Doctor profile · Federal record

Dr. Alexander Gaitanis, D.O.

Medical Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Medical Oncology Physician · Philadelphia, PA

  • NPI 1114937844
  • Accepts Medicare
  • MIPS 83.5 / 100 · 2023
  • 23 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
5501 Old York RD Ste 1
Philadelphia, PA 191413018
(215) 456-3880
fax (215) 456-3437
Additional location
8900 Wilshire Blvd
Beverly Hills, CA 902111958
(877) 320-5131
fax (310) 432-8901
Additional location
1000 East Mountain Blvd
Wilkes Barre, PA 187113486
(570) 808-4772
fax (570) 808-6174
Mailing address
101 E Olney Ave Ste 400
Philadelphia, PA 191202470

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
May 28, 2025
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State licenses (3)
Pennsylvania #OS017678 · Tennessee #1799 · California #10801

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114937844. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
283
Distinct HCPCS
3
Medicare allowed
$27,515
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 226 117 $93
99215 Established patient office or other outpatient visit, 40-54 minutes 39 33 $135
99213 Established patient office or other outpatient visit, 20-29 minutes 18 17 $63

In context: peer comparison

Among 48 peers in Philadelphia Medical Oncology Physician, average services per provider: 121. This provider delivers 2.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$308
Transactions
14
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 2 $50.92
Abbvie INC. 2 $42.53
Pfizer INC. 2 $39.32
AstraZeneca Pharmaceuticals Lp 1 $32.01
Incyte Corporation 1 $25.00
Daiichi Sankyo INC. 1 $22.05
Eisai INC. 1 $21.98
Sobi, INC 1 $21.67
BeiGene USA, INC. 1 $19.70
Merck Sharp & Dohme LLC 1 $17.00
Genentech USA, INC. 1 $16.01

By nature of payment

Food and Beverage
$308

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
265
Patients
54
Total drug cost
$178,821
Drug Type Claims Patients Total cost
Ondansetron Odt (Ondansetron) Brand 53 24 $1,134
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 40 11 $794
Letrozole Generic 28 19 $676
Anastrozole Generic 16 0 $789
Morphine Sulfate ER (Morphine Sulfate) Brand 16 0 $401
Alendronate Sodium Generic 14 0 $60
Potassium Chloride Generic 14 0 $192
Dexamethasone Generic 13 0 $97
Gabapentin Generic 13 0 $129
Tamoxifen Citrate Generic 13 0 $427

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexander Gaitanis's medical specialty?
Dr. Alexander Gaitanis practices Medical Oncology Physician in Philadelphia, PA.
Where does Dr. Alexander Gaitanis practice?
Dr. Alexander Gaitanis practices at 5501 Old York RD Ste 1, Philadelphia, PA 191413018. Office phone: 2154563880.
What is Dr. Alexander Gaitanis's NPI?
Dr. Alexander Gaitanis's National Provider Identifier (NPI) is 1114937844, issued by NPPES.
Does Dr. Alexander Gaitanis accept Medicare assignment?
Yes. Dr. Alexander Gaitanis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Gaitanis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.