Doctor profile · Federal record

Dr. Chasen Greig, M.D.

Surgery Physician (CMS: General Surgery) · Student in an Organized Health Care Education/Training Program · Hartford, CT

  • NPI 1649513466
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
114 Woodland St
Hartford, CT 061051208
(860) 714-5237
Additional location
333 City Blvd West Ste 1600
Orange, CA 92868
(714) 456-7890
Additional location
759 Chestnut St
Springfield, MA 011991001
(413) 794-0000
Mailing address
1000 Asylum Ave Ste 4302
West Hartford, CT 061051704

Credentials & registration

NPPES · NUCC
NPI registered
March 2013 — 13 yrs on file
Profile last updated
July 16, 2021
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
Connecticut #69152

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649513466. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
175
Distinct HCPCS
3
Medicare allowed
$25,926
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 78 53 $82
99291 Critical care, first 30-74 minutes 51 32 $221
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 46 45 $180

In context: peer comparison

Among 14 peers in this city , average services per provider: 34. This provider delivers 5.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$102
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
INTUITIVE SURGICAL, INC. 1 $85.26
CONMED Corporation 1 $16.30

By nature of payment

Food and Beverage
$102

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Chasen Greig's medical specialty?
Dr. Chasen Greig practices Surgery Physician in Hartford, CT.
Where does Dr. Chasen Greig practice?
Dr. Chasen Greig practices at 114 Woodland St, Hartford, CT 061051208. Office phone: 8607145237.
What is Dr. Chasen Greig's NPI?
Dr. Chasen Greig's National Provider Identifier (NPI) is 1649513466, issued by NPPES.
Does Dr. Chasen Greig accept Medicare assignment?
Yes. Dr. Chasen Greig accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chasen Greig commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.