Doctor profile · Federal record
Dr. Mariko Ishiyama, D.O
Hospitalist Physician (CMS: Hospitalist) · Family Medicine Physician · Modesto, CA
- NPI 1952662991
- Accepts Medicare
- MIPS 85.7 / 100 · 2023
- 14 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1441 Florida Ave
Modesto, CA 953504404
(209) 576-3525 - Mailing address
-
3606 Brook St
Lafayette, CA 945494202
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- August 14, 2024
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State licenses (2)
- California #12904 · California #20A13309
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1952662991. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
156
Distinct HCPCS
2
Medicare allowed
$29,030
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 125 | 123 | $197 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 31 | 31 | $144 |
In context: peer comparison
Among 23 peers in this city , average services per provider: 170. This provider delivers 0.9× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Mariko Ishiyama's medical specialty?
Dr. Mariko Ishiyama practices Hospitalist Physician in Modesto, CA.
Where does Dr. Mariko Ishiyama practice?
Dr. Mariko Ishiyama practices at 1441 Florida Ave, Modesto, CA 953504404. Office phone: 2095763525.
What is Dr. Mariko Ishiyama's NPI?
Dr. Mariko Ishiyama's National Provider Identifier (NPI) is 1952662991, issued by NPPES.
Does Dr. Mariko Ishiyama accept Medicare assignment?
Yes. Dr. Mariko Ishiyama accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mariko Ishiyama commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.