ALEXANDER GAITANIS D.O.
NPI 1114937844
Internal Medicine - Medical Oncology in Philadelphia, PA
About Alexander Gaitanis D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER GAITANIS D.O. (NPI 1114937844) is an individual medical oncology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (OS017678) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Cape Cod Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Alexander Gaitanis D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Alexander Gaitanis reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pottsville, PA 17901
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 clinicians in this Medicare group
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 678 clinicians in this Medicare group
Ronceverte, WV 24970
- Reassigned Medicare billing, West Virginia enrollment
- 1,511 clinicians in this Medicare group
Apple Valley, CA 92308
- Reassigned Medicare billing, California enrollment
- 1,699 clinicians in this Medicare group
Irvine, CA 92617
- Reassigned Medicare billing, California enrollment
- 118 clinicians in this Medicare group
Bakersfield, CA 93306
- Reassigned Medicare billing, California enrollment
- 4 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cape Cod Hospital
Acute Care Hospitals · Hyannis, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19141
PHILADELPHIA, PA 19141
PHILADELPHIA, PA 19141
PHILADELPHIA, PA 19141
PHILADELPHIA, PA 19141
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Alexander Gaitanis's NPI number?
The NPI number for Alexander Gaitanis is 1114937844. It was assigned to this individual provider in the NPPES registry on August 8, 2006.
Where is Alexander Gaitanis located?
Alexander Gaitanis practices at 5501 Old York Rd Ste 1, Philadelphia, PA 19141. The listed phone number is (215) 456-3880.
What is Alexander Gaitanis's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Alexander Gaitanis enrolled in Medicare?
Yes. Alexander Gaitanis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Alexander Gaitanis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Gaitanis reassigns Medicare benefits to 6 organizations: Geisinger Clinic (Pottsville, PA), Physicians Of Cape Cod Hospital (Hyannis, MA), Charleston Area Medical Center, Inc. (Ronceverte, WV), Providence Medical Foundation (Apple Valley, CA), Confermed Of California PC (Irvine, CA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Gaitanis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Gaitanis accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource and Taro Health list Alexander Gaitanis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexander Gaitanis affiliated with any hospitals?
According to CMS data, Alexander Gaitanis is affiliated with Cape Cod Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Gaitanis was last updated on May 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Alexander Gaitanis, D.O. · NPI 1114937844
Medical Oncology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since August 8, 2006.
## Identity
- **NPI:** 1114937844 (Entity type: Individual)
- **Enumerated:** August 8, 2006
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** OS017678 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 5501 OLD YORK RD STE 1, Philadelphia, PA 19141-3018
- **Phone:** (215) 456-3880 · **Fax:** (215) 456-3437
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Geisinger Clinic (NPI 1043261183, Pottsville, PA); Physicians Of Cape Cod Hospital (NPI 1679832364, Hyannis, MA); Charleston Area Medical Center, Inc. (NPI 1972125995, Ronceverte, WV); Providence Medical Foundation (NPI 1053616706, Apple Valley, CA); Confermed Of California PC (NPI 1316584709, Irvine, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Philadelphia College Of Osteopathic Medicine, class of 2003
## Record status
- **NPPES last updated:** May 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1114937844) · Data from the CMS NPPES public registry.