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- 20172 E Stagecoach Trl, Mayer, AZ 86333
About Dr. Gilliam
Based in Mayer, AZ, John S. Gilliam, MD is listed in the NPI registry under family medicine. John graduated from Oral Roberts University School of Medicine in 1986. John is also listed as specializing in emergency medicine. Medicare claims data shows John provided 1,597 services to 904 patients. The services billed most often include follow-up psychiatric collaborative care management, subsequent calendar month, first 60 minutes, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. NPI 1003877085 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
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
- (800) 288-6206
- Email not available
Practice Locations
20172 E STAGECOACH TRL
Mayer, AZ 86333
Conditions Commonly Evaluated or Treated
Within Family Medicine 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
Bariatrics
- Severe Obesity
Cancer Prevention
- Family cancer risk
Cancer risk
- Family History Of Cancer
Digestive
- Stomach Bug and Food Poisoning
- Acid reflux
- IBS
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
- Chronic Inflammation
Heart health
- Heart Disease Risk
Infectious Disease
- Animal bite and rabies exposure
- Hepatitis B and C exposure
Infectious disease
- Measles and mumps exposure
- Traveler's diarrhea
Kidney health
- Early Kidney Damage
Lifestyle & wellness
- Chronic Stress And Burnout
Lifestyle health
- Unhealthy diet and nutrient deficiency
Longevity
- Accelerated Biological Aging
Metabolic & Lifestyle
- Lack of physical activity
Occupational health
- Asbestos and mineral dust exposure
- Work-Related Back Strain
Occupational Health
- Noise-induced hearing loss risk
Rashes & allergy
- Poison Ivy
Sexual Health
- HIV risk and exposure
Sexual health
- STI Risk And Exposure
Substance use
- Vaping And Nicotine Addiction
Travel health
- Altitude sickness
- Travel-related Infection Risk
Wellness and energy
- Chronic fatigue
Workplace health
- Work-related Injury
Wounds & skin
- Severe skin tears
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
- High blood pressure
- High cholesterol
Genitourinary and reproductive
- Erectile dysfunction
- Heavy periods
Musculoskeletal and pain
- Gout
- Heel pain
Neurologic and behavioral
- ADHD
- Anxiety
- Depression
- Insomnia
- Migraines
Respiratory and infectious
- Acute bronchitis
- Asthma
- Sinus infection
Skin
- Acne
- Eczema
Common childhood and ear conditions
- Ear infection
- Pink eye
Pain & Joints
- Arthritis
- Back pain
Procedures & services
Addiction & habits
- Alcohol Reduction Counseling
Bladder & bowel
- Skin barrier and rash care for incontinence
Breathing
- Nebulizer Breathing Treatment Training
Cancer Screening
- Hereditary cancer risk assessment
Cancer screening
- Lung cancer screening consult
Checkups & exams
- Annual Wellness Exam
- Executive Physical Exam
Chronic illness
- Medication list review
- Post-hospital follow-up visit
Diagnostic testing
- Rapid flu test
Diagnostic Tests
- COVID-19 Rapid Test
- COVID-19 testing
- Rapid Flu Swab
- Rapid Strep and Flu Swabs
- Urine Pregnancy Test
- Urine Drug Screen
Diagnostics & screening
- TB Skin Test
Environmental health
- Heavy Metal Blood Test
- Lead blood test
- Mold Toxicity Testing
Exams
- School and camp physical
Exams & Screenings
- Camp and School Physical
- Pre-Op Clearance Exam
Fitness & body composition
- VO2 Max Test
Foot and Leg Pain
- Toenail Fungus Treatment
Heart & Circulation
- Blood Pressure Check
Heart & circulation
- Blood pressure check and medication review
Immunizations
- Hepatitis Screening And Vaccine
Infection & Microbiology Tests
- Colon cancer screening consult
- STI and STD Screening
- H. Pylori Breath Test
Lifestyle & Prevention
- Exercise prescription and counseling
- Medical weight loss counseling
Longevity
- Biological Age Test
Lower endoscopy
- Screening colonoscopy
Metabolic health
- Continuous Glucose Monitor Prescription
Minor Procedures
- Burn and Wound Care
- Ingrown toenail removal
- Suture removal
Occupational health
- Breathing test for work
- Food handler medical clearance
- Workplace breath alcohol test
Occupational Health
- Needlestick exposure evaluation
- Respirator clearance exam and fit testing
- DOT Physical
Office procedures
- Minor laceration repair
- Removal of a minor skin lesion
- Superficial foreign-body removal
- Earwax removal
- Incision and drainage of an abscess
Post-Op Care
- Surgical Staple Removal
Preventive and evaluation
- Preoperative medical clearance
Preventive Care
- Chronic Illness Checkup
- Travel Vaccines And Consult
- Routine Vaccines
Preventive imaging
- Abdominal Aortic Aneurysm Screening
- Full Body MRI Scan
Preventive interventions
- Vaccinations and immunizations
- Weight-management counseling
- Birth control counseling
- Smoking cessation counseling
Preventive screening
- Fall risk screening
Routine Blood Tests
- Hemoglobin A1c Test
Screening & labs
- Genetic Health Risk Testing
- Heart Calcium Score
- Hormone Panel Testing
Screening and diagnostic testing
- Cancer screening and prevention planning
Screening and testing
- Blood pressure screening
- Diabetes and prediabetes screening
- Point-of-care laboratory testing
- Cholesterol screening
- Depression screening
- EKG
Skin Procedures
- Cyst Removal
- Precancerous Sun Spot Freezing
- Skin Tag Removal
- Wart Removal
Sleep Health
- At-Home Sleep Study Order
Travel Health
- Travel vaccines and health advice
Travel medicine
- Altitude sickness prevention pills
- Typhoid vaccine
Urgent Care Procedures
- Stitches and Laceration Repair
Wellness
- Body Composition Analysis
Wellness & Screening
- Heart disease risk assessment
Wellness & Weight
- Weight Management Consult
Women's Health
- Hormone Replacement Therapy Consultation
Workplace health
- Ergonomic Workstation Evaluation
- Respirator Fit Testing
- Return To Work Clearance
Wound care
- Suture and Staple Removal
Wounds & skin
- Bedsore staging and treatment
- Wound dressing and care
Sleep
- At-home sleep test
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Injections
- Immunotherapy
- Vitamin B12 Injections
Lungs & Breathing
- Pulmonary function test
Pain Management
- Joint injections
Respiratory
- Breathing Treatment
Senior Care
- Cognitive Assessment
Sexual & Reproductive Health
- STD Swabs and Screening
Procedures Most Often Billed to Medicare
1,597 services · 904 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
58 | As often as other peers in Family Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
43 | As often as other peers in Family Medicine |
| Psychiatric diagnostic evaluation | Treatment | 90791 |
26 | Too few peers to compare |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
20 | As often as other peers in Family Medicine |
| Evaluation of use of breathing device | Treatment | 94664 |
14 | Less often than most peers in Family Medicine |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
13 | Less often than most peers in Family Medicine |
| Follow-up psychiatric collaborative care management, subsequent calendar month, first 60 minutes | Office visit | 99493 |
597 | More than most peers in Family Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
420 | More often than most peers in Family Medicine |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
118 | More than most peers in Family Medicine |
| Initial psychiatric collaborative care management, first calendar month, first 70 minutes | Office visit | 99492 |
52 | More than most peers in Family Medicine |
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.
Other family doctors at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 4 groups
Trained at Oral Roberts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Oral Roberts University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What is Dr. Gilliam's specialty?
Dr. Gilliam is a family doctor in Mayer, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where can I find Dr. Gilliam?
Dr. Gilliam is listed at 20172 E Stagecoach Trl, Mayer, AZ 86333. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Gilliam?
The number on file is (800) 288-6206. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Gilliam?
Dr. Gilliam's National Provider Identifier is 1003877085. 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
What is Dr. Gilliam's medical education?
Dr. Gilliam attended Oral Roberts University School of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gilliam have?
Dr. Gilliam has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Gilliam known for?
According to Medicare billing data, Dr. Gilliam performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as injection of drug or substance under skin or into muscle and psychiatric diagnostic evaluation, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gilliam's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gilliam. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.