Dr. Cornelis Millard Elmes, MD
- Medicare services, 2024
- 1,511
- Medicare patients, 2024
- 239
- Part D claims, 2024
- 41
- Hospital affiliations
- 1
- Industry payments
- $5,384
- Practice address
- 1200 B Gale Wilson Blvd, Fairfield, CA 94533
- Practice phone
- Call (707) 646-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Elmes' 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. Cornelis Millard Elmes is an orthopaedic trauma physician in Fairfield, California
Dr. Elmes practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.
Dr. Elmes' NPI, 1245280460, was assigned on May 10, 2006. Dr. Elmes graduated from Feinberg School of Medicine in 1998. Dr. Elmes holds California license A86984.
- NPI
- 1245280460NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406809615
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 646-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cornelis Millard Elmes practices at NorthBay Medical Center in Fairfield, California
Dr. Elmes' primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.
- NorthBay Medical Center1200 B Gale Wilson Blvd, Fairfield, CA 94533 · Solano CountyPhone(707) 646-5000
Source: Dmand AI Affiliation Data
Dr. Cornelis Millard Elmes is affiliated with 3 sites of care and 2 medical groups
Dr. Elmes' primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. The medical group on file is NorthBay Medical Center. Dmand AI also links Dr. Elmes to 2 more group practices and clinics and 1 medical group, 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. Cornelis Millard Elmes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Elmes practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NorthBay Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across NorthBay Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Cornelis Millard Elmes is one of 116 orthopaedic trauma physicians in California
Orthopaedic trauma is Dr. Elmes' primary specialty in the NPI Registry, under taxonomy code 207XX0801X. Dr. Elmes is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Elmes' licenses on file in 6 states: California, Florida, Tennessee, West Virginia, Louisiana and New York.
Specialties and state licenses
- Orthopaedic trauma, CaliforniaPrimary
- Florida license
- Tennessee license
- West Virginia license
- Louisiana license
- New York license
Clinical focus
Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, broken or dislocated ankle/ or foot, bursitis, fluid in a joint, hip replacement, knee injury and leg, ankle or foot fracture among the conditions Dr. Elmes treats.
Orthopaedic trauma physicians near Dr. Elmes
Counts of orthopaedic trauma physicians 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. Cornelis Millard Elmes billed Medicare for 1,511 services in 2024
CMS data shows 1,511 Medicare services from Dr. Elmes across 14 procedure codes in 2024, for 239 Medicare patients. Medicare paid $67,069 for them.
Dr. Elmes' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2202024: 1,059381%
- Office and hospital visits
- 2023: 3492024: 3624%
- Surgery
- 2023: 1212024: 9026%
Where Dr. Elmes' Medicare services took place, 2024
- In an office1,42094%
- In a facility916%
Dr. Elmes compared with the California median for orthopaedic trauma physicians, 2024
- Dr. Elmes
- California median
- Medicare services
- 1,511vs 1649.2 times
- Medicare patients
- 239vs 12788% above
- Part D claims
- 14vs 2850% below
Medians across 107 orthopaedic trauma physicians in California with Dmand AI profiles that report each measure.
Dr. Elmes' 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. Elmes?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Elmes and other orthopaedic trauma physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cornelis Millard Elmes treated 239 Medicare patients in 2024, average age 74
CMS counts 239 Medicare patients who saw Dr. Elmes in 2024. The largest group is 65 to 74, with 87 patients. 75% of them have arthritis, and 75% have high blood pressure. 38% are also on Medicaid. Their average risk score is 1.74, 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. Elmes' median patient age at 60, with 57% women.
Dr. Elmes' Medicare patients by age, 2024
Dr. Elmes' Medicare patients by sex, 2024
- Women14862%
- Men9138%
Chronic conditions among Dr. Elmes' Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol72%
- Diabetes36%
- Osteoporosis36%
- Chronic kidney disease33%
- Mood disorders31%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Elmes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Cornelis Millard Elmes wrote 41 Medicare Part D claims in 2024
In 2024, Dr. Elmes wrote 41 Medicare Part D claims for 24 patients. 100% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $106 in total drug cost. In 2020, CMS named 24 claims across 2 drugs.
Dr. Elmes' most prescribed drugs by claims, 2021
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. Elmes' Part D claims, 2024
- Opioids29%12 of 41 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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 242021: 1442%
Drugs named by CMS: 1 in 2021, 2 in 2020.
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. Cornelis Millard Elmes offers telehealth to Medicare patients
Dr. Elmes accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Elmes as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Cornelis Millard Elmes received $5,384 in industry payments from 2016 to 2025
CMS Open Payments shows 54 general payments to Dr. Elmes from 19 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 54% of the total. Si-bone, Inc. paid the most, $3,991.
General payments to Dr. Elmes by program year, 2016 to 2025
General payments to Dr. Elmes by kind, 2016 to 2025
- Travel and lodging$2,90754%
- Food and beverage$2,47746%
Companies that paid Dr. Elmes 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. Cornelis Millard Elmes graduated from Feinberg School of Medicine
Dr. Elmes graduated from Feinberg School of Medicine in 1998. Dr. Elmes is a member of AAOS, AMA and CMA.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Cornelis Millard Elmes accepts plans from 16 insurance carriers
Dr. Elmes is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Elmes accepts, by number of carriers
- PPO10
- Medicare9
- HMO7
- POS6
- EPO5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Cornelis Millard Elmes'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Cornelis Millard Elmes
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. Cornelis Millard Elmes' NPI number?
Dr. Cornelis Millard Elmes' NPI number is 1245280460. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Cornelis Millard Elmes?
Dr. Cornelis Millard Elmes is an orthopaedic trauma physician in Fairfield, California. The primary specialty in the NPI Registry is Orthopaedic Trauma Physician (taxonomy code 207XX0801X).
Where does Dr. Cornelis Millard Elmes practice?
Dr. Elmes practices at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. Dr. Elmes' primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dmand AI also links Dr. Elmes to 2 group practices and clinics and 1 medical group.
What is Dr. Cornelis Millard Elmes' office phone number?
The practice phone on file for Dr. Elmes is (707) 646-5000.
What is Dr. Cornelis Millard Elmes' medical license number?
Dr. Elmes holds California license A86984, one of the licenses on file in 6 states.
Which states has Dr. Cornelis Millard Elmes been licensed in?
Dmand AI has state licenses on file for Dr. Elmes in California (2004 to 2026), Florida (2003 to 2025), Tennessee (2006 to 2014), West Virginia (2005 to 2012), Louisiana (2003 to 2006) and New York (2000 to 2006).
Which hospitals is Dr. Cornelis Millard Elmes affiliated with?
Dr. Elmes practices at NorthBay Medical Center in Fairfield, California.
What medical group is Dr. Cornelis Millard Elmes part of?
Dr. Elmes is linked to NorthBay Medical Center. Dmand AI links Dr. Elmes to 1 more medical group.
Does Dr. Cornelis Millard Elmes accept Medicare?
Yes. CMS data shows Dr. Elmes billed Medicare for 1,511 services in 2024, and Dr. Elmes accepts Medicare assignment.
Does Dr. Cornelis Millard Elmes offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Elmes as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Cornelis Millard Elmes see?
CMS counts 239 Medicare patients who saw Dr. Elmes in 2024, with an average age of 74.
Is Dr. Cornelis Millard Elmes board certified?
Yes. Dr. Elmes is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Cornelis Millard Elmes bill to Medicare?
In 2024, Dr. Elmes' most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99214) and injected or infused drug (J3301).
Where did Dr. Cornelis Millard Elmes go to medical school?
Dr. Elmes graduated from Feinberg School of Medicine in 1998.
What drugs does Dr. Cornelis Millard Elmes prescribe most?
In 2021 Medicare Part D data, Dr. Elmes' most prescribed drugs by claims were Naproxen.
Has Dr. Cornelis Millard Elmes received payments from drug or device companies?
CMS Open Payments shows $5,384 in general payments to Dr. Elmes from 19 companies from 2016 to 2025. The largest total came from Si-bone, Inc.
How long has Dr. Cornelis Millard Elmes been practicing?
Dr. Elmes graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Cornelis Millard Elmes accept?
Dr. Elmes is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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