1. Home
  2. Directory
  3. Texas
  4. Edinburg
  5. Surgery
  6. NPI Profile

JAMES E CHALK M.D.
NPI 1770762098
Surgery - Vascular Surgery in Edinburg, TX

Active since November 02, 2007PECOS EnrolledAccepts Medicare Assignment
2511 CORNERSTONE BLVD STE 2511, EDINBURG, TX 78539(956) 322-7662(830) 632-6568 Get Directions Write a Review

NPPES record last updated: October 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 11, 2022, Jun 23, 2021, Mar 18, 2021 (3 updates tracked since 2021).

About James E Chalk M.d. NPPES

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

JAMES E CHALK M.D. (NPI 1770762098) is an individual vascular surgery provider in Edinburg, Texas, licensed in Texas (S1997) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1770762098
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameJAMES E CHALKCredential: M.D.
Location Address2511 CORNERSTONE BLVD STE 2511Edinburg, TX 78539-8463
Mailing AddressPo Box 4199Mcallen, TX 78502-4199 · (956) 322-7662 · Fax (830) 632-6568
Phone(956) 322-7662
Fax(830) 632-6568
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateNovember 2, 2007
Last NPPES UpdateOctober 11, 20223 updates tracked since enumeration
NPPES CertifiedOctober 11, 2022
✔ NPI 1770762098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
Licenses✔ Licensed in TX · S1997✔ Licensed in TN · 44223✔ Licensed in NC · 180091✔ Licensed in AZ · 43434
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
2511 CORNERSTONE BLVD STE 2511, Edinburg, TX 78539
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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

James E Chalk 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 ID2769508225
PECOS Enrollment IDI20191212000668
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 James Chalk reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

South Texas Vascular Institute, PLLC
Same address
Vascular Surgery
2511 CORNERSTONE BLVD STE 2511
Edinburg, TX 78539
  • Reassigned Medicare billing, Texas enrollment
  • 5 clinicians in this Medicare group
NPI 1184218570 (956) 322-7662
Medical Services Of Texas PLLC
259 mi
Specialist
135 BUNTON CREEK RD STE 102
Kyle, TX 78640
  • Reassigned Medicare billing, Texas enrollment
  • 9 clinicians in this Medicare group
NPI 1851282990 (737) 252-3505

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 4

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.

Ultrasound of leg arteries or artery grafts 93925
An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.
71 services57 patients
Ultrasound study of arm or leg veins with compression and maneuvers 93970
An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.
44 services44 patients
Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 93978
This procedure involves using sound waves to create images of your aorta, vena cava, groin vessels, or bypass grafts. It helps to detect abnormalities or blockages, ensuring your blood flows smoothly. It's painless and non-invasive.
41 services40 patients
Complete ultrasound study of arm and leg arteries 93923
This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78539 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
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 2

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

SOUTH TEXAS VASCULAR INSTITUTE, PLLC
Surgery (Vascular Surgery)
2511 CORNERSTONE BLVD STE 2511
EDINBURG, TX 78539
Hidalgo County (956) 322-7662
RALPH HAMILTON BROOKSHIRE III DO
Surgery (Vascular Surgery)
2511 CORNERSTONE BLVD STE 2511
EDINBURG, TX 78539
Hidalgo County (956) 322-7662

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 James Chalk's NPI number?

The NPI number for James Chalk is 1770762098. It was assigned to this individual provider in the NPPES registry on November 2, 2007.

Where is James Chalk located?

James Chalk practices at 2511 Cornerstone Blvd Ste 2511, Edinburg, TX 78539. The listed phone number is (956) 322-7662.

What is James Chalk's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is James Chalk enrolled in Medicare?

Yes. James Chalk 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 James Chalk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Chalk reassigns Medicare benefits to 2 organizations: South Texas Vascular Institute, PLLC (Edinburg, TX) and Medical Services Of Texas PLLC (Kyle, TX). 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 James Chalk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Chalk accept?

Health plans from Blue Cross and Blue Shield of Texas list James Chalk 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.

When was this NPI record last updated?

The NPPES record for James Chalk was last updated on October 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.