Doctor profile · Federal record

Dr. Michael Grey, M.D., M.P.H.

Internal Medicine Physician (CMS: Internal Medicine) · Preventive Medicine/Occupational Environmental Medicine Physician · New Britain, CT

  • NPI 1881777936
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 Grand St, Hospital of Central Connecticut
New Britain, CT 06050
(860) 224-5661
fax (860) 224-5785

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
June 15, 2021
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #030127

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1881777936. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
132
Distinct HCPCS
5
Medicare allowed
$12,768
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 58 49 $69
99214 Established patient office or other outpatient visit, 30-39 minutes 24 17 $135
99214 Established patient office or other outpatient visit, 30-39 minutes 17 16 $101
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 17 17 $136
99213 Established patient office or other outpatient visit, 20-29 minutes 16 13 $95

In context: peer comparison

Among 25 peers in New Britain Internal Medicine Physician, average services per provider: 100. This provider delivers 1.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$72
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 2 $47.61
Exact Sciences Corporation 1 $24.55

By nature of payment

Food and Beverage
$72

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,025
Patients
373
Total drug cost
$16,400
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 133 47 $1,419
Atorvastatin Calcium Generic 128 65 $1,976
Gabapentin Generic 108 32 $1,879
Metformin Hcl Generic 93 34 $813
Lisinopril Generic 91 33 $678
Metoprolol Succinate Generic 70 22 $1,857
Carvedilol Generic 51 16 $613
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 48 15 $1,674
Allopurinol Generic 46 12 $707
Hydrochlorothiazide Generic 45 17 $240

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Grey's medical specialty?
Dr. Michael Grey practices Internal Medicine Physician in New Britain, CT.
Where does Dr. Michael Grey practice?
Dr. Michael Grey practices at 100 Grand St, New Britain, CT 06050. Office phone: 8602245661.
What is Dr. Michael Grey's NPI?
Dr. Michael Grey's National Provider Identifier (NPI) is 1881777936, issued by NPPES.
Does Dr. Michael Grey accept Medicare assignment?
Yes. Dr. Michael Grey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Grey commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.