Doctor profile · Federal record
Dr. Matthew Grzegozewski
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Lone Tree, CO
- NPI 1417163536
- Accepts Medicare
- MIPS 86.2 / 100 · 2023
- 22 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10101 Ridgegate Parkway
Lone Tree, CO 801249810
(720) 225-1900
fax (303) 306-7753 - Mailing address
-
Po Box 173862
Denver, CO 802173862
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- July 2, 2015
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Colorado #DR.0052852 · Maryland #D66242
- Medicaid
- CO #99936383
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417163536. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
221
Distinct HCPCS
5
Medicare allowed
$24,719
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99283 |
Emergency department visit with low level of medical decision making | 89 | 77 | $71 | |
99284 |
Emergency department visit with moderate level of medical decision making | 61 | 55 | $119 | |
99285 |
Emergency department visit with high level of medical decision making | 38 | 36 | $173 | |
99291 |
Critical care, first 30-74 minutes | 19 | 19 | $211 | |
99282 |
Emergency department visit with straightforward medical decision making | 14 | 13 | $41 |
In context: peer comparison
Among 5 peers in Lone Tree Emergency Medicine Physician, average services per provider: 74. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$135
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Ceribell, INC. | 1 | $134.76 |
By nature of payment
Frequently asked questions
What is Dr. Matthew Grzegozewski's medical specialty?
Dr. Matthew Grzegozewski practices Emergency Medicine Physician in Lone Tree, CO.
Where does Dr. Matthew Grzegozewski practice?
Dr. Matthew Grzegozewski practices at 10101 Ridgegate Parkway, Lone Tree, CO 801249810. Office phone: 7202251900.
What is Dr. Matthew Grzegozewski's NPI?
Dr. Matthew Grzegozewski's National Provider Identifier (NPI) is 1417163536, issued by NPPES.
Does Dr. Matthew Grzegozewski accept Medicare assignment?
Yes. Dr. Matthew Grzegozewski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Grzegozewski commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with low level of medical decision making (HCPCS 99283); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285). Source: CMS Medicare Physician & Other Practitioners file.