Quyen Nguyen
Allergy & Immunology (Internal Medicine) Physician · Pittsburgh, PA
Quyen Nguyen is an allergy & immunology (internal medicine) physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1194040303, issued on Mar 30, 2010. Check the license (Pennsylvania MD457181, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Quyen Nguyen
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License number
- MD457181 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3459 5TH Ave, Pittsburgh, PA 15213
- Phone
- (412) 692-2210
- Enumerated
- Mar 30, 2010
- Record last updated
- May 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160818000513); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology (internal medicine) physician records → All 21 in Pennsylvania → Look up another NPI →
Also registered at 3459 5TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olufunso Agbalajobi, MD, MPHStudent in an Organized Health Care Education/Training Program1902397839
- Akanksha Aggarwal, MDStudent in an Organized Health Care Education/Training Program1669228979
- Allison Agnone, DNPAcute Care Clinical Nurse Specialist1013887322
- Mohamed Al-AskariTransplant Surgery Physician1447562285
- Mazen Al-Qadi, MDPulmonary Disease Physician1487818886
- Sarmad Alshamery, MDSurgery Physician1235706656
Verify Quyen Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD457181Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
426 Medicare Part D claims for 56 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D.
Most prescribed
- Tadalafil81 claims
- Sildenafil Citrate43 claims
- Adempas27 claims
- Ambrisentan27 claims
- Trelegy Ellipta26 claims
- Tyvaso Dpi25 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): 77.5 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).
Bills Medicare through one group practice
- University OF Pittsburgh PhysiciansPittsburgh, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Quyen Nguyen among 21 allergy & immunology (internal medicine) physician records in Pennsylvania
Quyen Nguyen is one of 21 allergy & immunology (internal medicine) physician records with a practice address in Pennsylvania. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 48% of them.
- NPI issued2010 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2010 · median 2012 among the 12 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology (Internal Medicine) Physician providers in Pennsylvania
There are 21 allergy & immunology (internal medicine) physician records in Pennsylvania.
All 21 in Pennsylvania → Every provider in Pittsburgh → Allergy & Immunology (Internal Medicine) Physician nationwide →
The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes
- Anthony Lacava, MDPittsburgh, PA 152131639608011
- Nikolaos Maniatis, MDPittsburgh, PA 152131467790220
- Ali Ayyash, MD, MPH, MSPittsburgh, PA 152351467913186
- John Kemp, D.O.Hershey, PA 170331093932493
- Bob ReidFairfield, PA 173201639731516
- Megan McCarty, M.D.Allentown, PA 181041568953206
- Ulyana Trytko, M.D.Allentown, PA 181041831648344
- Robert Zemble, M.D.Allentown, PA 181041124224027
Common questions
What is Quyen Nguyen's NPI number?
Quyen Nguyen's National Provider Identifier (NPI) is 1194040303, issued on Mar 30, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Quyen Nguyen located?
The NPPES record lists a practice address at 3459 5TH Ave, Pittsburgh, PA, 15213. Phone: (412) 692-2210. Providers update this record themselves, so call before visiting.
How can I verify Quyen Nguyen's license?
NPPES lists Pennsylvania license number MD457181, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Quyen Nguyen prescribe under Medicare Part D?
In 2024, Quyen Nguyen had 426 Medicare Part D claims for 56 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.
What is Quyen Nguyen's MIPS final score?
The 2023 MIPS final score is 77.5 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.