Dr. Frederick E. Tonnos, DO
- Medicare services, 2024
- 268
- Medicare patients, 2024
- 256
- Part D claims, 2024
- 30
- MIPS score, 2024
- 68
- Hospital affiliations
- 3
- Practice address
- One Medical Plaza, Roseville, CA 95661
- Practice phone
- Call (916) 781-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tonnos' 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. Frederick E. Tonnos is an orthopedic surgeon in Roseville, California
Dr. Tonnos practices at Sutter Roseville Medical Center in Roseville, California, part of Sutter Health.
Dr. Tonnos' NPI, 1700900032, was assigned on March 19, 2007. Dr. Tonnos graduated from Michigan State University College of Human Medicine in 2005. Dr. Tonnos holds Michigan license 5101016566.
- NPI
- 1700900032NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567509623
- NPI enumeration date
- March 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 781-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Frederick E. Tonnos practices at 2 locations in Roseville, California
Dr. Tonnos' primary practice is Sutter Roseville Medical Center, at One Medical Plaza, Roseville, CA 95661 in Placer County. The practice phone is (916) 781-1000. Dr. Tonnos also practices at Sutter Roseville Medical Center, 1 Medical Plz, Roseville, CA 95661.
- Sutter Roseville Medical CenterPrimaryOne Medical Plaza, Roseville, CA 95661 · Placer CountyPhone(916) 781-1000
- Sutter Roseville Medical Center1 Medical Plz, Roseville, CA 95661 · Placer CountyPhone(800) 353-3369
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Frederick E. Tonnos is affiliated with 5 sites of care and 1 medical group
Dr. Tonnos' primary practice is Sutter Roseville Medical Center in Roseville, California, part of Sutter Health. Dr. Tonnos is also affiliated with Sutter Amador Hospital. The medical group on file is Orthopedic Trauma Surgeons of Northern California. Dmand AI also links Dr. Tonnos to 1 more hospital, 1 group practice or clinic and 1 home health agency, 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. Frederick E. Tonnos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tonnos practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Roseville Medical Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Frederick E. Tonnos is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Tonnos' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Tonnos is licensed in Michigan.
Specialties and state licenses
- Orthopaedic surgery, MichiganPrimary
Orthopedic surgeons near Dr. Tonnos
Counts of orthopedic surgeons 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. Frederick E. Tonnos billed Medicare for 268 services in 2024
CMS data shows 268 Medicare services from Dr. Tonnos across 6 procedure codes in 2024, for 256 Medicare patients. Medicare paid $94,100 for them.
Dr. Tonnos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1602024: 18918%
- Surgery
- 2023: 602024: 7932%
Where Dr. Tonnos' Medicare services took place, 2024
- In an office6524%
- In a facility20376%
Dr. Tonnos compared with the California median for orthopedic surgeons, 2024
- Dr. Tonnos
- California median
- Medicare services
- 268vs 68361% below
- Medicare patients
- 256vs 21519% above
- Part D claims
- 11vs 7084% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Tonnos' 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. Tonnos?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tonnos and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Frederick E. Tonnos treated 256 Medicare patients in 2024, average age 78
CMS counts 256 Medicare patients who saw Dr. Tonnos in 2024. The largest group is 75 to 84, with 93 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.88, 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. Tonnos' median patient age at 64, with 50% women.
Dr. Tonnos' Medicare patients by age, 2024
Dr. Tonnos' Medicare patients by sex, 2024
- Women15962%
- Men9738%
Chronic conditions among Dr. Tonnos' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Mood disorders49%
- Depression44%
- Chronic kidney disease41%
- Anxiety38%
- Osteoporosis35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tonnos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Frederick E. Tonnos wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Tonnos wrote 30 Medicare Part D claims for 18 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $61 in total drug cost. In 2022, CMS named 14 claims across 1 drug.
Dr. Tonnos' 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. Tonnos' Part D claims, 2024
- Opioids57%17 of 30 claims
- Antibiotics40%12 of 30 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 142024: 1121%
Drugs named by CMS: 1 in 2024, 1 in 2022.
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. Frederick E. Tonnos scored 68 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 68 out of 100 for Dr. Tonnos for performance year 2024, reported individually. Dr. Tonnos accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tonnos as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Tonnos' MIPS scores, performance year 2024
- 68of 100Final score
- 90of 100Quality
- 0of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Hip replacement: 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); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Frederick E. Tonnos received $15,562 in industry payments from 2016 to 2025
CMS Open Payments shows 47 general payments to Dr. Tonnos from 12 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 29% of the total. Synthes GmbH paid the most, $10,387.
General payments to Dr. Tonnos by program year, 2016 to 2025
General payments to Dr. Tonnos by kind, 2016 to 2025
- Travel and lodging$4,31529%
- Compensation for serving as faculty or as a speaker for a medical education program$3,00020%
- Food and beverage$2,72318%
- Accredited education speaker fees$2,50017%
- Other$2,27415%
Companies that paid Dr. Tonnos 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. Frederick E. Tonnos graduated from Michigan State University College of Human Medicine
Dr. Tonnos graduated from Michigan State University College of Human Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Frederick E. Tonnos'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Frederick E. Tonnos
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. Frederick E. Tonnos' NPI number?
Dr. Frederick E. Tonnos' NPI number is 1700900032. It was assigned on March 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Frederick E. Tonnos?
Dr. Frederick E. Tonnos is an orthopedic surgeon in Roseville, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Frederick E. Tonnos practice?
Dr. Tonnos practices at One Medical Plaza, Roseville, CA 95661. Dr. Tonnos also practices at 1 Medical Plz, Roseville, CA 95661. Dr. Tonnos' primary practice is Sutter Roseville Medical Center in Roseville, California, part of Sutter Health. Dmand AI also links Dr. Tonnos to 1 hospital, 1 group practice or clinic and 1 home health agency.
What is Dr. Frederick E. Tonnos' office phone number?
The practice phone on file for Dr. Tonnos is (916) 781-1000.
What is Dr. Frederick E. Tonnos' medical license number?
Dr. Tonnos holds Michigan license 5101016566.
Which hospitals is Dr. Frederick E. Tonnos affiliated with?
Dr. Tonnos practices at Sutter Roseville Medical Center in Roseville, California. Dr. Tonnos is also affiliated with Sutter Amador Hospital. Dmand AI links Dr. Tonnos to 1 more hospital.
What medical group is Dr. Frederick E. Tonnos part of?
Dr. Tonnos is linked to Orthopedic Trauma Surgeons of Northern California.
Does Dr. Frederick E. Tonnos accept Medicare?
Yes. CMS data shows Dr. Tonnos billed Medicare for 268 services in 2024, and Dr. Tonnos accepts Medicare assignment.
Does Dr. Frederick E. Tonnos offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tonnos as offering telehealth services.
What is Dr. Frederick E. Tonnos' MIPS score?
Dr. Tonnos' MIPS final score for performance year 2024 is 68 out of 100, reported individually.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Frederick E. Tonnos see?
CMS counts 256 Medicare patients who saw Dr. Tonnos in 2024, with an average age of 78.
What services does Dr. Frederick E. Tonnos bill to Medicare?
In 2024, Dr. Tonnos' most billed Medicare services were hospital inpatient care (99223), surgery: bones and joints (27245) and office visit, established patient (99213).
Where did Dr. Frederick E. Tonnos go to medical school?
Dr. Tonnos graduated from Michigan State University College of Human Medicine in 2005.
What drugs does Dr. Frederick E. Tonnos prescribe most?
In 2024 Medicare Part D data, Dr. Tonnos' most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Frederick E. Tonnos received payments from drug or device companies?
CMS Open Payments shows $15,562 in general payments to Dr. Tonnos from 12 companies from 2016 to 2025. The largest total came from Synthes GmbH.
How long has Dr. Frederick E. Tonnos been practicing?
Dr. Tonnos graduated from medical school in 2005, 21 years ago.
Selling to orthopaedic surgery practices?
See orthopedic surgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card