Carlo Aj Oller, M.D.
Emergency Medicine Physician · Bethlehem, PA
Carlo Aj Oller, M.D. is an emergency medicine physician with a practice address in Bethlehem, Pennsylvania, and NPI 1801890140, issued on Jun 2, 2005. Check the license (Pennsylvania MD420038, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Carlo Aj Oller
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- MD420038 PA
ME95611 FL
Self-reported in NPPES; status is on the state search - Practice location
- 801 Ostrum St Ste 1, Bethlehem, PA 18015
- Phone
- (866) 785-8537
- Enumerated
- Jun 2, 2005
- Record last updated
- Aug 11, 2025
- Medicaid ID
- 001920615 PA
- Medicare enrollment
- Enrolled (PECOS I20040524000419); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,911 in Pennsylvania → Look up another NPI →
Also registered at 801 Ostrum St Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mashaim Ali, MDStudent in an Organized Health Care Education/Training Program1235056243
- Polexeni AltiparmakisNurse Practitioner1356207328
- Thomas Basil, PA-CPhysician Assistant1619523388
- Youcef Boureghda, MDStudent in an Organized Health Care Education/Training Program1316706864
- Nicholas Coan, DOCritical Care Medicine (Internal Medicine) Physician1104355197
- Jordan Dixon, PA-CPhysician Assistant1447037742
Verify Carlo Aj Oller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD420038Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average emergency medicine physician in 2024
805 Medicare Part D claims for 364 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 86 claims were for opioids.
Most prescribed
- Prednisone107 claims
- Hydrocodone-Acetaminophen51 claims
- Cephalexin40 claims
- Albuterol Sulfate Hfa35 claims
- Amlodipine Besylate31 claims
- Ondansetron Hcl30 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 MIPS final score for 2023 (Medicare payment program): 95.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- St Lukes Physician Group IncBethlehem, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carlo Aj Oller among 3,911 emergency medicine physician records in Pennsylvania
Carlo Aj Oller, M.D. is one of 3,911 emergency medicine physician records with a practice address in Pennsylvania. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2000 · median 2013 among the 2,231 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
342 emergency medicine physician records list a practice address in Bethlehem
They are 342 of the 4,797 NPPES records with a practice address in Bethlehem, and 3,911 emergency medicine physician records in Pennsylvania.
All 3,911 in Pennsylvania → Every provider in Bethlehem → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jack Chambers, DOBethlehem, PA 180151750355749
- Adam Colombo, DOBethlehem, PA 180151447224951
- Eric Dornblaser, DOBethlehem, PA 180151629042619
- Mary Eberhardt, MDBethlehem, PA 180151225002223
- Michael Heller, MDBethlehem, PA 180151740254531
- Craig Herring, MDBethlehem, PA 180151104890946
- Rebecca Jeanmonod, M.D.Bethlehem, PA 180151033102256
- Donald Jeanmonod, M.D.Bethlehem, PA 180151801889027
Common questions
What is Carlo Aj Oller, M.D.'s NPI number?
Carlo Aj Oller, M.D.'s National Provider Identifier (NPI) is 1801890140, issued on Jun 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Carlo Aj Oller, M.D. located?
The NPPES record lists a practice address at 801 Ostrum St Ste 1, Bethlehem, PA, 18015. Phone: (866) 785-8537. Providers update this record themselves, so call before visiting.
How can I verify Carlo Aj Oller, M.D.'s license?
NPPES lists Pennsylvania license number MD420038, 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 Carlo Aj Oller, M.D. prescribe under Medicare Part D?
In 2024, Carlo Aj Oller, M.D. had 805 Medicare Part D claims for 364 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Carlo Aj Oller, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.6 of 100. 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.