Doctor profile · Federal record
Dr. Michael Maris, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Denver, CO
- NPI 1053395624
- Accepts Medicare
- MIPS 57.7 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1800 Williams St, Ste 300
Denver, CO 802181238
(720) 754-4800
fax (720) 754-4801 - Mailing address
-
4900 S Monaco St, #210
Denver, CO 802373486
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- October 1, 2013
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Colorado #43475
- Medicaid (5)
- KS #200443060B · NM #33784007 · NE #10025893500 · WY #123706300 · CO #25326741
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053395624. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13,190
Distinct HCPCS
10
Medicare allowed
$605,581
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9144 |
Injection, daratumumab, 10 mg and hyaluronidase-fihj | 10,440 | 29 | $47 | |
J1568 |
Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | 930 | 14 | $42 | |
J3475 |
Injection, magnesium sulfate, per 500 mg | 440 | 27 | $1 | |
36415 |
Insertion of needle into vein for collection of blood sample | 436 | 76 | $8 | |
J2405 |
Injection, ondansetron hydrochloride, per 1 mg | 264 | 16 | $0 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 191 | 81 | $179 | |
96366 |
Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 103 | 38 | $21 | |
96401 |
Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | 98 | 44 | $75 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 79 | 48 | $66 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 50 | 35 | $136 |
In context: peer comparison
Among 15 peers in Denver Hematology & Oncology Physician, average services per provider: 845. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$197
Transactions
9
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Celgene Corporation | 3 | $70.85 | |
| Abbvie INC. | 3 | $56.50 | |
| Astellas Pharma US INC | 1 | $28.13 | |
| Genzyme Corporation | 1 | $21.92 | |
| Janssen Biotech, INC. | 1 | $19.58 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
520
Patients
39
Total drug cost
$1,254,328
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Acyclovir | Generic | 87 | 22 | $2,745 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 73 | 17 | $420 |
| Valacyclovir (Valacyclovir Hcl) | Brand | 71 | 0 | $2,952 |
| Jakafi (Ruxolitinib Phosphate) | Brand | 54 | 0 | $939,144 |
| Ursodiol | Generic | 30 | 0 | $2,461 |
| Potassium Chloride | Generic | 28 | 0 | $559 |
| Levothyroxine Sodium | Generic | 27 | 0 | $276 |
| Dexamethasone | Generic | 20 | 0 | $348 |
| Hydrocortisone | Generic | 20 | 0 | $585 |
| Xospata (Gilteritinib Fumarate) | Brand | 20 | 0 | $262,047 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Maris's medical specialty?
Dr. Michael Maris practices Hematology & Oncology Physician in Denver, CO.
Where does Dr. Michael Maris practice?
Dr. Michael Maris practices at 1800 Williams St, Denver, CO 802181238. Office phone: 7207544800.
What is Dr. Michael Maris's NPI?
Dr. Michael Maris's National Provider Identifier (NPI) is 1053395624, issued by NPPES.
Does Dr. Michael Maris accept Medicare assignment?
Yes. Dr. Michael Maris accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Maris commonly perform?
Top Medicare-reported procedures in 2023: Injection, daratumumab, 10 mg and hyaluronidase-fihj (HCPCS J9144); Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg (HCPCS J1568); Injection, magnesium sulfate, per 500 mg (HCPCS J3475). Source: CMS Medicare Physician & Other Practitioners file.