Donald Dillahunty, DO
NPI 1255303020 · Family Medicine Physician · Mesquite, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Dillahunty, DO is a Family Medicine Physician provider in Mesquite, TX (NPI 1255303020).
Provider details
- NPI number
- 1255303020
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- H7999 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
221 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 123 | $88 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 27 | $14 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 23 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $121 |
| Automated Urinalysis Test81003 | 15 | $2 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 44 | 44 |
| Etodolac | 24 | 24 |
| Doxycycline Hyclate | 22 | 20 |
| Amoxicillin | 21 | 21 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 18 | 17 |
| Prednisone | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-06
- Last updated
- 2011-05-31
Frequently asked questions
- What is Donald Dillahunty's NPI number?
- Donald Dillahunty's National Provider Identifier (NPI) is 1255303020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Dillahunty's specialty?
- Donald Dillahunty is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Dillahunty located?
- Donald Dillahunty's practice location on file with NPPES is 1280 N Town East Blvd, Mesquite, TX 75150-4606.
- What is Donald Dillahunty's phone number?
- The practice phone number listed in the NPPES registry for Donald Dillahunty is (972) 686-1880.
- Does Donald Dillahunty accept Medicare?
- Donald Dillahunty is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Dillahunty's NPI active?
- Yes — Donald Dillahunty's NPI (1255303020) is active in the NPPES registry as of the last update on 2011-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.