Dr. James Iven Armbruster , DMD
Dentist - General Practice • Sterling, CO
501 S 3rd Ave
Sterling, CO 807514030
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. James Armbruster is listed in NPPES under Dentist - General Practice.
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NPI assigned on November 9, 2006; this date does not establish years in practice.
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Published CMS data list 38 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Chlorhexidine Gluconate — 22 prescription fills, including refills.
- Azithromycin — 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 72 in 2019 to 38 in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019–2023.
Practice Location & Contact Primary Location
501 S 3rd Ave
Sterling, CO 807514030
What Public CMS Data Show
Dentist - General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
50 standardized 30-day fills in 2023
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$270 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Can order Medicare-covered services
CMS lists Dr. Armbruster as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Sterling and Colorado
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Armbruster are from 2023.
8 active clinicians are listed under Dentist - General Practice with a practice address in Sterling, CO (2,493 in Colorado).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 47% from 72 in 2019 to 38 in 2023.
- 2019: 72
- 2020: 87
- 2021: 83
- 2022: 105
- 2023: 38
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30-day fills
30-day fills decreased 36% from 78 in 2019 to 50 in 2023.
- 2019: 78
- 2020: 91
- 2021: 89
- 2022: 106
- 2023: 50
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Part D drug cost
Part D drug cost went from $562 in 2019 to $270 in 2023.
- 2019: $562
- 2020: $554
- 2021: $608
- 2022: $627
- 2023: $270
Sources: CMS Medicare Part D Prescribers (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Chlorhexidine Gluconate | Chlorhexidine Gluconate | 22 | 910 | $173.67 | 12 |
| Azithromycin | Azithromycin | 16 | 59 | $95.83 | 13 |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History
NPI enumerated November 09, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Dentist - General Practices in Sterling
Mailing Address
501 S 3rd Ave
Sterling, CO 807514030
Phone: 9705221684