Dr. John Richard Mendius, MD
- Medicare services, 2024
- 26,393
- Medicare patients, 2024
- 721
- Part D claims, 2024
- 4,321
- Hospital affiliations
- 5
- Industry payments
- $44,494
- Practice address
- 34 Mark West Springs Road, Suite 100, Santa Rosa, CA 95403
- Practice phone
- Call (707) 541-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Santa Rosa Surgery and Endoscopy Center
Surgery Center - Medicare-Certified · Santa Rosa, California
Find Dr. Mendius' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Richard Mendius is a neurologist in Santa Rosa, California
Dr. Mendius practices at Santa Rosa Surgery and Endoscopy Center in Santa Rosa, California.
Dr. Mendius' NPI, 1295765881, was assigned on July 3, 2006. Dr. Mendius graduated from David Geffen School of Medicine at UCLA in 1977. Dr. Mendius holds California license G40321.
- NPI
- 1295765881NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163583477
- NPI enumeration date
- July 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 541-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Richard Mendius practices at Santa Rosa Surgery and Endoscopy Center in Santa Rosa, California
Dr. Mendius' primary practice is Santa Rosa Surgery and Endoscopy Center, at 34 Mark West Springs Road, Suite 100, Santa Rosa, CA 95403. The practice phone is (707) 541-3500.
- Santa Rosa Surgery and Endoscopy Center34 Mark West Springs Road, Suite 100, Santa Rosa, CA 95403Phone(707) 541-3500
Source: Dmand AI Affiliation Data
Dr. John Richard Mendius is affiliated with 8 sites of care and 1 medical group
Dr. Mendius' primary practice is Santa Rosa Surgery and Endoscopy Center in Santa Rosa, California. Dr. Mendius is also affiliated with Providence Santa Rosa Memorial Hospital. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Mendius to 4 more hospitals, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Richard Mendius' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mendius practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Rosa Surgery and Endoscopy Center | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Richard Mendius is one of 2,207 neurologists in California
Neurology is Dr. Mendius' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Mendius is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Mendius' licenses on file in 2 states: California and Oregon.
Specialties and state licenses
- Neurology, CaliforniaPrimary
- Oregon license
Clinical focus
Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, carpal tunnel syndrome, cerebrovascular disease, encephalopathy, epilepsy, essential tremor and fibromyalgia and chronic pain among the conditions Dr. Mendius treats.
Neurologists near Dr. Mendius
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Richard Mendius billed Medicare for 26,393 services in 2024
CMS data shows 26,393 Medicare services from Dr. Mendius across 17 procedure codes in 2024, for 721 Medicare patients. Medicare paid $227,387 for them.
Dr. Mendius' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 24,2002024: 24,7952%
- Office and hospital visits
- 2023: 1,3722024: 1,05623%
- Other services
- 2023: 02024: 400
- Surgery
- 2023: 892024: 881%
- Tests and treatments
- 2023: 662024: 5418%
Where Dr. Mendius' Medicare services took place, 2024
- In an office26,14899%
- In a facility2451%
Dr. Mendius compared with the California median for neurologists, 2024
- Dr. Mendius
- California median
- Medicare services
- 26,393vs 40465.3 times
- Medicare patients
- 721vs 1903.8 times
- Part D claims
- 3,984vs 32412.3 times
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Mendius' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mendius?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mendius and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Richard Mendius treated 721 Medicare patients in 2024, average age 73
CMS counts 721 Medicare patients who saw Dr. Mendius in 2024. The largest group is 65 to 74, with 273 patients. 72% of them have high cholesterol, and 62% have high blood pressure. 27% are also on Medicaid. Their average risk score is 1.58, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mendius' median patient age at 69, with 61% women.
Dr. Mendius' Medicare patients by age, 2024
Dr. Mendius' Medicare patients by sex, 2024
- Women44061%
- Men28139%
Chronic conditions among Dr. Mendius' Medicare patients, 2024
- High cholesterol72%
- High blood pressure62%
- Arthritis46%
- Mood disorders38%
- Anxiety37%
- Depression35%
- Ischemic heart disease27%
- Stroke or TIA27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mendius' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women61%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Richard Mendius wrote 4,321 Medicare Part D claims in 2024
In 2024, Dr. Mendius wrote 4,321 Medicare Part D claims for 630 patients. 93% of them were for generic drugs. CMS names the drug for 3,984 of them, across 78 drugs with 11 or more claims each, at $440,157 in total drug cost. In 2023, CMS named 3,984 claims across 76 drugs.
Dr. Mendius' Part D claims by kind of drug, 2024
- Generic4,005 claims93%
- Brand-name299 claims7%
- Other17 claims0%
Dr. Mendius' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Mendius' Part D claims, 2024
- Opioids2%72 of 4,321 claims
- Antipsychotics, patients 65 and over3%110 of 4,321 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,9842024: 3,984No change
Drugs named by CMS: 78 in 2024, 76 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. John Richard Mendius offers telehealth to Medicare patients
Dr. Mendius accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mendius as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Richard Mendius received $44,494 in industry payments from 2016 to 2025
CMS Open Payments shows 71 general payments to Dr. Mendius from 12 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 95% of the total. Sanofi and Genzyme US Companies paid the most, $43,918.
General payments to Dr. Mendius by program year, 2016 to 2025
General payments to Dr. Mendius by kind, 2016 to 2025
- Speaker and faculty fees$42,38895%
- Food and beverage$1,4193%
- Travel and lodging$6091%
- Education$780%
Companies that paid Dr. Mendius the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Richard Mendius has 1 award and honors on record
Dmand AI lists 1 award for Dr. Mendius, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Mendius
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. John Richard Mendius graduated from David Geffen School of Medicine at UCLA
Dr. Mendius graduated from David Geffen School of Medicine at UCLA in 1977.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. John Richard Mendius accepts plans from 13 insurance carriers
Dr. Mendius is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Mendius accepts, by number of carriers
- PPO9
- HMO6
- Medicare6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. John Richard Mendius's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Richard Mendius
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Richard Mendius' NPI number?
Dr. John Richard Mendius' NPI number is 1295765881. It was assigned on July 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Richard Mendius?
Dr. John Richard Mendius is a neurologist in Santa Rosa, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. John Richard Mendius practice?
Dr. Mendius practices at 34 Mark West Springs Road, Suite 100, Santa Rosa, CA 95403. Dr. Mendius' primary practice is Santa Rosa Surgery and Endoscopy Center in Santa Rosa, California. Dmand AI also links Dr. Mendius to 4 hospitals, 1 physician office and 1 group practice or clinic.
What is Dr. John Richard Mendius' office phone number?
The practice phone on file for Dr. Mendius is (707) 541-3500.
What is Dr. John Richard Mendius' medical license number?
Dr. Mendius holds California license G40321, one of the licenses on file in 2 states.
Which states has Dr. John Richard Mendius been licensed in?
Dmand AI has state licenses on file for Dr. Mendius in California (1979 to 2027) and Oregon (since 1991).
Which hospitals is Dr. John Richard Mendius affiliated with?
Dr. Mendius is affiliated with Providence Santa Rosa Memorial Hospital. Dmand AI links Dr. Mendius to 4 more hospitals.
What medical group is Dr. John Richard Mendius part of?
Dr. Mendius is linked to Palo Alto Foundation Medical Group.
Does Dr. John Richard Mendius accept Medicare?
Yes. CMS data shows Dr. Mendius billed Medicare for 26,393 services in 2024, and Dr. Mendius accepts Medicare assignment.
Does Dr. John Richard Mendius offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mendius as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. John Richard Mendius see?
CMS counts 721 Medicare patients who saw Dr. Mendius in 2024, with an average age of 73.
Is Dr. John Richard Mendius board certified?
Yes. Dr. Mendius is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. John Richard Mendius bill to Medicare?
In 2024, Dr. Mendius' most billed Medicare services were injected or infused drug (J0585), office visit, established patient (99213) and medicare service (G2211).
Where did Dr. John Richard Mendius go to medical school?
Dr. Mendius graduated from David Geffen School of Medicine at UCLA in 1977.
What drugs does Dr. John Richard Mendius prescribe most?
In 2024 Medicare Part D data, Dr. Mendius' most prescribed drugs by claims were Donepezil HCl, Levetiracetam and Gabapentin.
Has Dr. John Richard Mendius received payments from drug or device companies?
CMS Open Payments shows $44,494 in general payments to Dr. Mendius from 12 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. John Richard Mendius been practicing?
Dr. Mendius graduated from medical school in 1977, 49 years ago.
What insurance does Dr. John Richard Mendius accept?
Dr. Mendius is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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