Doctor profile · Federal record
Dr. Nikiya Asamoah-Clark, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Washington, DC
- NPI 1336464478
- Accepts Medicare
- 16 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
110 Irving St Nw
Washington, DC 200103017
(202) 877-7108
fax (202) 877-3062
Credentials & registration
- NPI registered
- April 2010 — 16 yrs on file
- Profile last updated
- September 15, 2023
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- District of Columbia #MD210001577 · Illinois #036135318
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336464478. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
468
Distinct HCPCS
10
Medicare allowed
$71,913
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 77 | 77 | $104 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 70 | 69 | $142 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 64 | 64 | $266 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 50 | 37 | $142 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 43 | 42 | $105 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 30 | 24 | $102 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 28 | 28 | $104 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 24 | 16 | $200 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 23 | 23 | $189 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 19 | 19 | $127 |
In context: peer comparison
Among 24 peers in this city , average services per provider: 72. This provider delivers 6.5× the peer median.Open Payments
Industry payments received
All-time total
$6,676
Transactions
12
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Scientific Affairs, LLC | 5 | $6,108.84 | |
| Janssen Biotech, Inc. | 4 | $367.11 | |
| Janssen Research & Development, LLC | 1 | $122.38 | |
| Boston Scientific Corporation | 1 | $46.32 | |
| Celltrion USA Inc. | 1 | $31.05 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
221
Patients
82
Total drug cost
$720,321
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Linzess (Linaclotide) | Brand | 39 | 0 | $23,922 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 31 | 30 | $492 |
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 28 | 27 | $465 |
| Pantoprazole Sodium | Generic | 24 | 12 | $635 |
| Dicyclomine Hcl | Generic | 23 | 0 | $557 |
| Omeprazole | Generic | 22 | 13 | $434 |
| Stelara (Ustekinumab) | Brand | 17 | 0 | $468,082 |
| Humira(Cf) Pen (Adalimumab) | Brand | 13 | 0 | $199,634 |
| Creon (Lipase/Protease/Amylase) | Brand | 12 | 0 | $25,940 |
| Famotidine | Generic | 12 | 0 | $159 |
Frequently asked questions
What is Dr. Nikiya Asamoah-Clark's medical specialty?
Dr. Nikiya Asamoah-Clark practices Gastroenterology Physician in Washington, DC.
Where does Dr. Nikiya Asamoah-Clark practice?
Dr. Nikiya Asamoah-Clark practices at 110 Irving St Nw, Washington, DC 200103017. Office phone: 2028777108.
What is Dr. Nikiya Asamoah-Clark's NPI?
Dr. Nikiya Asamoah-Clark's National Provider Identifier (NPI) is 1336464478, issued by NPPES.
Does Dr. Nikiya Asamoah-Clark accept Medicare assignment?
Yes. Dr. Nikiya Asamoah-Clark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nikiya Asamoah-Clark commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.