Doctor profile · Federal record
Dr. Mark Kotlarewsky
Internal Medicine Physician (CMS: Internal Medicine) · Washington, DC
- NPI 1154485621
- Accepts Medicare
- MIPS 79.1 / 100 · 2023
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
110 Irving St Nw, Ste 2A-38E
Washington, DC 200102975
(202) 877-4677
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- April 21, 2011
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- District of Columbia #MD036355
- Medicaid
- DC #024905300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154485621. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,060
Distinct HCPCS
5
Medicare allowed
$123,428
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 594 | 171 | $132 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 220 | 60 | $87 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 131 | 72 | $34 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 104 | 100 | $190 | |
99239 |
Hospital discharge day management, more than 30 minutes | 11 | 11 | $128 |
In context: peer comparison
Among 219 peers in Washington Internal Medicine Physician, average services per provider: 102. This provider delivers 10× the peer median.Frequently asked questions
What is Dr. Mark Kotlarewsky's medical specialty?
Dr. Mark Kotlarewsky practices Internal Medicine Physician in Washington, DC.
Where does Dr. Mark Kotlarewsky practice?
Dr. Mark Kotlarewsky practices at 110 Irving St Nw, Washington, DC 200102975. Office phone: 2028774677.
What is Dr. Mark Kotlarewsky's NPI?
Dr. Mark Kotlarewsky's National Provider Identifier (NPI) is 1154485621, issued by NPPES.
Does Dr. Mark Kotlarewsky accept Medicare assignment?
Yes. Dr. Mark Kotlarewsky accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Kotlarewsky commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316). Source: CMS Medicare Physician & Other Practitioners file.