NPPES file of Aug 9, 2026

Aleksander William Keller, MD

Emergency Medicine Physician · Pittsburgh, PA

Aleksander William Keller, MD is an emergency medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1043849771, issued on Apr 4, 2020. Check the license (Pennsylvania MD480557, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043849771
Name
Aleksander William Keller
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MD480557 PA
Self-reported in NPPES; status is on the state search
Practice location
200 Lothrop St, Pittsburgh, PA 15213
Phone
(412) 647-3333
Enumerated
Apr 4, 2020
Record last updated
May 20, 2024
Medicare enrollment
Enrolled (PECOS I20230609000019); accepts Medicare assignment
Medical or professional school
University Of Pittsburgh School Of Medicine, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 Lothrop St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amy AbbottCertified Registered Nurse Anesthetist1689943490
  2. Bisan Abboud, MDStudent in an Organized Health Care Education/Training Program1588359434
  3. Othman Abdul-MalakVascular Surgery Physician1003285602
  4. Mohamed Abdullah, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1164001277
  5. Raed Abdullah, MDSpecialist1962474353
  6. Michael Abesamis, M.D.Emergency Medicine Physician1467647958

Verify Aleksander William Keller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD480557
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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49% fewer Medicare Part D claims than the average emergency medicine physician in 2024

116 Medicare Part D claims for 80 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Aleksander Keller116
  2. Specialty average226

Most prescribed

  1. Oxycodone Hcl11 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.

  1. Qualityout of 100 · 30% of the final score68.6
  2. Costout of 100 · 30%56.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. St Clair Medical Services IncPittsburgh, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Aleksander William Keller among 3,911 emergency medicine physician records in Pennsylvania

Aleksander William Keller, MD 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 2020, is newer than 79% of them.

  • NPI issued2020 · 79% of these records are older, 17% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2020 · median 2013 among the 2,231 with a school on file
  • Record last updated2024 · 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).

424 emergency medicine physician records list a practice address in Pittsburgh

They are 424 of the 28,866 NPPES records with a practice address in Pittsburgh, and 3,911 emergency medicine physician records in Pennsylvania.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Aaron Brown, M.D.Pittsburgh, PA 152131508056375
  2. Stacie Byers, DOPittsburgh, PA 152131982663225
  3. Christopher Cole, MDPittsburgh, PA 152131447294517
  4. Keith ConoverPittsburgh, PA 152131265413363
  5. Ankur Doshi, MDPittsburgh, PA 152131659371359
  6. Orooj Fasiuddin, MDPittsburgh, PA 152131467426072
  7. Christian Martin-Gill, M.D.Pittsburgh, PA 152131043412943
  8. Vincent Mosesso, MDPittsburgh, PA 152131326012089

Common questions

What is Aleksander William Keller, MD's NPI number?

Aleksander William Keller, MD's National Provider Identifier (NPI) is 1043849771, issued on Apr 4, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Aleksander William Keller, MD located?

The NPPES record lists a practice address at 200 Lothrop St, Pittsburgh, PA, 15213. Phone: (412) 647-3333. Providers update this record themselves, so call before visiting.

How can I verify Aleksander William Keller, MD's license?

NPPES lists Pennsylvania license number MD480557, 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 Aleksander William Keller, MD prescribe under Medicare Part D?

In 2024, Aleksander William Keller, MD had 116 Medicare Part D claims for 80 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Aleksander William Keller, MD'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.