Doctor profile · Federal record
Dr. Richard Chasen, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Laurel, MD
- NPI 1790780351
- Accepts Medicare
- 49 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
7350 van Dusen RD, Ste 210
Laurel, MD 207075268
(301) 498-5500
fax (301) 498-7346 - Additional location
-
6230 Old Dobbin Ln Ste 150
Columbia, MD 210455809
(410) 730-9363
fax (410) 730-2084 - Additional location
-
7350 van Dusen RD Ste 410
Laurel, MD 207075265 - Mailing address
-
10770 Columbia Pike Ste 400
Silver Spring, MD 209014462
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- February 3, 2026
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Maryland #D0022862
- Medicaid
- MD #558421300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790780351. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
781
Distinct HCPCS
9
Medicare allowed
$124,118
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 373 | 252 | $137 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 156 | 156 | $181 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 84 | 83 | $158 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 44 | 44 | $97 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 43 | 43 | $278 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 27 | 27 | $198 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 20 | 20 | $197 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 20 | 20 | $202 | |
46600 |
Diagnostic exam of anus using an endoscope | 14 | 14 | $138 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 71. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$685
Transactions
37
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 14 | $203.21 | |
| Janssen Biotech, Inc. | 8 | $142.85 | |
| Madrigal Pharmaceuticals | 2 | $69.19 | |
| Celgene Corporation | 3 | $62.88 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $44.07 | |
| Intercept Pharmaceuticals, Inc. | 1 | $27.65 | |
| Celltrion USA Inc. | 1 | $23.54 | |
| Gilead Sciences, Inc. | 1 | $20.81 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $20.07 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $19.73 | |
| Phathom Pharmaceuticals, Inc. | 1 | $18.76 | |
| Alnylam Pharmaceuticals Inc. | 1 | $16.53 | |
| PFIZER INC. | 1 | $15.41 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
304
Patients
83
Total drug cost
$142,110
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Famotidine | Generic | 82 | 31 | $1,819 |
| Omeprazole | Generic | 46 | 21 | $874 |
| Pantoprazole Sodium | Generic | 41 | 17 | $915 |
| Esomeprazole Magnesium | Generic | 35 | 14 | $2,746 |
| Mesalamine | Generic | 30 | 0 | $27,915 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 18 | 0 | $10,558 |
| Humira Pen (Adalimumab) | Brand | 14 | 0 | $96,238 |
| Lansoprazole | Generic | 14 | 0 | $444 |
| Amitriptyline Hcl | Generic | 12 | 0 | $191 |
| Sucralfate | Generic | 12 | 0 | $411 |
Frequently asked questions
What is Dr. Richard Chasen's medical specialty?
Dr. Richard Chasen practices Gastroenterology Physician in Laurel, MD.
Where does Dr. Richard Chasen practice?
Dr. Richard Chasen practices at 7350 van Dusen RD, Laurel, MD 207075268. Office phone: 3014985500.
What is Dr. Richard Chasen's NPI?
Dr. Richard Chasen's National Provider Identifier (NPI) is 1790780351, issued by NPPES.
Does Dr. Richard Chasen accept Medicare assignment?
Yes. Dr. Richard Chasen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Chasen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.