An L. Nguyen, M.D.
Allergy & Immunology Physician · Houston, TX
An L. Nguyen, M.D. is an allergy & immunology physician with a practice address in Houston, Texas, and NPI 1841559283, issued on May 4, 2012. Check the license (Texas Q2691, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- An L. Nguyen
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- Q2691 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1213 Hermann Dr Ste 550, Houston, TX 77004
- Phone
- (713) 820-6380
- Enumerated
- May 4, 2012
- Record last updated
- Mar 7, 2023
- Fax
- (713) 820-6377
- Medicare enrollment
- Enrolled (PECOS I20200227000729); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 327 in Texas → Look up another NPI →
Also registered at 1213 Hermann Dr Ste 550
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlos Vital, M.D.Allergy Physician1871588541
Verify An L. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q2691Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
468 Medicare Part D claims for 124 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Azelastine Hcl61 claims
- Fluticasone Propionate47 claims
- Montelukast Sodium42 claims
- Epinephrine31 claims
- Albuterol Sulfate Hfa30 claims
- Ipratropium Bromide26 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,973.83
140 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 2,496 providers of this specialty with any payment received $8,321.81 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
- Mcgovern Allergy Clinic, P.A.Bellaire, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
An L. Nguyen among 327 allergy & immunology physician records in Texas
An L. Nguyen, M.D. is one of 327 allergy & immunology physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 76% of them.
- NPI issued2012 · 76% of these records are older, 23% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2012 · median 2003 among the 228 with a school on file
- Record last updated2023 · 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 207K00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Texas
There are 327 allergy & immunology physician records in Texas.
All 327 in Texas → Every provider in Houston → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Prathyusha Savjani, M.D.Houston, TX 770081639460959
- Joshua Eubanks, M.D.Houston, TX 770141659794279
- Leonard Hoffman, MDHouston, TX 770241154324069
- Glenn Kline, MDHouston, TX 770241689677510
- Patricia Leonard, M.D.Houston, TX 770241407895600
- Jean Marcoux, M.D.Houston, TX 770241588610059
- Ronald Negrich, M.D.Houston, TX 770241376546655
- Yoshiko Ogawa-Reel, MDHouston, TX 770241932303518
Common questions
What is An L. Nguyen, M.D.'s NPI number?
An L. Nguyen, M.D.'s National Provider Identifier (NPI) is 1841559283, issued on May 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is An L. Nguyen, M.D. located?
The NPPES record lists a practice address at 1213 Hermann Dr Ste 550, Houston, TX, 77004. Phone: (713) 820-6380. Providers update this record themselves, so call before visiting.
How can I verify An L. Nguyen, M.D.'s license?
NPPES lists Texas license number Q2691, 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 An L. Nguyen, M.D. prescribe under Medicare Part D?
In 2024, An L. Nguyen, M.D. had 468 Medicare Part D claims for 124 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
What is An L. Nguyen, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.