Dr. Carmen Tsang , DMD
Dentist • Longmont, CO
641 Ken Pratt Blvd
Longmont, CO 805016419
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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NPI assigned on August 22, 2011; this date does not establish years in practice.
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Published CMS data list 29 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 — 18 prescription fills, including refills.
- Clindamycin Hcl — 11 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 the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 75% of clinicians listed under Dentist in Longmont, CO (2024, 18 clinicians with data). Median for this group: 40. Middle half: 29 to 79.
Close to the middle for Part D prescriptions among clinicians listed under Dentist in Colorado (2024, 782 clinicians with data). Median for this group: 31. Middle half: 18 to 62.
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 38 in 2015 to 29 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2015–2024.
Practice Location & Contact Primary Location
641 Ken Pratt Blvd
Longmont, CO 805016419
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: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
29 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
$172 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 2025
All general payments: $4,054.47 across 15 records.
By nature of payment
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $3,720.00 across 2 records.
- Food and Beverage: $334.47 across 13 records.
Reporting-company totals (3 largest of 5)
- DENTSPLY LLC: $3,720.00 across 2 records.
- Dentsply Sirona Inc: $214.66 across 7 records.
- Align Technology, Inc.: $91.33 across 4 records.
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 2025 (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.
Enrolled in Medicare (PECOS)
Dr. Tsang has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Tsang 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 Longmont and Colorado
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Dentist in Longmont, CO (2024, 18 clinicians with data). Median for this group: 40. Middle half: 29 to 79.
Close to the middle for clinicians listed under Dentist in Colorado (2024, 782 clinicians with data). Median for this group: 31. Middle half: 18 to 62.
Part D drug cost
Close to the middle for clinicians listed under Dentist in Longmont, CO (2024, 18 clinicians with data). Median for this group: $172. Middle half: $80 to $321.
A higher Part D drug cost than 60% of clinicians listed under Dentist in Colorado (2024, 782 clinicians with data). Median for this group: $123. Middle half: $66 to $273.
36 active clinicians are listed under Dentist with a practice address in Longmont, CO (2,024 in Colorado).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Longmont
0% of these 36 clinicians have the CMS telehealth indicator.
0% of these 36 clinicians are listed by CMS as accepting Medicare assignment.
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 24% from 38 in 2015 to 29 in 2024.
- 2015: 38
- 2016: 19
- 2017: 28
- 2023: 16
- 2024: 29
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30-day fills
30-day fills decreased 26% from 39 in 2015 to 29 in 2024.
- 2015: 39
- 2016: 19
- 2017: 29
- 2023: 16
- 2024: 29
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Part D drug cost
Part D drug cost went from $194 in 2015 to $172 in 2024.
- 2015: $194
- 2016: $100
- 2017: $116
- 2023: $106
- 2024: $172
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 233% from $1,217.32 in 2021 to $4,054.47 in 2025.
- 2021: $1,217.32
- 2022: $201.69
- 2023: $811.09
- 2024: $392.73
- 2025: $4,054.47
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): 15 records totaling $4,054.47.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| DENTSPLY LLC |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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Implant Dentistry | General | $3,480.00 |
| DENTSPLY LLC |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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Implant Dentistry | General | $240.00 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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ASTRA TECH Implant System | General | $55.75 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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ASTRA TECH Implant System | General | $52.51 |
| Align Technology, Inc. |
Food and Beverage
Cash or cash equivalent
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Invisalign | General | $44.92 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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ASTRA TECH Implant System | General | $42.44 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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OSSIX PLUS | General | $36.20 |
| Align Technology, Inc. |
Food and Beverage
Cash or cash equivalent
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Invisalign | General | $17.98 |
| Align Technology, Inc. |
Food and Beverage
Cash or cash equivalent
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Invisalign | General | $16.93 |
| Philips North America LLC |
Food and Beverage
Cash or cash equivalent
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Sonicare 6000 Series - Cairo | General | $14.83 |
| Elevate Oral Care |
Food and Beverage
Cash or cash equivalent
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Fluorimax 5000 | General | $13.65 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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Cercon | General | $12.16 |
| Align Technology, Inc. |
Food and Beverage
Cash or cash equivalent
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Invisalign | General | $11.50 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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ASTRA TECH Implant System | General | $9.23 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
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ASTRA TECH Implant System | General | $6.37 |
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 | 18 | 113 | $58.35 | 15 |
| Clindamycin Hcl | Clindamycin Hcl | 11 | 81 | $113.54 | — |
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: 122300000X
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
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 PECOSORDER AND REFERRING ONLY - DENTIST
I20150805007242
CO
5193039014
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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 Surgery
Dentist - General Practice
Doctor of Dental Medicine
Career & Practice History
NPI enumerated August 22, 2011.
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 Dentists in Longmont
- Dr. Stephen Sampson, DMD
- Dr. Cody Sanford, DDS
- Dr. Richard Luong, DMD
- Dr. Jay Pinkner, DDS
- Dr. Todd Roby, DDS
- Dr. Kurt Knechtel, DMD
Mailing Address
641 Ken Pratt Blvd
Longmont, CO 805016419