Claudia C. Pierson, M.D.
Internal Medicine Physician · Weslaco, TX
Claudia C. Pierson, M.D. is an internal medicine physician with a practice address in Weslaco, Texas, and NPI 1215158167, issued on May 1, 2007. Check the license (Texas K6904, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Claudia C. Pierson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- K6904 TX
Self-reported in NPPES; status is on the state search - Practice location
- 906 S Bridge Ave, Weslaco, TX 78596
- Phone
- (956) 447-8600
- Enumerated
- May 1, 2007
- Record last updated
- Jan 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (956) 447-0335
- Medicaid ID
- 030187101 TX
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 906 S Bridge Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tania Fabian-NavarretePhysician Assistant1134850498
- Maria Gonzalez, NPAdult Health Nurse Practitioner1790972669
- Jose Lerma, M.D.Internal Medicine Physician1164832515
- Francisco LugoFamily Nurse Practitioner1780242461
Verify Claudia C. Pierson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K6904Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average internal medicine physician in 2024
606 Medicare Part D claims for 218 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium31 claims
- Levothyroxine Sodium29 claims
- Lisinopril27 claims
- Rosuvastatin Calcium26 claims
- Amlodipine Besylate25 claims
- Jardiance25 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.
Claudia C. Pierson among 9,175 internal medicine physician records in Texas
Claudia C. Pierson, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2015 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 internal medicine physician records list a practice address in Weslaco
They are 34 of the 775 NPPES records with a practice address in Weslaco, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Weslaco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Hector Amaya Chinchilla, M.D.Weslaco, TX 785961366690588
- Jose Bejarano, M.D.Weslaco, TX 785961518168772
- Dionisio CalvoWeslaco, TX 785961487756094
- Brandon Cantazaro, MDWeslaco, TX 785961023404084
- Chelsea Chang, M.D.Weslaco, TX 785961033475801
- Gabriel Gonzalez, M.D.Weslaco, TX 785961689699647
- Cesar Gutierrez, M.D.Weslaco, TX 785961700263456
- Jose Lares, MDWeslaco, TX 785961407902182
Common questions
What is Claudia C. Pierson, M.D.'s NPI number?
Claudia C. Pierson, M.D.'s National Provider Identifier (NPI) is 1215158167, issued on May 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Claudia C. Pierson, M.D. located?
The NPPES record lists a practice address at 906 S Bridge Ave, Weslaco, TX, 78596. Phone: (956) 447-8600. Providers update this record themselves, so call before visiting.
How can I verify Claudia C. Pierson, M.D.'s license?
NPPES lists Texas license number K6904, 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 Claudia C. Pierson, M.D. prescribe under Medicare Part D?
In 2024, Claudia C. Pierson, M.D. had 606 Medicare Part D claims for 218 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.