Physician Profile
John F. Villacis, MD
Unclaimed ProfileAbout Dr. Villacis
Based in Austin, TX, John F. Villacis, MD is listed in the NPI registry under allergy. John graduated from Texas Tech University Health Science Center School of Medicine in 1999. John is also listed as specializing in allergy & immunology. According to Medicare claims data, John cared for 233 Medicare patients across 654 services. The services billed most often include professional service for preparation and provision of 1 or more antigens, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and professional service for multiple injections of allergen.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (512) 901-4002
- Email not available
Practice Locations
12221 N MOPAC EXPY
Austin, TX 78758
Procedures Most Often Billed to Medicare
654 services · 233 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
46 | More often than most peers in Allergy |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
240 | Less often than most peers in Allergy |
| Professional service for multiple injections of allergen | Treatment | 95117 |
82 | Less often than most peers in Allergy |
| Professional service for single injection of allergen | Treatment | 95115 |
71 | Less often than most peers in Allergy |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
94 | More often than most peers in Allergy |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
39 | Less often than most peers in Allergy |
| Gammaglobulin (immune system protein) measurement | Lab test | 82784 |
34 | Too few peers to compare |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
24 | Too few peers to compare |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
13 | Less often than most peers in Allergy |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 | Less often than most peers in Allergy |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other allergy specialists in Austin 2
Same specialty, same city.
Trained at Texas Tech University Health Science Center School of Medicine 2
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1999 at Texas Tech University Health Science Center School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in TX who bill this service to Medicare most often.
- Quest Diagnostics Clinical Laboratories INC
- Clinical Pathology Laboratories, INC.
- Quest Diagnostics Clinical Laboratories INC
- Laboratory Corporation of America
- Laboratory Corporation of America
- Lone Star Pathology PLLC
- Medical Clinic of Houston, LLP
- The University of Texas Southwestern Medical Center at Dallas
Common questions
What does Dr. Villacis specialize in?
Dr. Villacis is an allergy in Austin, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Villacis located?
Dr. Villacis is listed at 12221 N Mopac Expy, Austin, TX 78758. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Villacis's phone number?
The number on file is (512) 901-4002. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Villacis's NPI number?
Dr. Villacis's National Provider Identifier is 1437115888. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Villacis go to medical school?
Dr. Villacis attended Texas Tech University Health Science Center School of Medicine, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Villacis been practicing?
Dr. Villacis has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Villacis do most often?
According to Medicare billing data, Dr. Villacis performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as professional service for preparation and provision of 1 or more antigens and professional service for multiple injections of allergen, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Villacis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Villacis. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.