John Richard Mendius, M.D.
Neurology Physician · Santa Rosa, CA
John Richard Mendius, M.D. is a neurology physician with a practice address in Santa Rosa, California, and NPI 1295765881, issued on Jul 3, 2006. Check the license (California G40321, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Richard Mendius
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G40321 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3883 Airway Drive, Santa Rosa, CA 95403
- Phone
- (707) 521-7788
- Enumerated
- Jul 3, 2006
- Record last updated
- Nov 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (707) 521-1309
- Medicaid ID
- 00G403210 CA
- Medicare enrollment
- Enrolled (PECOS I20081204000971); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1977
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Verify John Richard Mendius in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G40321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average neurology physician in 2024
4,321 Medicare Part D claims for 630 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 72 claims were for opioids.
Most prescribed
- Donepezil Hcl448 claims
- Levetiracetam268 claims
- Gabapentin237 claims
- Carbidopa-Levodopa176 claims
- Ropinirole Hcl147 claims
- Meloxicam129 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.
Industry payments in 2024: $117.99
1 payment: food and beverage; the largest payer was SK Life Science, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Richard Mendius among 2,339 neurology physician records in California
John Richard Mendius, M.D. is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1977 · median 2006 among the 1,628 with a school on file
- Record last updated2013 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Santa Rosa → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- John Cassidy, MDSanta Rosa, CA 954031053495036
- Max Duncan, D.O.Santa Rosa, CA 954031114066974
- Mahsa Eskian, MDSanta Rosa, CA 954031437893823
- Jet Ho, MDSanta Rosa, CA 954031194894394
- Sea Jin Kim, M.D.Santa Rosa, CA 954031649471202
- Jerome Chin, M.D. PH.D.Santa Rosa, CA 954041992837496
- Sidney Kurn, M.D.Santa Rosa, CA 954041588793962
- Stella Lai, MDSanta Rosa, CA 954051588906663
Common questions
What is John Richard Mendius, M.D.'s NPI number?
John Richard Mendius, M.D.'s National Provider Identifier (NPI) is 1295765881, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Richard Mendius, M.D. located?
The NPPES record lists a practice address at 3883 Airway Drive, Santa Rosa, CA, 95403. Phone: (707) 521-7788. Providers update this record themselves, so call before visiting.
How can I verify John Richard Mendius, M.D.'s license?
NPPES lists California license number G40321, 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 John Richard Mendius, M.D. prescribe under Medicare Part D?
In 2024, John Richard Mendius, M.D. had 4,321 Medicare Part D claims for 630 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
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.