Dr. Nathan Ross Ehmer, DO
- Medicare services, 2024
- 630
- Medicare patients, 2024
- 338
- Part D claims, 2024
- 32
- Hospital affiliations
- 1
- Industry payments
- $6,321
- Practice address
- 2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001
- Practice phone
- Call (530) 225-6102
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ehmer's 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. Nathan Ross Ehmer is an orthopaedic trauma physician in Redding, California
Dr. Ehmer practices at Mercy Medical Center Redding in Redding, California, part of CommonSpirit Health.
Dr. Ehmer's NPI, 1871767673, was assigned on April 14, 2008. Dr. Ehmer graduated from Arizona College of Osteopathic Medicine - Glendale in 2003. Dr. Ehmer holds California license 20A 10366.
- NPI
- 1871767673NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628127511
- NPI enumeration date
- April 14, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 225-6102
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan Ross Ehmer practices at Mercy Medical Center Redding in Redding, California
Dr. Ehmer's primary practice is Mercy Medical Center Redding, at 2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001 in Shasta County. The practice phone is (530) 225-6102.
- Mercy Medical Center Redding2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001 · Shasta CountyPhone(530) 225-6102
Source: Dmand AI Affiliation Data
Dr. Nathan Ross Ehmer is affiliated with 3 sites of care and 2 medical groups
Dr. Ehmer's primary practice is Mercy Medical Center Redding in Redding, California, part of CommonSpirit Health. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Ehmer 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. Nathan Ross Ehmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ehmer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Center Redding | Available with a free account |
| +2 more sites and 1 medical group | 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 CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nathan Ross Ehmer is one of 116 orthopaedic trauma physicians in California
Orthopaedic trauma is Dr. Ehmer's primary specialty in the NPI Registry, under taxonomy code 207XX0801X. Dr. Ehmer is board certified in 2016 - 2021 by the AK State License. Dr. Ehmer is licensed in California.
Specialties and state licenses
- Orthopaedic trauma, CaliforniaPrimary
Clinical focus
Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, broken or dislocated ankle/ or foot, bursitis, carpal tunnel syndrome, fluid in a joint, hip replacement and joint pain among the conditions Dr. Ehmer treats.
Orthopaedic trauma physicians near Dr. Ehmer
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. Nathan Ross Ehmer billed Medicare for 630 services in 2024
CMS data shows 630 Medicare services from Dr. Ehmer across 13 procedure codes in 2024, for 338 Medicare patients. Medicare paid $108,203 for them.
Dr. Ehmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5002024: 45010%
- Imaging
- 2023: 3622024: 11269%
- Surgery
- 2023: 902024: 6824%
Where Dr. Ehmer's Medicare services took place, 2024
- In an office38160%
- In a facility24940%
Dr. Ehmer compared with the California median for orthopaedic trauma physicians, 2024
- Dr. Ehmer
- California median
- Medicare services
- 630vs 1643.8 times
- Medicare patients
- 338vs 1272.7 times
- Part D claims
- 29vs 28Close to median
Medians across 107 orthopaedic trauma physicians in California with Dmand AI profiles that report each measure.
Dr. Ehmer's 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. Ehmer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ehmer 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. Nathan Ross Ehmer treated 338 Medicare patients in 2024, average age 79
CMS counts 338 Medicare patients who saw Dr. Ehmer in 2024. The largest group is 75 to 84, with 141 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ehmer's median patient age at 66, with 59% women.
Dr. Ehmer's Medicare patients by age, 2024
Dr. Ehmer's Medicare patients by sex, 2024
- Women22065%
- Men11835%
Chronic conditions among Dr. Ehmer's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis63%
- Osteoporosis34%
- Mood disorders33%
- Anxiety32%
- Depression31%
- Atrial fibrillation24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ehmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan Ross Ehmer wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Ehmer wrote 32 Medicare Part D claims for 30 patients. 100% of them were for generic drugs. CMS names the drug for 29 of them, across 2 drugs with 11 or more claims each, at $209 in total drug cost. In 2023, CMS named 29 claims across 2 drugs.
Dr. Ehmer's 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. Ehmer's Part D claims, 2024
- Opioids94%30 of 32 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: 292024: 29No change
Drugs named by CMS: 2 in 2024, 2 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. Nathan Ross Ehmer scored 0 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 0 out of 100 for Dr. Ehmer for performance year 2024, reported individually. Dr. Ehmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ehmer's MIPS scores, performance year 2024
- 0of 100Final score
- 0of 100Quality
- 0of 100Promoting Interoperability
- 0of 100Improvement Activities
- 0of 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)
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
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); 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. Nathan Ross Ehmer received $6,321 in industry payments from 2016 to 2025
CMS Open Payments shows 59 general payments to Dr. Ehmer from 14 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 43% of the total. Medical Device Business Services, Inc. paid the most, $2,700.
General payments to Dr. Ehmer by program year, 2016 to 2025
General payments to Dr. Ehmer by kind, 2016 to 2025
- Consulting fees$2,70043%
- Food and beverage$2,31637%
- Travel and lodging$1,30521%
Companies that paid Dr. Ehmer 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. Nathan Ross Ehmer has 1 award and honors on record
Dmand AI lists 1 award for Dr. Ehmer, most recently CMS Stage 1 EHR in 2012.
Awards and honors for Dr. Ehmer
- 2012
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Nathan Ross Ehmer graduated from Arizona College of Osteopathic Medicine - Glendale
Dr. Ehmer graduated from Arizona College of Osteopathic Medicine - Glendale in 2003. Dr. Ehmer is a member of AOA.
- Medical school
- Board certified in 2016 - 2021
- Board certified in orthopedic surgery
- Board certified in 2008 - 2025
- Board certified in 2003 - 2010
Source: Dmand AI Professional Profile Data
Dr. Nathan Ross Ehmer accepts plans from 10 insurance carriers
Dr. Ehmer is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- AK State Medicaid
- +2 more carriersWith a free account
Plan types Dr. Ehmer accepts, by number of carriers
- Medicare8
- PPO7
- HMO4
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nathan Ross Ehmer'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)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) |
| 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. Nathan Ross Ehmer
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. Nathan Ross Ehmer's NPI number?
Dr. Nathan Ross Ehmer's NPI number is 1871767673. It was assigned on April 14, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan Ross Ehmer?
Dr. Nathan Ross Ehmer is an orthopaedic trauma physician in Redding, California. The primary specialty in the NPI Registry is Orthopaedic Trauma Physician (taxonomy code 207XX0801X).
Where does Dr. Nathan Ross Ehmer practice?
Dr. Ehmer practices at 2175 Rosaline Ave, Clairmont Hgts, Redding, CA 96001. Dr. Ehmer's primary practice is Mercy Medical Center Redding in Redding, California, part of CommonSpirit Health. Dmand AI also links Dr. Ehmer to 2 group practices and clinics and 1 medical group.
What is Dr. Nathan Ross Ehmer's office phone number?
The practice phone on file for Dr. Ehmer is (530) 225-6102.
What is Dr. Nathan Ross Ehmer's medical license number?
Dr. Ehmer holds California license 20A 10366.
Which hospitals is Dr. Nathan Ross Ehmer affiliated with?
Dr. Ehmer practices at Mercy Medical Center Redding in Redding, California.
What medical group is Dr. Nathan Ross Ehmer part of?
Dr. Ehmer is linked to Mercy Medical Group. Dmand AI links Dr. Ehmer to 1 more medical group.
Does Dr. Nathan Ross Ehmer accept Medicare?
Yes. CMS data shows Dr. Ehmer billed Medicare for 630 services in 2024, and Dr. Ehmer accepts Medicare assignment.
What is Dr. Nathan Ross Ehmer's MIPS score?
Dr. Ehmer's MIPS final score for performance year 2024 is 0 out of 100, reported individually.
How many Medicare patients does Dr. Nathan Ross Ehmer see?
CMS counts 338 Medicare patients who saw Dr. Ehmer in 2024, with an average age of 79.
Show 7 more questionsShow fewer questions
Is Dr. Nathan Ross Ehmer board certified?
Yes. Dr. Ehmer is board certified in 2016 - 2021 by the AK State License.
What services does Dr. Nathan Ross Ehmer bill to Medicare?
In 2024, Dr. Ehmer's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99223) and office visit, new patient (99203).
Where did Dr. Nathan Ross Ehmer go to medical school?
Dr. Ehmer graduated from Arizona College of Osteopathic Medicine - Glendale in 2003.
What drugs does Dr. Nathan Ross Ehmer prescribe most?
In 2024 Medicare Part D data, Dr. Ehmer's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Tramadol HCl.
Has Dr. Nathan Ross Ehmer received payments from drug or device companies?
CMS Open Payments shows $6,321 in general payments to Dr. Ehmer from 14 companies from 2016 to 2025. The largest total came from Medical Device Business Services, Inc.
How long has Dr. Nathan Ross Ehmer been practicing?
Dr. Ehmer graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Nathan Ross Ehmer accept?
Dr. Ehmer is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
Selling to orthopaedic trauma practices?
See orthopaedic trauma physicians 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