Dr. John Alex Collier , DDS
Dentist - General Practice • Oxford, MS
2162 S Lamar Blvd
Oxford, MS 386555224
Phone: 6622361969
Location details and other listingsThis profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
This NPI Is Deactivated in NPPES
NPPES lists this NPI as deactivated as of September 17, 2026; the reason is not published. The records below are historical. They do not show whether Dr. John Collier currently practices or holds a license; check the state medical board for current license status.
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Dr. John Collier was listed in NPPES under Dentist - General Practice.
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NPI assigned on March 4, 2007; this date does not establish years in practice.
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Published CMS data list 374 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 — 174 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 127 prescription fills, including refills.
- Clindamycin Hcl — 49 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 5 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 280 in 2020 to 374 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
2162 S Lamar Blvd
Oxford, MS 386555224
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dentist - General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
374 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
$1,252 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $37.93 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
NPI first issued
2007
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.
Compared with the same specialty in Oxford and Mississippi
Comparisons are not shown because NPPES lists this NPI as deactivated.
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 34% from 280 in 2020 to 374 in 2024.
- 2020: 280
- 2021: 238
- 2022: 202
- 2023: 250
- 2024: 374
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30-day fills
30-day fills increased 33% from 282 in 2020 to 374 in 2024.
- 2020: 282
- 2021: 238
- 2022: 202
- 2023: 250
- 2024: 374
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Part D drug cost
Part D drug cost decreased 17% from $1,518 in 2020 to $1,252 in 2024.
- 2020: $1,518
- 2021: $1,094
- 2022: $1,080
- 2023: $1,227
- 2024: $1,252
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $66.40 in 2020 to $37.93 in 2025.
- 2020: $66.40
- 2022: $42.29
- 2023: $39.90
- 2024: $200.00
- 2025: $37.93
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), 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 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $37.93.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| GC America Inc. |
Food and Beverage
Cash or cash equivalent
|
G-aenial | General | $37.93 |
Source: CMS Open Payments, program year 2025, 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 | 174 | 1,139 | $404.02 | 127 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 127 | 403 | $482.91 | 110 |
| Clindamycin Hcl | Clindamycin Hcl | 49 | 353 | $238.60 | 41 |
| Ondansetron Odt | Ondansetron | 12 | 28 | $41.42 | 11 |
| Chlorhexidine Gluconate | Chlorhexidine Gluconate | 12 | 212 | $85.43 | — |
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
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.
Additional State Medicaid & Healthcare Payer Identifiers
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 - General Practice
Doctor of Dental Medicine
Dentist
Doctor of Dental Medicine
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPPES lists this NPI as deactivated as of September 17, 2026; the reason is not published.
NPI status registered as active in NPPES database
Registered at 2162 S LAMAR BLVD, OXFORD, MS 386555224 (Tel: 6622361969)
Registered at 2162 S LAMAR BLVD, OXFORD, MS 386555224 (Tel: 6622361969)
Recorded as JOHN COLLIER, DDS
Dentist (license number reported to NPPES: MS 2869-95)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentist - General Practices in Oxford
- Dr. Andrew Ross, DMD
- Dr. Tracy Tosh, DMD
- Christopher Mathews
- Dr. Preston Lee, DDS
- Dr. Alison Ross, DMD
- Dr. Larissa Hammer, DMD
Mailing Address
2162 S Lamar Blvd
Oxford, MS 386555224
Phone: 6622361969