Dr. Nathan T. Stillwagon, MD
- Medicare services, 2024
- 392
- Medicare patients, 2024
- 276
- Part D claims, 2024
- 284
- MIPS score, 2024
- 87
- Hospital affiliations
- 3
- Practice address
- 1055 North Curtis Road, Boise, ID 83706
- Practice phone
- Call (208) 367-2121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stillwagon's professional email, personal email and mobile number
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Dr. Nathan T. Stillwagon is an emergency medicine physician in Boise, Idaho
Dr. Stillwagon practices at Saint Alphonsus Regional Medical Center in Boise, Idaho, part of Trinity Health.
Dr. Stillwagon's NPI, 1750511168, was assigned on July 20, 2009. Dr. Stillwagon graduated from University of Washington School of Medicine in 2009. Dr. Stillwagon holds Oregon license MD184107.
- NPI
- 1750511168NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921259649
- NPI enumeration date
- July 20, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (208) 367-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan T. Stillwagon practices at Saint Alphonsus Regional Medical Center in Boise, Idaho
Dr. Stillwagon's primary practice is Saint Alphonsus Regional Medical Center, at 1055 North Curtis Road, Boise, ID 83706 in Ada County. The practice phone is (208) 367-2121.
- Saint Alphonsus Regional Medical Center1055 North Curtis Road, Boise, ID 83706 · Ada CountyPhone(208) 367-2121
Source: Dmand AI Affiliation Data
Dr. Nathan T. Stillwagon is affiliated with 4 sites of care and 1 medical group
Dr. Stillwagon's primary practice is Saint Alphonsus Regional Medical Center in Boise, Idaho, part of Trinity Health. Dr. Stillwagon is also affiliated with Saint Alphonsus Medical Center - Nampa. The medical group on file is Vituity. Dmand AI also links Dr. Stillwagon to 1 more hospital 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. Nathan T. Stillwagon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stillwagon practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Alphonsus Regional Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan T. Stillwagon is one of 322 emergency medicine physicians in Idaho
Emergency medicine is Dr. Stillwagon's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Stillwagon's licenses on file in 2 states: Oregon and Idaho.
Specialties and state licenses
- Emergency medicine, OregonPrimary
- Idaho license
Emergency medicine physicians near Dr. Stillwagon
Counts of emergency medicine 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 T. Stillwagon billed Medicare for 392 services in 2024
CMS data shows 392 Medicare services from Dr. Stillwagon across 4 procedure codes in 2024, for 276 Medicare patients. Medicare paid $33,011 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stillwagon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3312024: 26919%
- Tests and treatments
- 2023: 1362024: 12310%
Dr. Stillwagon compared with the Idaho median for emergency medicine physicians, 2024
- Dr. Stillwagon
- Idaho median
- Medicare services
- 392vs 26448% above
- Medicare patients
- 276vs 265Close to median
- Part D claims
- 169vs 672.5 times
Medians across 335 emergency medicine physicians in Idaho with Dmand AI profiles that report each measure.
Dr. Stillwagon'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan T. Stillwagon treated 276 Medicare patients in 2024, average age 73
CMS counts 276 Medicare patients who saw Dr. Stillwagon in 2024. The largest group is 75 to 84, with 93 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.60, 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. Stillwagon's median patient age at 73, with 59% women.
Dr. Stillwagon's Medicare patients by age, 2024
Dr. Stillwagon's Medicare patients by sex, 2024
- Women14251%
- Men13449%
Chronic conditions among Dr. Stillwagon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis45%
- Mood disorders39%
- Depression36%
- Anxiety35%
- Diabetes35%
- Ischemic heart disease32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stillwagon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan T. Stillwagon wrote 284 Medicare Part D claims in 2024
In 2024, Dr. Stillwagon wrote 284 Medicare Part D claims for 188 patients. 95% of them were for generic drugs. CMS names the drug for 169 of them, across 8 drugs with 11 or more claims each, at $638 in total drug cost. In 2023, CMS named 121 claims across 7 drugs.
Dr. Stillwagon's Part D claims by kind of drug, 2024
- Generic269 claims95%
- Brand-name15 claims5%
Dr. Stillwagon'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. Stillwagon's Part D claims, 2024
- Opioids14%39 of 284 claims
- Antibiotics25%71 of 284 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: 1212024: 16940%
Drugs named by CMS: 8 in 2024, 7 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 T. Stillwagon scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Stillwagon for performance year 2024, reported as part of a group. Dr. Stillwagon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Stillwagon's MIPS scores, performance year 2024
- 87of 100Final score
- 70.9of 100Quality
- 40of 100Improvement Activities
- 93of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Nathan T. Stillwagon received $348 in industry payments from 2016 to 2017
CMS Open Payments shows 3 general payments to Dr. Stillwagon from 3 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $124.
General payments to Dr. Stillwagon by program year, 2016 to 2017
Companies that paid Dr. Stillwagon the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathan T. Stillwagon graduated from University of Washington School of Medicine
Dr. Stillwagon graduated from University of Washington School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathan T. Stillwagon'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) |
| 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. Nathan T. Stillwagon
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 T. Stillwagon's NPI number?
Dr. Nathan T. Stillwagon's NPI number is 1750511168. It was assigned on July 20, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan T. Stillwagon?
Dr. Nathan T. Stillwagon is an emergency medicine physician in Boise, Idaho. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nathan T. Stillwagon practice?
Dr. Stillwagon practices at 1055 North Curtis Road, Boise, ID 83706. Dr. Stillwagon's primary practice is Saint Alphonsus Regional Medical Center in Boise, Idaho, part of Trinity Health. Dmand AI also links Dr. Stillwagon to 1 hospital and 1 group practice or clinic.
What is Dr. Nathan T. Stillwagon's office phone number?
The practice phone on file for Dr. Stillwagon is (208) 367-2121.
What is Dr. Nathan T. Stillwagon's medical license number?
Dr. Stillwagon holds Oregon license MD184107, one of the licenses on file in 2 states.
Which states has Dr. Nathan T. Stillwagon been licensed in?
Dmand AI has state licenses on file for Dr. Stillwagon in Oregon and Idaho.
Which hospitals is Dr. Nathan T. Stillwagon affiliated with?
Dr. Stillwagon practices at Saint Alphonsus Regional Medical Center in Boise, Idaho. Dr. Stillwagon is also affiliated with Saint Alphonsus Medical Center - Nampa. Dmand AI links Dr. Stillwagon to 1 more hospital.
What medical group is Dr. Nathan T. Stillwagon part of?
Dr. Stillwagon is linked to Vituity.
Does Dr. Nathan T. Stillwagon accept Medicare?
Yes. CMS data shows Dr. Stillwagon billed Medicare for 392 services in 2024, and Dr. Stillwagon accepts Medicare assignment.
What is Dr. Nathan T. Stillwagon's MIPS score?
Dr. Stillwagon's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Nathan T. Stillwagon see?
CMS counts 276 Medicare patients who saw Dr. Stillwagon in 2024, with an average age of 73.
What services does Dr. Nathan T. Stillwagon bill to Medicare?
In 2024, Dr. Stillwagon's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Nathan T. Stillwagon go to medical school?
Dr. Stillwagon graduated from University of Washington School of Medicine in 2009.
What drugs does Dr. Nathan T. Stillwagon prescribe most?
In 2024 Medicare Part D data, Dr. Stillwagon's most prescribed drugs by claims were Meloxicam, Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. Nathan T. Stillwagon received payments from drug or device companies?
CMS Open Payments shows $348 in general payments to Dr. Stillwagon from 3 companies from 2016 to 2017. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Nathan T. Stillwagon been practicing?
Dr. Stillwagon graduated from medical school in 2009, 17 years ago.
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