Doctor profile · Federal record
Dr. Jay Grassell, MD
Hospitalist Physician (CMS: Hospitalist) · Family Medicine Physician · Marysville, CA
- NPI 1821029687
- Accepts Medicare
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
414 G Street, Ste 210
Marysville, CA 95901
(530) 741-1642
fax (530) 741-2056 - Mailing address
-
Po Box 3067
Yuba City, CA 959923067
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- November 19, 2021
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State licenses (2)
- California #G63050 · California #G063050
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821029687. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
161
Distinct HCPCS
1
Medicare allowed
$27,929
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 161 | 157 | $173 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 247. This provider delivers 0.7× the peer median.Frequently asked questions
What is Dr. Jay Grassell's medical specialty?
Dr. Jay Grassell practices Hospitalist Physician in Marysville, CA.
Where does Dr. Jay Grassell practice?
Dr. Jay Grassell practices at 414 G Street, Marysville, CA 95901. Office phone: 5307411642.
What is Dr. Jay Grassell's NPI?
Dr. Jay Grassell's National Provider Identifier (NPI) is 1821029687, issued by NPPES.
Does Dr. Jay Grassell accept Medicare assignment?
Yes. Dr. Jay Grassell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jay Grassell commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.