Dr. Tien Chun D. Wang , DDS
Dentist - General Practice • Walnut, CA
1309 N Grand Ave
Walnut, CA 91789
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. Tien Chun Wang is listed in NPPES under Dentist - General Practice.
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NPI assigned on April 9, 2007; this date does not establish years in practice.
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Published CMS data list 13 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 — 13 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 90% of clinicians listed under Dentist - General Practice in Walnut, CA (2024, 11 clinicians with data). Median for this group: 50. Middle half: 30 to 67.
Fewer Part D prescriptions than 85% of clinicians listed under Dentist - General Practice in California (2024, 6,508 clinicians with data). Median for this group: 35. Middle half: 18 to 69.
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 13 in 2020 to 13 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
1309 N Grand Ave
Walnut, CA 91789
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
13 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
$62 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 $22.77 in 2024
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 2024.
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.
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Compared with the same specialty in Walnut and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 90% of clinicians listed under Dentist - General Practice in Walnut, CA (2024, 11 clinicians with data). Median for this group: 50. Middle half: 30 to 67.
Fewer Part D prescriptions than 85% of clinicians listed under Dentist - General Practice in California (2024, 6,508 clinicians with data). Median for this group: 35. Middle half: 18 to 69.
Part D drug cost
A lower Part D drug cost than 90% of clinicians listed under Dentist - General Practice in Walnut, CA (2024, 11 clinicians with data). Median for this group: $164. Middle half: $114 to $248.
A lower Part D drug cost than 80% of clinicians listed under Dentist - General Practice in California (2024, 6,508 clinicians with data). Median for this group: $147. Middle half: $75 to $317.
25 active clinicians are listed under Dentist - General Practice with a practice address in Walnut, CA (17,953 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Walnut
0% of these 25 clinicians have the CMS telehealth indicator.
0% of these 25 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 went from 13 in 2020 to 13 in 2024.
- 2020: 13
- 2021: 36
- 2022: 25
- 2023: 13
- 2024: 13
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30-day fills
30-day fills went from 13 in 2020 to 13 in 2024.
- 2020: 13
- 2021: 36
- 2022: 25
- 2023: 13
- 2024: 13
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Part D drug cost
Part D drug cost went from $146 in 2020 to $62 in 2024.
- 2020: $146
- 2021: $353
- 2022: $157
- 2023: $54
- 2024: $62
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $21.46 in 2023 to $22.77 in 2024.
- 2023: $21.46
- 2024: $22.77
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $22.77.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Premier Dental Products Company |
Food and Beverage
Cash or cash equivalent
|
BioCoat | General | $22.77 |
Source: CMS Open Payments, program year 2024, 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 | 13 | 92 | $62.09 | 13 |
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.
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
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Recorded as TIEN CHUN WANG, DDS
Registered at 1309 N GRAND AVE, WALNUT, CA 91789 (Tel: 9095947899)
NPI status registered as active in NPPES database
Registered at 1309 N GRAND AVE, WALNUT, CA 917891317 (Tel: 9095947899)
Registered at 1309 N GRAND AVE, WALNUT, CA 917891317 (Tel: 9095947899)
Recorded as TIEN CHUN DAVID WANG, DDS
Dentist (license number reported to NPPES: CA 35179)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentist - General Practices in Walnut
- Dr. Michael Wang, DDS
- Dr. Rocheli Noble-Durian, DDS
- Dr. Harvey Chen, DDS
- Dr. Kenvis Ngow, DDS
- Dr. Tiffany Hsu, DDS
- Dr. Rashmi Kumra, DDS
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Mailing Address
1309 N Grand Ave
Walnut, CA 917891317
Phone: 9095947899