David Mayo, PA-C
NPI 1184213522 · Medical Physician Assistant · Washington, MO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Mayo, PA-C is a Medical Physician Assistant provider in Washington, MO (NPI 1184213522).
Provider details
- NPI number
- 1184213522
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 2022006233 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
87 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 Moderate Level of Medical Decision Making99284 | 59 | $97 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 28 | $141 |
Typical Medicare-allowed amounts for these services range $97–$141 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 45 | 45 |
| Cephalexin | 42 | 42 |
| Cyclobenzaprine Hcl | 29 | 28 |
| Prednisone | 27 | 27 |
| Doxycycline Hyclate | 14 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 | 13 |
| Ondansetronbrand: Ondansetron Odt |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-01-11
- Last updated
- 2022-02-22
- Certified
- 2022-02-22
Frequently asked questions
- What is David Mayo's NPI number?
- David Mayo's National Provider Identifier (NPI) is 1184213522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Mayo's specialty?
- David Mayo is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is David Mayo located?
- David Mayo's practice location on file with NPPES is 901 E 5th St, Washington, MO 63090-3127.
- What is David Mayo's phone number?
- The practice phone number listed in the NPPES registry for David Mayo is (636) 239-8000.
- Does David Mayo accept Medicare?
- David Mayo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Mayo's NPI active?
- Yes — David Mayo's NPI (1184213522) is active in the NPPES registry as of the last update on 2022-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.