Dr. Nikolas Erik Sirs, MD
- Medicare services, 2024
- 179
- Medicare patients, 2024
- 231
- Hospital affiliations
- 3
- Industry payments
- $210
- Medical groups
- 2
- Practice address
- 500 W Broadway, Missoula, MT 59802
- Practice phone
- Call (406) 543-7271
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sirs' professional email, personal email and mobile number
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Dr. Nikolas Erik Sirs is an anesthesiologist in Missoula, Montana
Dr. Sirs practices at Providence St. Patrick Hospital in Missoula, Montana, part of Providence Health & Services.
Dr. Sirs' NPI, 1972913796, was assigned on May 1, 2014. Dr. Sirs graduated from University of Virginia School of Medicine in 2014. Dr. Sirs holds Montana license MED-PHYS-LIC-62162.
- NPI
- 1972913796NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820216740
- NPI enumeration date
- May 1, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 543-7271
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nikolas Erik Sirs practices at Providence St. Patrick Hospital in Missoula, Montana
Dr. Sirs' primary practice is Providence St. Patrick Hospital, at 500 W Broadway, Missoula, MT 59802 in Missoula County. The practice phone is (406) 543-7271.
- Providence St. Patrick Hospital500 W Broadway, Missoula, MT 59802 · Missoula CountyPhone(406) 543-7271
Source: Dmand AI Affiliation Data
Dr. Nikolas Erik Sirs is affiliated with 4 sites of care and 2 medical groups
Dr. Sirs' primary practice is Providence St. Patrick Hospital in Missoula, Montana, part of Providence Health & Services. Dr. Sirs is also affiliated with Community Medical Center. The medical group on file is Billings Clinic. Dmand AI also links Dr. Sirs to 1 more hospital, 1 group practice or clinic 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. Nikolas Erik Sirs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sirs practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence St. Patrick Hospital | Available with a free account |
| +3 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 Providence Health & Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nikolas Erik Sirs is one of 232 anesthesiologists in Montana
Anesthesiology is Dr. Sirs' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Sirs is licensed in Montana.
Specialties and state licenses
- Anesthesiology, MontanaPrimary
Anesthesiologists near Dr. Sirs
Counts of anesthesiologists 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. Nikolas Erik Sirs billed Medicare for 179 services in 2024
CMS data shows 179 Medicare services from Dr. Sirs across 8 procedure codes in 2024, for 231 Medicare patients. Medicare paid $24,731 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sirs' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1202024: 9521%
- Surgery
- 2023: 662024: 8427%
Dr. Sirs compared with the Montana median for anesthesiologists, 2024
- Dr. Sirs
- Montana median
- Medicare services
- 179vs 832.2 times
- Medicare patients
- 231vs 17929% above
Medians across 251 anesthesiologists in Montana with Dmand AI profiles that report each measure.
Dr. Sirs' 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. Sirs?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sirs and other anesthesiologists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nikolas Erik Sirs treated 231 Medicare patients in 2024, average age 72
CMS counts 231 Medicare patients who saw Dr. Sirs in 2024. The largest group is 65 to 74, with 139 patients. 69% of them have arthritis, and 67% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sirs' median patient age at 56, with 58% women.
Dr. Sirs' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sirs' Medicare patients by sex, 2024
- Women11650%
- Men11550%
Chronic conditions among Dr. Sirs' Medicare patients, 2024
- Arthritis69%
- High cholesterol67%
- High blood pressure64%
- Ischemic heart disease24%
- Mood disorders23%
- Anxiety21%
- Depression20%
- Atrial fibrillation17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sirs' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Nikolas Erik Sirs takes part in Medicare
Dr. Sirs accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nikolas Erik Sirs received $210 in industry payments from 2017 to 2019
CMS Open Payments shows 3 general payments to Dr. Sirs from 3 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Pacira Pharmaceuticals Incorporated paid the most, $125.
General payments to Dr. Sirs by program year, 2017 to 2019
Companies that paid Dr. Sirs the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nikolas Erik Sirs graduated from University of Virginia School of Medicine
Dr. Sirs graduated from University of Virginia School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nikolas Erik Sirs'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) |
| 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) |
| 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. Nikolas Erik Sirs
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. Nikolas Erik Sirs' NPI number?
Dr. Nikolas Erik Sirs' NPI number is 1972913796. It was assigned on May 1, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Nikolas Erik Sirs?
Dr. Nikolas Erik Sirs is an anesthesiologist in Missoula, Montana. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Nikolas Erik Sirs practice?
Dr. Sirs practices at 500 W Broadway, Missoula, MT 59802. Dr. Sirs' primary practice is Providence St. Patrick Hospital in Missoula, Montana, part of Providence Health & Services. Dmand AI also links Dr. Sirs to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Nikolas Erik Sirs' office phone number?
The practice phone on file for Dr. Sirs is (406) 543-7271.
What is Dr. Nikolas Erik Sirs' medical license number?
Dr. Sirs holds Montana license MED-PHYS-LIC-62162.
Which hospitals is Dr. Nikolas Erik Sirs affiliated with?
Dr. Sirs practices at Providence St. Patrick Hospital in Missoula, Montana. Dr. Sirs is also affiliated with Community Medical Center. Dmand AI links Dr. Sirs to 1 more hospital.
What medical group is Dr. Nikolas Erik Sirs part of?
Dr. Sirs is linked to Billings Clinic. Dmand AI links Dr. Sirs to 1 more medical group.
Does Dr. Nikolas Erik Sirs accept Medicare?
Yes. CMS data shows Dr. Sirs billed Medicare for 179 services in 2024, and Dr. Sirs accepts Medicare assignment.
How many Medicare patients does Dr. Nikolas Erik Sirs see?
CMS counts 231 Medicare patients who saw Dr. Sirs in 2024, with an average age of 72.
What services does Dr. Nikolas Erik Sirs bill to Medicare?
In 2024, Dr. Sirs' most billed Medicare services were surgery: brain, spine and nerves (64447), anesthesia (01402) and surgery: brain, spine and nerves (64415).
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Where did Dr. Nikolas Erik Sirs go to medical school?
Dr. Sirs graduated from University of Virginia School of Medicine in 2014.
Has Dr. Nikolas Erik Sirs received payments from drug or device companies?
CMS Open Payments shows $210 in general payments to Dr. Sirs from 3 companies from 2017 to 2019. The largest total came from Pacira Pharmaceuticals Incorporated.
How long has Dr. Nikolas Erik Sirs been practicing?
Dr. Sirs graduated from medical school in 2014, 12 years ago.
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