Donald Gayda, D.O.
NPI 1669423786 · Emergency Medicine Physician · Fairfield, OH
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Gayda, D.O. is a Emergency Medicine Physician provider in Fairfield, OH (NPI 1669423786).
Provider details
- NPI number
- 1669423786
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 34004731G (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
261 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 131 | $160 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 90 | $111 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 23 | $65 |
| Critical Care, First 30-74 Minutes99291 | 17 | $195 |
Typical Medicare-allowed amounts for these services range $65–$195 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 61 | 57 |
| Cephalexin | 51 | 51 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 38 | 38 |
| Ondansetronbrand: Ondansetron Odt | 33 | 31 |
| Doxycycline Hyclate | 30 | 30 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 22 | 22 |
| Cyclobenzaprine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-13
- Last updated
- 2015-05-08
Frequently asked questions
- What is Donald Gayda's NPI number?
- Donald Gayda's National Provider Identifier (NPI) is 1669423786, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Gayda's specialty?
- Donald Gayda is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Gayda located?
- Donald Gayda's practice location on file with NPPES is 3000 Mack Rd, Fairfield, OH 45014-5335.
- What is Donald Gayda's phone number?
- The practice phone number listed in the NPPES registry for Donald Gayda is (513) 870-7001.
- Does Donald Gayda accept Medicare?
- Donald Gayda is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Gayda's NPI active?
- Yes — Donald Gayda's NPI (1669423786) is active in the NPPES registry as of the last update on 2015-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.