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- 29099 Hospital Road, Suite 112, Lake Arrowhead, CA 92352
About Dr. Maier
Walter M. Maier, MD, MPH practices preventive medicine — preventive/occupational in Lake Arrowhead, CA. Walter is a 1993 graduate of Loma Linda University School of Medicine. Walter is also listed as specializing in emergency medicine. Medicare claims data shows Walter provided 763 services to 294 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. The provider's National Provider Identifier (NPI) is 1235175233.
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
- (909) 337-3661
- Email not available
Practice Locations
29099 HOSPITAL ROAD SUITE 112
Lake Arrowhead, CA 92352
Conditions Commonly Evaluated or Treated
Within Preventive 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
Cancer risk
- Family History Of Cancer
Environmental health
- Asbestos Exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Workplace Chemical Exposure
- Heavy Metal Toxicity
General wellness
- Chronic Inflammation
Heart health
- Heart Disease Risk
- Coronary artery disease
- High blood pressure
- High cholesterol
- Poor Circulation
Kidney health
- Early Kidney Damage
Lifestyle & wellness
- Chronic Stress And Burnout
- Chronic fatigue
Longevity
- Accelerated Biological Aging
Occupational health
- Asbestos and mineral dust exposure
- Work-Related Back Strain
- Shift Work Sleep Problems
Sexual health
- STI Risk And Exposure
Substance use
- Vaping And Nicotine Addiction
- Opioid use disorder
Travel health
- Travel-related Infection Risk
Workplace health
- Work-related Injury
- Carpal tunnel
- Noise-Induced Hearing Damage
- Repetitive strain injury
Addiction & habits
- Alcohol use disorder
- Quitting smoking
Blood sugar
- Prediabetes
Bone & joint
Brain health
- Mild cognitive impairment
Digestive health
- Gut Health Issues
Hormones
- Hormone Imbalance
- Testosterone deficiency
- Underactive Thyroid
Liver & digestion
- Fatty liver disease
Metabolic health
Nutrition & deficiencies
- Iron-deficiency anemia
- Vitamin B12 deficiency
Nutrition & deficiency
- Food Intolerances And Sensitivities
- Vitamin D deficiency
Preventive care
- Balance Problems and Fall Risk
Sleep health
Weight & metabolism
- Insulin Resistance
- Metabolic syndrome
- Obesity
Procedures & services
Addiction & habits
- Alcohol Reduction Counseling
- Smoking cessation program
Cancer screening
- Cancer screening and prevention planning
- Screening colonoscopy
- Low-dose CT lung cancer screening
- Mammogram Referral
- Pap smear
- Prostate cancer blood test
- Skin cancer screening
Checkups & exams
- Annual Wellness Exam
- Executive Physical Exam
Environmental health
- Heavy Metal Blood Test
- Lead blood test
- Mold Toxicity Testing
Fitness & body composition
- VO2 Max Test
- DEXA Body Composition Scan
Immunizations
- Hepatitis Screening And Vaccine
- COVID-19 Booster
- Flu shot
- HPV vaccine
- Pneumonia shot
- Routine Vaccines
- Tetanus shot
Longevity
- Biological Age Test
Metabolic health
- Continuous Glucose Monitor Prescription
Preventive imaging
- Abdominal Aortic Aneurysm Screening
- Full Body MRI Scan
Screening & labs
- Diabetes and prediabetes screening
- Genetic Health Risk Testing
- Heart Calcium Score
- Hormone Panel Testing
- Bone Density Scan Referral
- Cholesterol screening
- Food Sensitivity Testing
- Tuberculosis Blood Test
Workplace health
- Ergonomic Workstation Evaluation
- Respirator Fit Testing
- Return To Work Clearance
- DOT Physical Exam
- Hearing Test For Work
- Pre-Employment Physical
- Workplace Drug Test
Heart health
Lab tests
- Routine blood work
- STI Screening Panel
Lifestyle & wellness
- Exercise Prescription
- Medical nutrition therapy
- Mindfulness-based stress reduction
Occupational health
- Return To Work Evaluation
Sexual health
- PrEP prescription
Travel health
- Travel Vaccines And Consult
Weight & metabolism
- Weight Loss Injections and Medication
Procedures Most Often Billed to Medicare
763 services · 294 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
21 | Too few peers to compare |
| Removal of impacted ear wax | Procedure | 69210 |
11 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
546 | More than most peers in Preventive Medicine —… |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
64 | Too few peers to compare |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
57 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
34 | Too few peers to compare |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
30 | Too few peers to compare |
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.
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.
Class of 1993 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Maier?
Dr. Maier is a preventive medicine in Lake Arrowhead, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Preventive Medicine — Preventive/Occupational”.
NPI registry
What is Dr. Maier's address?
Dr. Maier is listed at 29099 Hospital Road Suite 112, Lake Arrowhead, CA 92352. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Maier?
The number on file is (909) 337-3661. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Maier?
Dr. Maier's National Provider Identifier is 1235175233. 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
Where did Dr. Maier train?
Dr. Maier attended Loma Linda University School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Maier have?
Dr. Maier has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Maier perform?
According to Medicare billing data, Dr. Maier performs procedures including destruction of precancer skin growth, 1 growth and removal of impacted ear wax, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Maier's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maier. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.