Doctor profile · Federal record
Dr. Ryan Day, MD PHD
Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Saint Louis, MO
- NPI 1417307976
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 10 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4921 Parkview Pl, Div Im Medical Oncology, Ste 7A, 7B, 7C
Saint Louis, MO 631101032
(800) 647-2098
fax (314) 362-3192 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- June 2016 — 10 yrs on file
- Profile last updated
- April 17, 2025
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Missouri #2019032162
- Medicaid
- MO #200063707
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417307976. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
389
Distinct HCPCS
2
Medicare allowed
$34,049
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 284 | 41 | $77 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 105 | 26 | $116 |
In context: peer comparison
Among 44 peers in this city , average services per provider: 919. This provider delivers 0.4× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Ryan Day's medical specialty?
Dr. Ryan Day practices Medical Oncology Physician in Saint Louis, MO.
Where does Dr. Ryan Day practice?
Dr. Ryan Day practices at 4921 Parkview Pl, Saint Louis, MO 631101032. Office phone: 8006472098.
What is Dr. Ryan Day's NPI?
Dr. Ryan Day's National Provider Identifier (NPI) is 1417307976, issued by NPPES.
Does Dr. Ryan Day accept Medicare assignment?
Yes. Dr. Ryan Day accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryan Day commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.