Doctor profile · Federal record

Dr. Theodoros Karantanos

Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Baltimore, MD

  • NPI 1982023388
  • MIPS 74.4 / 100 · 2023
  • 15 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
201 N Broadway St
Baltimore, MD 212870031
(410) 955-8893
fax (410) 955-0125
Additional location
72 E Newton St # 124
Boston, MA 021182308
(617) 638-7253
Additional location
840 Harrison Avenue, Apt 1706
Boston, MA 02118
(617) 638-8000
Mailing address
6201 Greenleigh Ave
Middle River, MD 212202004

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
June 1, 2022
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State licenses (2)
Maryland #D83090 · Massachusetts #273620

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1982023388. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
176
Distinct HCPCS
4
Medicare allowed
$15,672
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 86 20 $82
85097 Bone marrow, smear interpretation 51 49 $49
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 24 22 $175
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 15 12 $124

In context: peer comparison

Among 37 peers in Baltimore Medical Oncology Physician, average services per provider: 1,726. This provider delivers 0.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Theodoros Karantanos's medical specialty?
Dr. Theodoros Karantanos practices Medical Oncology Physician in Baltimore, MD.
Where does Dr. Theodoros Karantanos practice?
Dr. Theodoros Karantanos practices at 201 N Broadway St, Baltimore, MD 212870031. Office phone: 4109558893.
What is Dr. Theodoros Karantanos's NPI?
Dr. Theodoros Karantanos's National Provider Identifier (NPI) is 1982023388, issued by NPPES.
Does Dr. Theodoros Karantanos accept Medicare assignment?
Dr. Theodoros Karantanos does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Theodoros Karantanos commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Bone marrow, smear interpretation (HCPCS 85097); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.