedure. It uses a magnetic field and radio waves to create detailed images of the structures in your leg, such as bones, muscles, and blood vessels. No contrast dye is used.

34 services34 patients

Aspiration and/or injection of fluid from medium joint 20605

This procedure involves a needle being inserted into a medium-sized joint, such as a knee or shoulder, to remove (aspirate) excess fluid. Sometimes, medication may also be injected into the joint to reduce inflammation and pain.

31 services25 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

30 services25 patients

Application of walking cast covering below knee to toe 29425

A walking cast covering from below the knee to the toe is a type of immobilization device applied to help heal injuries or conditions affecting the lower leg, ankle, or foot. It provides support and protection, allowing safe mobility while recovery takes place.

29 services13 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

25 services25 patients

Removal of noncancer thickened skin growth, 1 growth 11055

This procedure involves the removal of a thickened skin growth that is not cancerous. A healthcare professional will safely extract the growth, usually under local anesthesia. This process helps maintain skin health and prevent potential complications.

21 services19 patients

Application of short leg cast 29405

The application of a short leg cast is a procedure to stabilize and support the lower leg or foot after an injury. A special material is wrapped around the leg, hardening to form a protective shell. This helps to keep the bones in place, reduce pain, and promote healing.

19 services15 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

19 services17 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

18 services15 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

17 services15 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

17 services17 patients

Aspiration and/or injection of fluid from medium joint using ultrasound guidance 20606

This is a procedure where a needle is guided by ultrasound into a medium-sized joint, like a knee or shoulder. The needle can be used to remove fluid, which can relieve pressure and pain, or to inject medication to help with inflammation and discomfort.

15 services12 patients

X-ray of upper spine, 4-5 views 72050

An X-ray of the upper spine with 4-5 views is a non-invasive imaging test. It uses radiation to capture detailed images of the bones and structures in your neck and upper back. This procedure helps identify issues like fractures, infections, or deformities.

12 services12 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Baptist Medical Center

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450058

Location111 Dallas StreetSan Antonio, TX 78205 · Bexar County

Emergency services Birthing friendly

Christus Santa Rosa Medical Center

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450237

Location2827 Babcock RoadSan Antonio, TX 78229 · Bexar County

Emergency services Birthing friendly

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.

74.43/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

60.07

Promoting Interoperability

Improvement Activities

Reported Quality Measures

Closing the Referral Loop: Receipt of Specialist Report

61%412 patients3/55-star benchmark: 87%

Colorectal Cancer Screening

0%2,399 patients1/55-star benchmark: 88%

Controlling High Blood Pressure

63%108 patients3/55-star benchmark: 91%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

94%68 patients1/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

96%5,736 patients4/55-star benchmark: 100%

e-Prescribing

98%137 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

2%1,612 patients1/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

22%3,915 patients1/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

0%4,284 patients1/55-star benchmark: 97%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

17%5,366 patients2/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 46% · 3,015 patients

Patients screened: 49% · 3,015 patients

10%101 patients1/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

66%1,409 patients3/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

76%116 patients3/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 1,700 patients

Patients totalRate: 2% · 1,700 patients

2%1,700 patients4/55-star benchmark: 100%

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 6

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

Walker, folding (pickup), adjustable or fixed height E0135

DME-Other DME · category DE000N

2 suppliers18 claims18 services$34.05 avg. paid by Medicare

Knee orthosis, elastic with condylar pads and joints, with or without patellar control, prefabricated, includes fitting and adjustment L1820

DME-Orthotic Devices · category DF011N

4 suppliers52 claims53 services$107.92 avg. paid by Medicare

Ankle foot orthosis, posterior solid ankle, plastic, custom fabricated L1960

DME-Orthotic Devices · category DF003N

3 suppliers13 claims13 services$433.07 avg. paid by Medicare

Addition to lower extremity orthosis, soft interface for molded plastic, below knee section L2820

DME-Orthotic Devices · category DF000N

4 suppliers23 claims23 services$67.88 avg. paid by Medicare

Shoulder orthosis, figure of eight design abduction restrainer, canvas and webbing, prefabricated, off-the-shelf L3660

DME-Orthotic Devices · category DF000N

1 supplier20 claims20 services$74.58 avg. paid by Medicare

Walking boot, pneumatic and/or vacuum, with or without joints, with or without interface material, prefabricated, off-the-shelf L4361

DME-Orthotic Devices · category DF003N

4 suppliers86 claims86 services$204.11 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 20

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

TRACY ANN ROBBINS ARNP

Nurse Practitioner