Guy Christopher Charest, DO
Dermatology Physician · Flower Mound, TX
Guy Christopher Charest, DO is a dermatology physician with a practice address in Flower Mound, Texas, and NPI 1770102600, issued on Apr 10, 2020. Check the license (Texas U9868, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Guy Christopher Charest
- Credential
- DO
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- U9868 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4471 Long Prairie RD Ste 100, Flower Mound, TX 75028
- Phone
- (972) 316-4555
- Enumerated
- Apr 10, 2020
- Record last updated
- May 16, 2024
- Fax
- (972) 316-4550
- Medicare enrollment
- Enrolled (PECOS I20240708001473); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 1,172 in Texas → Look up another NPI →
Also registered at 4471 Long Prairie RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Grace Brown, M.D.Dermatology Physician1164656054
- Alexandra McMullan, MS, PA-CPhysician Assistant1255870218
- Stuart Walek, M.D.Dermatology Physician1124128004
Verify Guy Christopher Charest in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U9868Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average dermatology physician in 2024
121 Medicare Part D claims for 76 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
Most prescribed
- Triamcinolone Acetonide27 claims
- Clobetasol Propionate21 claims
- Ketoconazole16 claims
- Fluorouracil13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,727.12
56 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dr Michael Mcguiness PAFlower Mound, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guy Christopher Charest among 1,172 dermatology physician records in Texas
Guy Christopher Charest, DO is one of 1,172 dermatology physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2020 · median 2008 among the 926 with a school on file
- Record last updated2024 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Texas
There are 1,172 dermatology physician records in Texas.
All 1,172 in Texas → Every provider in Flower Mound → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Grace Brown, M.D.Flower Mound, TX 750281164656054
- Shaily Kesani, MDFlower Mound, TX 750281306012166
- Isaac Perez, M.D.Flower Mound, TX 750281962400937
- Ray Vaughn, P.A.Flower Mound, TX 750281912106949
- Stuart Walek, M.D.Flower Mound, TX 750281124128004
- Darlene Gou, M.D.Plano, TX 750251245627082
- Sam Awan, M.D.Plano, TX 750241013322858
- Avani Bhambri, MDRockwall, TX 750321114122512
Common questions
What is Guy Christopher Charest, DO's NPI number?
Guy Christopher Charest, DO's National Provider Identifier (NPI) is 1770102600, issued on Apr 10, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Guy Christopher Charest, DO located?
The NPPES record lists a practice address at 4471 Long Prairie RD Ste 100, Flower Mound, TX, 75028. Phone: (972) 316-4555. Providers update this record themselves, so call before visiting.
How can I verify Guy Christopher Charest, DO's license?
NPPES lists Texas license number U9868, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Guy Christopher Charest, DO prescribe under Medicare Part D?
In 2024, Guy Christopher Charest, DO had 121 Medicare Part D claims for 76 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.