Tommy Chua Sim, M.D.
Allergy Physician · Friendswood, TX
Tommy Chua Sim, M.D. is an allergy physician with a practice address in Friendswood, Texas, and NPI 1306872353, issued on Jun 23, 2006. Check the license (Texas H3753, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Tommy Chua Sim
- Credential
- M.D.
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- H3753 TX
Self-reported in NPPES; status is on the state search - Practice location
- 357 E Parkwood Ave, Friendswood, TX 77546
- Phone
- (281) 992-3274
- Enumerated
- Jun 23, 2006
- Record last updated
- Mar 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (281) 992-3672
- Medicaid ID
- 123931101 TX
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 76 in Texas → Look up another NPI →
Also registered at 357 E Parkwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsay Jones, NPFamily Medicine Physician1326607847
Verify Tommy Chua Sim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H3753Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average allergy physician in 2024
2,256 Medicare Part D claims for 282 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D.
Most prescribed
- Ipratropium Bromide335 claims
- Fluticasone Propionate300 claims
- Levocetirizine Dihydrochloride182 claims
- Albuterol Sulfate Hfa137 claims
- Prednisone137 claims
- Azelastine Hcl133 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: $782.12
32 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 502 providers of this specialty with any payment received $9,080.33 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.
Tommy Chua Sim among 76 allergy physician records in Texas
Tommy Chua Sim, M.D. is one of 76 allergy physician records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 26% of them.
- NPI issued2006 · 26% of these records are older, 34% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2019 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in Texas
There are 76 allergy physician records in Texas.
All 76 in Texas → Every provider in Friendswood → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Akram Mushtaha, M.D., M.SPasadena, TX 775051598942203
- Sunil Saraf, M.D.Pasadena, TX 775051376506295
- Alissa Welsh, MDWebster, TX 775981831509116
- Joseph Perez, M.D.Sugar Land, TX 774781750390605
- Rubina Wahid, MDSugar Land, TX 774781992707756
- Renee Clary, PA-CBellaire, TX 774011841474459
- Venugopal Menon, M.D.Bellaire, TX 774011457357808
- Theresa Queng, M.D.,M.P.H.Bellaire, TX 774011538165022
Common questions
What is Tommy Chua Sim, M.D.'s NPI number?
Tommy Chua Sim, M.D.'s National Provider Identifier (NPI) is 1306872353, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tommy Chua Sim, M.D. located?
The NPPES record lists a practice address at 357 E Parkwood Ave, Friendswood, TX, 77546. Phone: (281) 992-3274. Providers update this record themselves, so call before visiting.
How can I verify Tommy Chua Sim, M.D.'s license?
NPPES lists Texas license number H3753, 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 Tommy Chua Sim, M.D. prescribe under Medicare Part D?
In 2024, Tommy Chua Sim, M.D. had 2,256 Medicare Part D claims for 282 beneficiaries; the average among allergy physician prescribers was 750. 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.