Guillermo Juncos, MD
Allergy & Immunology Physician · Exton, PA
Guillermo Juncos, MD is an allergy & immunology physician with a practice address in Exton, Pennsylvania, and NPI 1386752590, issued on Aug 28, 2006. Check the license (Pennsylvania 033286-L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Guillermo Juncos
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 033286-L PA
Self-reported in NPPES; status is on the state search - Practice location
- 80 W Welsh Pool RD, Exton, PA 19341
- Phone
- (610) 363-7244
- Enumerated
- Aug 28, 2006
- Entity
- Type 1 · individual
Also registered at 80 W Welsh Pool RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Guillermo Juncos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license 033286-LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
80% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
161 Medicare Part D claims for 29 beneficiaries, against an average of 788 among the 2,397 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Prednisone20 claims
- Albuterol Sulfate Hfa17 claims
- Ventolin Hfa16 claims
- Fluticasone-Salmeterol13 claims
- Amoxicillin12 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.
Allergy & Immunology Physician providers in Pennsylvania
There are 170 allergy & immunology physician records in Pennsylvania.
Other allergy & immunology physician records in Pennsylvania
- Jerome Aarons, M.D.Pittsburgh, PA1992936611
- Elias Abboud, M.D.Jenkintown, PA1003815374
- Carol Actor, M.D.Phoenixville, PA1851444269
- Neha Agnihotri, MDCranberry Township, PA1700203817
- Sartaj Ahmed, M.D.Erie, PA1629255443
- Mohammad Akbar, MDPottsville, PA1568430973
- Elias Akl, M.D.Philadelphia, PA1104176106
- Taha Al-Shaikhly, M.B.CH.B.Hershey, PA1295155885
- David Anmuth, MDDanville, PA1700913290
- Robert Anolik, MDBlue Bell, PA1497758536
Common questions
What is Guillermo Juncos, MD's NPI number?
Guillermo Juncos, MD's National Provider Identifier (NPI) is 1386752590, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Juncos, MD located?
The NPPES record lists a practice address at 80 W Welsh Pool RD, Exton, PA, 19341. Phone: (610) 363-7244. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Juncos, MD's license?
NPPES lists Pennsylvania license number 033286-L, 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 Guillermo Juncos, MD prescribe under Medicare Part D?
In 2024, Guillermo Juncos, MD had 161 Medicare Part D claims for 29 beneficiaries; the average among allergy & immunology physician prescribers was 788. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.