William Mckenna, MD
NPI 1164446399 · Allergy & Immunology Physician · Harlingen, TX
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mckenna, MD is a Allergy & Immunology Physician provider in Harlingen, TX (NPI 1164446399).
Provider details
- NPI number
- 1164446399
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- E8709 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
506 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 156 | $66 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 106 | $14 |
| Test to Measure Expiratory Airflow and Volume94010 | 80 | $26 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 65 | $87 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 53 | $122 |
| Administration and Interpretation of Patient-Focused Health Risk Assessment96160 | 29 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 203 | 65 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 89 | 38 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 67 | 14 |
| Azelastine Hcl | 64 | 29 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 62 | 15 |
| Montelukast Sodium | 62 | 21 |
| Dupilumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,004 across 133 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2020-10-15
- Certified
- 2020-10-15
Frequently asked questions
- What is William Mckenna's NPI number?
- William Mckenna's National Provider Identifier (NPI) is 1164446399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mckenna's specialty?
- William Mckenna is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is William Mckenna located?
- William Mckenna's practice location on file with NPPES is 1713 Treasure Hills Blvd Ste 1b, Harlingen, TX 78550-8913.
- What is William Mckenna's phone number?
- The practice phone number listed in the NPPES registry for William Mckenna is (956) 425-9240.
- Does William Mckenna accept Medicare?
- William Mckenna is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mckenna's NPI active?
- Yes — William Mckenna's NPI (1164446399) is active in the NPPES registry as of the last update on 2020-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.