Alexander Gaitanis, D.O.
Medical Oncology Physician · Philadelphia, PA
Alexander Gaitanis, D.O. is a medical oncology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1114937844, issued on Aug 8, 2006. Check the license (Pennsylvania OS017678, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Alexander Gaitanis
- Credential
- D.O.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- OS017678 PA
10801 CA
1799 TN
Self-reported in NPPES; status is on the state search - Practice location
- 5501 Old York RD Ste 1, Philadelphia, PA 19141
- Phone
- (215) 456-3880
- Enumerated
- Aug 8, 2006
- Record last updated
- May 28, 2025
- Fax
- (215) 456-3437
- Medicare enrollment
- Enrolled (PECOS I20260224004425); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2003
- Entity
- Type 1 · individual
Also registered at 5501 Old York RD Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fattum AbbadStudent in an Organized Health Care Education/Training Program1750212270
- Vitoria Acar, MDStudent in an Organized Health Care Education/Training Program1780500017
- Omar AhmadStudent in an Organized Health Care Education/Training Program1508596271
- Shakelah Ahmady, CRNPPediatric Nurse Practitioner1669139887
- Eman Ahmed, DOStudent in an Organized Health Care Education/Training Program1194518340
- Elise Ahn, MDStudent in an Organized Health Care Education/Training Program1639009095
Verify Alexander Gaitanis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS017678Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average medical oncology physician in 2024
776 Medicare Part D claims for 173 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 74 claims were for opioids.
Most prescribed
- Ondansetron Odt88 claims
- Letrozole65 claims
- Dexamethasone46 claims
- Hydrocodone-Acetaminophen36 claims
- Prochlorperazine Maleate33 claims
- Tasigna30 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): 90.1 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).
Industry payments in 2024: $308.19
14 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 3,343 providers of this specialty with any payment received $11,773.47 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 2 group practices
- Physicians OF Cape Cod HospitalHyannis, MA
- Providence Medical FoundationEureka, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Oncology Physician providers in Pennsylvania
There are 265 medical oncology physician records in Pennsylvania.
Other medical oncology physician records in Pennsylvania
- Maysa Abu-Khalaf, MDPhiladelphia, PA1194713495
- Abdul Adjei, MDWilkes Barre, PA1639351760
- Nicole Agostino, DOQuakertown, PA1063565042
- Sramila Aithal, MDBensalem, PA1205029816
- Heidar Albandar, MDFountain Hill, PA1659766889
- Seyfettin Alpdogan, MDPhiladelphia, PA1558538991
- Ravi Amaravadi, MDPhiladelphia, PA1043252455
- Fern Anari, M.D.Philadelphia, PA1922340090
- Charalambos Andreadis, MDPhiladelphia, PA1205877669
- Muhammad Arif, M.D.Wilkes Barre, PA1154393510
Common questions
What is Alexander Gaitanis, D.O.'s NPI number?
Alexander Gaitanis, D.O.'s National Provider Identifier (NPI) is 1114937844, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Gaitanis, D.O. located?
The NPPES record lists a practice address at 5501 Old York RD Ste 1, Philadelphia, PA, 19141. Phone: (215) 456-3880. Providers update this record themselves, so call before visiting.
How can I verify Alexander Gaitanis, D.O.'s license?
NPPES lists Pennsylvania license number OS017678, 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 Alexander Gaitanis, D.O. prescribe under Medicare Part D?
In 2024, Alexander Gaitanis, D.O. had 776 Medicare Part D claims for 173 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Alexander Gaitanis, D.O.'s MIPS final score?
The 2023 MIPS final score is 90.1 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.