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Edit this profileAt a glance
- 901 E 5Th St, Washington, MO 63090
About David Mayo
David J. Mayo, PA-C is a physician assistant — medical practicing in Washington, MO. According to Medicare claims data, David cared for 84 Medicare patients across 87 services. The services billed most often include emergency department visit with moderate level of medical decision making and emergency department visit with high level of medical decision making. This provider record is associated with NPI 1184213522.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (636) 239-8000
- Email not available
Practice Locations
901 E 5TH ST
Washington, MO 63090
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Digestive
Most searched conditions
Allergies
Blood
Bone and joint
Digestive health
Ear, Nose & Throat
Endocrine
Eye Care
Foot and ankle
General Health
Hair and scalp
Headache and brain
Heart & Circulation
Hormones
Infections
Injury
Men's Health
Mental Health
Metabolic
Nerve conditions
Neurology
Pain
Respiratory
Sexual Health
Skin
Skin cancer
Skin conditions
Sleep
Women's Health
Procedures & services
Diagnostic Tests
- COVID-19 Rapid Test
- Rapid Flu Swab
- Urine Pregnancy Test
- Mono Rapid Test
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
Exams
- School and camp physical
- DOT Physical Exam
- Medicare annual wellness visit
- Pre-Employment Physical
Most searched procedures
Allergies
- Allergy Testing and Shots
Counseling
Dermatology
Ear, Nose & Throat
- Earwax removal
- Removal of Foreign Object from Ear or Nose
Evaluations
General Care
- Prescription Refill Visit
- Wound Care and Dressing Change
Heart & Circulation
- EKG
Heart health
- Heart monitor
Hormones
Injections
Injury Care
- Burn Treatment
- Splinting and temporary casting
Lab tests
Mental Health
Metabolic
- Weight Loss Medication Consultation
Minor surgery
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
Prevention
Respiratory
- Asthma Action Plan Consultation
- Nebulizer Breathing Treatment
Screening
- Blood Pressure Check and Monitoring
- STI and STD Screening
Skin procedures
- Mole Check
- Mole removal
- Wart Removal
Treatments
- IV hydration for cancer patients
Virtual care
Women's Health
Women's health
- Pap smear
Procedures Most Often Billed to Medicare
87 services · 84 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
59 | More often than most peers in Physician Assistant — Medical |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
28 | As often as other peers in Physician Assistant — Medical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What kind of doctor is David J. Mayo?
David J. Mayo is a physician assistant in Washington, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
What is David J. Mayo's address?
David J. Mayo is listed at 901 E 5Th St, Washington, MO 63090. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with David J. Mayo?
The number on file is (636) 239-8000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is David J. Mayo's NPI number?
David J. Mayo's National Provider Identifier is 1184213522. 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
How long has David J. Mayo been practicing?
David J. Mayo has 5+ years experience. Registered with an NPI since 2021. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does David J. Mayo perform?
According to Medicare billing data, David J. Mayo the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has David J. Mayo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by David J. Mayo. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.