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DR. RONALD LEE COX M.D.
NPI 1962404699
Allergy & Immunology in Austin, TX

Active since August 12, 2005PECOS EnrolledAccepts Medicare Assignment
6611 RIVER PLACE BLVD STE 100, AUSTIN, TX 78730(512) 732-2774(512) 331-5192 Get Directions Write a Review

NPPES record last updated: July 18, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 18, 2023, Mar 7, 2023 (2 updates tracked since 2023).

About Dr. Ronald Lee Cox M.d. NPPES

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

DR. RONALD LEE COX M.D. (NPI 1962404699) is an individual allergy & immunology provider in Austin, Texas, licensed in Texas (N3582) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, maintains 6 additional practice locations, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1994).

NPPES Registry Identity

NPI1962404699
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameDR. RONALD LEE COXCredential: M.D.
Location Address6611 RIVER PLACE BLVD STE 100Austin, TX 78730-1163
Mailing Address303 E Main StRound Rock, TX 78664-5246 · (512) 732-2774
Phone(512) 732-2774
Fax(512) 331-5192
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1994
Enumeration DateAugust 12, 2005
Last NPPES UpdateJuly 18, 20232 updates tracked since enumeration
NPPES CertifiedJuly 18, 2023
✔ NPI 1962404699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Licenses✔ Licensed in TX · N3582✔ Licensed in OH · 35-06-9141-C
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
6611 RIVER PLACE BLVD STE 100, Austin, TX 78730
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Secondary Practice Locations 6

Location 15625 Eiger Rd Ste 160Austin, TX 78735-8980 · Phone (512) 732-2774
Location 212801 Shops Pkwy Ste 400Bee Caves, TX 78738-6446 · Phone (512) 732-2774
Location 35656 Bee Caves Rd Ste G201West Lake Hills, TX 78746-5236 · Phone (512) 732-2774
Location 4303 E Main StRound Rock, TX 78664-5246 · Phone (512) 732-2774 ext. 307
Location 53101 Highway 71 E Ste 210Bastrop, TX 78602-5157 · Phone (512) 732-2774
Location 611762 Jollyville RdAustin, TX 78759-3937 · Phone (512) 732-2774

Other Identifiers 1

Medicaid2103324OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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

Dr. Ronald Lee Cox 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 ID1456389626
PECOS Enrollment IDI20091112000290
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

3

Medicare enrollment records show Ronald Cox reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

South Austin Family Practice Clinic, PLLC
10 mi
Family Medicine
5625 EIGER RD, SUITE 200
Austin, TX 78735
  • Reassigned Medicare billing, Texas enrollment
  • 66 clinicians in this Medicare group
NPI 1235130592 (512) 892-7076
Greater Austin Allergy, Asthma & Immunology PA
13 mi
Allergy & Immunology
303 E MAIN ST
Round Rock, TX 78664
  • Reassigned Medicare billing, Texas enrollment
  • 11 clinicians in this Medicare group
NPI 1275978306 (512) 732-2774
Harker Heights Allergy
48 mi
Allergy & Immunology
2025 MEMORY LN, STE 400A
Harker Heights, TX 76548
  • Reassigned Medicare billing, Texas enrollment
  • 6 clinicians in this Medicare group
NPI 1730438631 (542) 793-3842

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.

Injection, inclisiran, 1 mg J1306
Inclisiran is an injection administered to lower cholesterol levels. It works by blocking the production of LDL (bad cholesterol) in your liver. This medicine is often used when diet changes and other medications have not been effective.
13,916 services27 patients
Injection, omalizumab, 5 mg J2357
Omalizumab is a medication given via injection. It's used to treat severe allergic asthma and chronic hives when other treatments fail. The 5mg dose is determined by your doctor based on your weight and condition.
7,575 services12 patients
Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
2,880 services34 patients
Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
2,225 services75 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
900 services101 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.
236 services46 patients

Referred Medical Equipment & Supplies CMS DME claims 3

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

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221
DME-Other DME · category DE017N
1 supplier13 claims13 services$18.41 avg. paid by Medicare
Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222
DME-Medical/Surgical Supplies · category DA000N
1 supplier13 claims13 services$35.39 avg. paid by Medicare
Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg immuneglobulin J1575
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier13 claims5,200 services$12.34 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Ronald Cox's NPI number?

The NPI number for Ronald Cox is 1962404699. It was assigned to this individual provider in the NPPES registry on August 12, 2005.

Where is Ronald Cox located?

Ronald Cox practices at 6611 River Place Blvd Ste 100, Austin, TX 78730. The listed phone number is (512) 732-2774.

What is Ronald Cox's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Ronald Cox enrolled in Medicare?

Yes. Ronald Cox 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 Ronald Cox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Cox reassigns Medicare benefits to 3 organizations: South Austin Family Practice Clinic, PLLC (Austin, TX), Greater Austin Allergy, Asthma & Immunology PA (Round Rock, TX) and Harker Heights Allergy (Harker Heights, 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 Ronald Cox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronald Cox accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 8 other insurers list Ronald Cox 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 Ronald Cox was last updated on July 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.