Physician Profile
William R. McKenna, MD is a healthcare provider in Harlingen, TX specializing in allergy & immunology. William trained at Texas Tech University Health Science Center School of Medicine, graduating in 1977. Medicare claims data shows William provided 506 services to 208 patients. The services billed most often include administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle, injection of drug or substance under skin or into muscle, and test to measure expiratory airflow and volume.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1713 TREASURE HILLS BLVD STE 1B
Harlingen, TX 78550
Within Allergy and Immunology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Allergies
Digestive
Drug allergies
Drug allergy
Emergency
Environmental
Eye
Food allergies
Immune conditions
Immunology
Lung conditions
Respiratory
Sinus
Sinus conditions
Skin
Skin conditions
Most searched procedures
Allergy treatments
Diagnostic
Infusion
Medication therapy
Medications
Preventive
Respiratory
Tests
Treatment
506 services · 208 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96401 |
156 | As often as other peers in Allergy & Immunology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
106 | As often as other peers in Allergy & Immunology |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
80 | More often than most peers in Allergy & Immunology |
| Administration and interpretation of patient-focused health risk assessment | Treatment | 96160 |
29 | Less often than most peers in Allergy & Immunology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
65 | As often as other peers in Allergy & Immunology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
53 | As often as other peers in Allergy & Immunology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
17 | Less often than most peers in Allergy & Immunology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. McKenna is an allergist in Harlingen, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.
NPI registry
Dr. McKenna is listed at 1713 Treasure Hills Blvd Ste 1B, Harlingen, TX 78550. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (956) 425-9240. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. McKenna's National Provider Identifier is 1164446399. 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
Dr. McKenna attended Texas Tech University Health Science Center School of Medicine, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
Dr. McKenna has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. McKenna provides treatments such as administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. McKenna. 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.