Doctor profile · Federal record
Dr. Mavis Peng, MD
Internal Medicine Physician (CMS: Hospitalist) · Hospitalist Physician · Orange, CA
- NPI 1922637966
- Accepts Medicare
- 6 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
101 the City Dr S
Orange, CA 928683201
(714) 456-8888 - Additional location
-
14445 Olive View Dr
Sylmar, CA 913421437
(747) 210-3205 - Additional location
-
757 Westwood Plz Ste 7501
Los Angeles, CA 900951437
(310) 267-9643 - Mailing address
-
200 S Manchester Ave Ste 300
Orange, CA 928683219
Credentials & registration
- NPI registered
- April 2020 — 6 yrs on file
- Profile last updated
- June 13, 2025
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A185893
- Medicaid
- VA #351356256015
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922637966. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
442
Distinct HCPCS
7
Medicare allowed
$52,279
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 168 | 106 | $114 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 84 | 27 | $125 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 65 | 20 | $32 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 52 | 36 | $163 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 31 | 30 | $193 | |
99239 |
Hospital discharge day management, more than 30 minutes | 25 | 25 | $121 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 17 | $182 |
In context: peer comparison
Among 42 peers in this city , average services per provider: 103. This provider delivers 4.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
299
Patients
66
Total drug cost
$23,421
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 44 | 19 | $1,350 |
| Eliquis (Apixaban) | Brand | 39 | 12 | $9,965 |
| Diclofenac Sodium | Generic | 24 | 11 | $680 |
| Jardiance (Empagliflozin) | Brand | 22 | 0 | $7,779 |
| Pantoprazole Sodium | Generic | 22 | 13 | $880 |
| Benazepril Hcl | Generic | 17 | 0 | $366 |
| Oxycodone Hcl | Generic | 17 | 11 | $155 |
| Gabapentin | Generic | 16 | 0 | $768 |
| Levothyroxine Sodium | Generic | 16 | 0 | $337 |
| Amlodipine Besylate | Generic | 15 | 0 | $323 |
Frequently asked questions
What is Dr. Mavis Peng's medical specialty?
Dr. Mavis Peng practices Internal Medicine Physician in Orange, CA.
Where does Dr. Mavis Peng practice?
Dr. Mavis Peng practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7144568888.
What is Dr. Mavis Peng's NPI?
Dr. Mavis Peng's National Provider Identifier (NPI) is 1922637966, issued by NPPES.
Does Dr. Mavis Peng accept Medicare assignment?
Yes. Dr. Mavis Peng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mavis Peng commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316). Source: CMS Medicare Physician & Other Practitioners file.