Doctor profile · Federal record

Dr. George Groussis, MD

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

  • NPI 1184690992
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
140 W Boylston Dr
Worcester, MA 016062726
(508) 756-9200
fax (508) 756-9277

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
April 30, 2022
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #81987
Medicaid
MA #3152707

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184690992. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,417
Distinct HCPCS
10
Medicare allowed
$108,598
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 294 151 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 291 144 $132
99213 Established patient office or other outpatient visit, 20-29 minutes 158 89 $92
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 114 114 $134
G0444 Annual depression screening, 5 to 15 minutes 110 110 $19
G0008 Administration of influenza virus vaccine 74 74 $34
90662 Influenza vaccine split virus, preservative free 73 73 $72
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 72 70 $15
99215 Established patient office or other outpatient visit, 40-54 minutes 66 51 $185
G0009 Administration of pneumococcal vaccine 45 44 $34

In context: peer comparison

Among 114 peers in this city , average services per provider: 102. This provider delivers 14× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,035
Transactions
49
Manufacturers
14
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 11 $272.59
Exact Sciences Corporation 8 $177.06
Lilly USA, LLC 10 $174.45
PFIZER INC. 4 $73.14
Janssen Pharmaceuticals, Inc 3 $68.06
Novo Nordisk Inc 3 $52.19
Ardelyx, Inc. 2 $42.66
Otsuka America Pharmaceutical, Inc. 2 $38.17
Inspire Medical Systems, Inc. 1 $26.98
SANOFI PASTEUR INC. 1 $25.30
Abbott Laboratories 1 $24.17
GlaxoSmithKline, LLC. 1 $21.62
Amgen Inc. 1 $21.29
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $17.29

By nature of payment

Food and Beverage
$1,035

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,700
Patients
768
Total drug cost
$63,929
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 402 114 $14,222
Amlodipine Besylate Generic 382 109 $3,246
Lisinopril Generic 292 81 $3,329
Famotidine Generic 210 61 $4,067
Levothyroxine Sodium Generic 180 48 $3,019
Metoprolol Succinate Generic 177 52 $7,008
Omeprazole Generic 167 52 $5,856
Sertraline Hcl Generic 164 43 $3,031
Metformin Hcl Er (Metformin Hcl) Brand 142 41 $2,783
Hydrochlorothiazide Generic 135 40 $736

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. George Groussis's medical specialty?
Dr. George Groussis practices Internal Medicine Physician in Worcester, MA.
Where does Dr. George Groussis practice?
Dr. George Groussis practices at 140 W Boylston Dr, Worcester, MA 016062726. Office phone: 5087569200.
What is Dr. George Groussis's NPI?
Dr. George Groussis's National Provider Identifier (NPI) is 1184690992, issued by NPPES.
Does Dr. George Groussis accept Medicare assignment?
Yes. Dr. George Groussis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. George Groussis commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.