Walter M. Maier, MD,MPH
Preventive Medicine/Occupational Environmental Medicine Physician · Lake Arrowhead, CA
Walter M. Maier, MD,MPH is a preventive medicine/occupational environmental medicine physician with a practice address in Lake Arrowhead, California, and NPI 1235175233, issued on Jun 20, 2006. Check the license (California G82114, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Walter M. Maier
- Credential
- MD,MPH
- Primary taxonomy
- Preventive Medicine/Occupational Environmental Medicine Physician 2083P0500X
- License number
- G82114 CA
Self-reported in NPPES; status is on the state search - Practice location
- 29099 Hospital Road, Lake Arrowhead, CA 92352
- Phone
- (909) 337-3661
- Enumerated
- Jun 20, 2006
- Record last updated
- Jun 16, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (909) 337-3570
- Medicare enrollment
- Enrolled (PECOS I20040401000539); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1993
- Entity
- Type 1 · individual
Also registered at 29099 Hospital Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Guy Giacopuzzi, DDSDentist1154541506
- Shelley Hasselman, NPPrimary Care Nurse Practitioner1003126129
- Jonathan Reed, PTPhysical Therapist1154986420
- Michelle Ricardo, MOTROccupational Therapist1427259795
- Lawrence Walker, MDOrthopaedic Surgery Physician1083619910
- Colton Young, PT, DPTPhysical Medicine & Rehabilitation Physician1730997503
Verify Walter M. Maier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G82114Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12.3 times the Medicare Part D claims of the average preventive medicine/occupational environmental medicine physician in 2024
7,729 Medicare Part D claims for 452 beneficiaries, against an average of 626 among the 189 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 322 claims were for opioids.
Most prescribed
- Levothyroxine Sodium325 claims
- Losartan Potassium291 claims
- Atorvastatin Calcium283 claims
- Amlodipine Besylate268 claims
- Hydrocodone-Acetaminophen208 claims
- Gabapentin200 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 12.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $69.87
4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 71 providers of this specialty with any payment received $2,513.26 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Preventive Medicine/Occupational Environmental Medicine Physician providers in California
There are 129 preventive medicine/occupational environmental medicine physician records in California.
Other preventive medicine/occupational environmental medicine physician records in California
- Diana Accinelli, M.D.Truckee, CA1154489904
- Ramana Adapa, MDTracy, CA1407959315
- Eduardo Aenlle, MDFallbrook, CA1497198212
- Shelley Arredondo, M.D., MPHHarbor City, CA1811186356
- Rahmat Balogun, D.O.San Francisco, CA1487929972
- Sheri Belafsky, M.D.Davis, CA1811011406
- Jorge Bernardez, M.D.Long Beach, CA1619097714
- Robert Blink, M.D.San Francisco, CA1346363793
- Max Blumberg, MDSan Francisco, CA1326507385
- Susan Bradshaw, MDLos Angeles, CA1104355783
Common questions
What is Walter M. Maier, MD,MPH's NPI number?
Walter M. Maier, MD,MPH's National Provider Identifier (NPI) is 1235175233, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Walter M. Maier, MD,MPH located?
The NPPES record lists a practice address at 29099 Hospital Road, Lake Arrowhead, CA, 92352. Phone: (909) 337-3661. Providers update this record themselves, so call before visiting.
How can I verify Walter M. Maier, MD,MPH's license?
NPPES lists California license number G82114, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Walter M. Maier, MD,MPH prescribe under Medicare Part D?
In 2024, Walter M. Maier, MD,MPH had 7,729 Medicare Part D claims for 452 beneficiaries; the average among preventive medicine/occupational environmental medicine physician prescribers was 626. Part D covers Medicare prescriptions only.
What is Walter M. Maier, MD,MPH's MIPS final score?
The 2023 MIPS final score is 12.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.