Doctor profile · Federal record

Dr. Richard Green, MD

Gastroenterology Physician (CMS: Gastroenterology) · Hepatology Physician · Chicago, IL

  • NPI 1770511404
  • Accepts Medicare
  • MIPS 91.3 / 100 · 2023
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
259 E Erie St Fl 16
Chicago, IL 606112987
(312) 695-5620
fax (312) 695-0042
Mailing address
676 N Saint Clair St Ste 1440
Chicago, IL 606112927

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
October 17, 2019
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Illinois #036075792

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770511404. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
54
Distinct HCPCS
3
Medicare allowed
$4,817
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 22 21 $152
91200 Measurement of liver stiffness 20 20 $11
99214 Established patient office or other outpatient visit, 30-39 minutes 12 12 $104

In context: peer comparison

Among 70 peers in this city , average services per provider: 239. This provider delivers 0.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$8,896
Transactions
15
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Mirum Pharmaceuticals, Inc. 15 $8,895.66

By nature of payment

Consulting Fee
$7,800
Food and Beverage
$903
Travel and Lodging
$193

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
198
Patients
29
Total drug cost
$91,952
Drug Type Claims Patients Total cost
Ursodiol Generic 67 17 $28,862
Azathioprine Generic 41 12 $2,291
Mycophenolate Mofetil Generic 27 0 $5,736
Vemlidy (Tenofovir Alafenamide) Brand 27 0 $41,692
Entecavir Generic 23 0 $12,096
Tenofovir Disoproxil Fumarate Generic 13 0 $1,275

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Richard Green's medical specialty?
Dr. Richard Green practices Gastroenterology Physician in Chicago, IL.
Where does Dr. Richard Green practice?
Dr. Richard Green practices at 259 E Erie St Fl 16, Chicago, IL 606112987. Office phone: 3126955620.
What is Dr. Richard Green's NPI?
Dr. Richard Green's National Provider Identifier (NPI) is 1770511404, issued by NPPES.
Does Dr. Richard Green accept Medicare assignment?
Yes. Dr. Richard Green accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Green commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Measurement of liver stiffness (HCPCS 91200); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.