Doctor profile · Federal record
Dr. Naihsien Chen, M.D.
Internal Medicine Physician · Hospitalist Physician · Modesto, CA
- NPI 1174699755
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
803 Coffee RD Ste 6
Modesto, CA 953554238
(626) 888-6000
fax (888) 318-6618 - Mailing address
-
5599 Rollins St
Las Vegas, NV 891186050
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- January 14, 2026
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A73562
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174699755. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,535
Distinct HCPCS
4
Medicare allowed
$162,796
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 698 | 188 | $119 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 630 | 185 | $79 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 104 | 100 | $174 | |
99239 |
Hospital discharge day management, more than 30 minutes | 103 | 101 | $115 |
In context: peer comparison
Among 33 peers in this city , average services per provider: 189. This provider delivers 8.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
166
Patients
159
Total drug cost
$1,867
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 55 | 55 | $544 |
| Atorvastatin Calcium | Generic | 33 | 30 | $305 |
| Amlodipine Besylate | Generic | 15 | 14 | $98 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 15 | 15 | $88 |
| Gabapentin | Generic | 13 | 12 | $291 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 12 | 11 | $360 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 12 | 11 | $103 |
| Lisinopril | Generic | 11 | 11 | $80 |
Frequently asked questions
What is Dr. Naihsien Chen's medical specialty?
Dr. Naihsien Chen practices Internal Medicine Physician in Modesto, CA.
Where does Dr. Naihsien Chen practice?
Dr. Naihsien Chen practices at 803 Coffee RD Ste 6, Modesto, CA 953554238. Office phone: 6268886000.
What is Dr. Naihsien Chen's NPI?
Dr. Naihsien Chen's National Provider Identifier (NPI) is 1174699755, issued by NPPES.
What procedures does Dr. Naihsien Chen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.