Dr. Jon R Willison , DDS
Dentist - Endodontics • Fort Collins, CO
1903 Wilmington Dr Unit 101
Fort Collins, CO 805286100
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. Jon Willison is listed in NPPES under Dentist - Endodontics.
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NPI assigned on October 26, 2011; this date does not establish years in practice.
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Published CMS data list 205 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Amoxicillin — 45 prescription fills, including refills.
- Chlorhexidine Gluconate — 36 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 31 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 9 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 85% of clinicians listed under Dentist - Endodontics in Colorado (2024, 70 clinicians with data). Median for this group: 74. Middle half: 31 to 144.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 44 in 2020 to 205 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
1903 Wilmington Dr Unit 101
Fort Collins, CO 805286100
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Cheyenne, WY; Loveland, CO. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Dentist - Endodontics: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
205 standardized 30-day fills in 2024
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
$931 in 2024
The total cost of these prescriptions in 2024, 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, 2024.
Open Payments general payments, program year 2019
All general payments: $43.99 across 3 records.
By nature of payment
- Food and Beverage: $43.99 across 3 records.
Reporting-company totals
- Dentsply Sirona Inc: $30.45 across 2 records.
- Tulsa Dental Products LLC: $13.54 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2019 (published June 30, 2026).
NPI first issued
2011
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. Willison 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 Fort Collins and Colorado
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Dentist - Endodontics in Colorado (2024, 70 clinicians with data). Median for this group: 74. Middle half: 31 to 144.
Too few clinicians listed under Dentist - Endodontics in Fort Collins have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Dentist - Endodontics in Colorado (2024, 70 clinicians with data). Median for this group: $278. Middle half: $146 to $704.
Too few clinicians listed under Dentist - Endodontics in Fort Collins have Medicare Part D data for 2024 to compare.
8 active clinicians are listed under Dentist - Endodontics with a practice address in Fort Collins, CO (140 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 increased 366% from 44 in 2020 to 205 in 2024.
- 2020: 44
- 2021: 75
- 2022: 86
- 2023: 103
- 2024: 205
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30-day fills
30-day fills increased 366% from 44 in 2020 to 205 in 2024.
- 2020: 44
- 2021: 75
- 2022: 86
- 2023: 103
- 2024: 205
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Part D drug cost
Part D drug cost went from $241 in 2020 to $931 in 2024.
- 2020: $241
- 2021: $328
- 2022: $460
- 2023: $517
- 2024: $931
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $43.99.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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VORTEX BLUE | General | $15.38 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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VORTEX BLUE | General | $15.07 |
| Tulsa Dental Products LLC |
Food and Beverage
In-kind items and services
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PROTAPER GOLD | General | $13.54 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amoxicillin | Amoxicillin | 45 | 296 | $109.43 | 42 |
| Chlorhexidine Gluconate | Chlorhexidine Gluconate | 36 | 571 | $182.65 | 34 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 31 | 91 | $126.84 | 31 |
| Azithromycin | Azithromycin | 19 | 96 | $93.60 | 18 |
| Dexamethasone | Dexamethasone | 19 | 37 | $61.98 | 17 |
| Ibuprofen | Ibuprofen | 17 | 167 | $71.27 | 17 |
| Triazolam | Triazolam | 14 | 18 | $67.73 | 14 |
| Methylprednisolone | Methylprednisolone | 13 | 78 | $95.08 | 13 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 11 | 88 | $122.67 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2019-12-11NUCC Taxonomy Code: 1223E0200X
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
NUCC Taxonomy Code: 1223E0200X
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
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.
Secondary Practice Locations
2996 Ginnala Dr Ste 101
Loveland, CO 805382832
Phone: 9702926703
1950 Bluegrass Cir Ste 120
Cheyenne, WY 820097363
Phone: 3072226665
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist - Endodontics
Doctor of Dental Surgery
Dentist - Endodontics
Doctor of Dental Surgery
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1903 WILMINGTON DR UNIT 101, FORT COLLINS, CO 805286100 (Tel: 9705685255)
Registered at 1903 WILMINGTON DR UNIT 101, FORT COLLINS, CO 805286100 (Tel: 9705685255)
Dentist (license number reported to NPPES: CO 00203801)
Student in an Organized Health Care Education/Training Program (license number reported to NPPES: MO 2013042229)
Dentist (license number reported to NPPES: MO 2013042229)
NPI status registered as active in NPPES database
Registered at 1120 15TH ST # GC5110, AUGUSTA, GA 309121269 (Tel: (706) 721-2251)
Registered at 1120 15TH ST # GC5110, AUGUSTA, GA 309120004 (Tel: (706) 721-2251)
Recorded as JON WILLISON, DDS
Dentist (license number reported to NPPES: UT 8109994-9921)
NPI status registered as active in NPPES database
Registered at 331 SIJEN AVE, WHITEMAN AFB, MO 653051269 (Tel: 6606872201)
Registered at 331 SIJEN AVE, WHITEMAN AFB, MO 653051269 (Tel: 6606872201)
Recorded as JON WILLISON, DDS
Dentist (license number reported to NPPES: MO 2013042229)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentist - Endodontics Specialists in Fort Collins
- Dr. Shane Bergo, DDS, MSD
- Dr. Jason Maines, DDS, MS
- Dr. Bradley Levalley, DDS, MS
- Dr. Mark Kochevar, DMD
- Dr. Tyler Whiting, DDS
- Dr. Brandon Griffin, DDS
More public profiles in Colorado
Directory navigation, in NPI number order.
- Joshua Campbell, MD Family Medicine · Grand Junction
- John Schultz, MD Internal Medicine · Denver
- Mark Orr, DDS, MD Oral & Maxillofacial Surgery · Fort Collins
- Sing-I Palat, MD Internal Medicine · Englewood
- Thomas Pugh, MD Radiology - Radiation Oncology · Denver
- Kelley Prince, MD Family Medicine · Norwood
- Emad Yassa, PT Physical Therapist · Colorado Springs
- Ann Somers, DDS, MS Dentist - Periodontics · Denver
- Rocky Engbarth Physician Assistant · Denver
- Stacia Baker, MD Family Medicine · Clifton
- Douglas Minton, MD Obstetrics & Gynecology · Denver
- Michael Riggs, DDS Dentist · Lakewood
Mailing Address
1903 Wilmington Dr Unit 101
Fort Collins, CO 805286100
Phone: 9705685255