Doctor profile · Federal record

Dr. Helen Delichatsios, MD

Internal Medicine Physician (CMS: Internal Medicine) · Boston, MA

  • NPI 1366433724
  • Accepts Medicare
  • 32 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
165 Cambridge St, Suite 501
Boston, MA 021142723
(617) 726-4900
fax (617) 228-6306
Mailing address
Po Box 9142, Mass. General Physician Organization
Charlestown, MA 021299142

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
February 11, 2014
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #156645
Medicaid
MA #3187934

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366433724. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,029
Distinct HCPCS
10
Medicare allowed
$103,555
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 260 190 $8
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 161 161 $142
99214 Established patient office or other outpatient visit, 30-39 minutes 142 112 $140
99215 Established patient office or other outpatient visit, 40-54 minutes 135 99 $196
99213 Established patient office or other outpatient visit, 20-29 minutes 62 57 $99
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 45 45 $281
G0009 Administration of pneumococcal vaccine 45 45 $34
G0008 Administration of influenza virus vaccine 42 42 $34
99443 Telephone medical discussion with physician, 21-30 minutes 41 30 $140
90662 Influenza vaccine split virus, preservative free 39 39 $72

In context: peer comparison

Among 547 peers in this city , average services per provider: 81. This provider delivers 13× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,638
Patients
473
Total drug cost
$26,162
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 265 93 $6,236
Lisinopril Generic 190 62 $1,855
Omeprazole Generic 146 49 $3,145
Amlodipine Besylate Generic 141 47 $1,111
Levothyroxine Sodium Generic 135 40 $2,040
Hydrochlorothiazide Generic 131 45 $871
Gabapentin Generic 106 22 $1,528
Simvastatin Generic 92 31 $953
Losartan Potassium Generic 82 25 $1,507
Metoprolol Succinate Generic 72 24 $2,128

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Helen Delichatsios's medical specialty?
Dr. Helen Delichatsios practices Internal Medicine Physician in Boston, MA.
Where does Dr. Helen Delichatsios practice?
Dr. Helen Delichatsios practices at 165 Cambridge St, Boston, MA 021142723. Office phone: 6177264900.
What is Dr. Helen Delichatsios's NPI?
Dr. Helen Delichatsios's National Provider Identifier (NPI) is 1366433724, issued by NPPES.
Does Dr. Helen Delichatsios accept Medicare assignment?
Yes. Dr. Helen Delichatsios accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Helen Delichatsios commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.