Doctor profile · Federal record
Dr. Nancy Chang, DO
Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Oceanside, CA
- NPI 1710241559
- Accepts Medicare
- 14 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4318 Mission Ave
Oceanside, CA 920576541
(760) 901-5010 - Mailing address
-
10790 Rancho Bernardo RD
San Diego, CA 921275705
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- February 11, 2026
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- California #20A24359 · Oregon #DO182981
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1710241559. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
330
Distinct HCPCS
9
Medicare allowed
$27,838
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 140 | 81 | $97 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 54 | 54 | $57 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 37 | 31 | $76 | |
96127 |
Assessment of emotional or behavioral problems | 22 | 12 | $5 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 22 | 16 | $120 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 16 | 16 | $281 | |
G0009 |
Administration of pneumococcal vaccine | 16 | 16 | $31 | |
0124A |
Adm sarscv2 bvl 30mcg/.3ml a | 12 | 12 | $42 | |
81003 |
Automated urinalysis test | 11 | 11 | $2 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 65. This provider delivers 5.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,716
Patients
523
Total drug cost
$29,068
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 298 | 90 | $5,543 |
| Lisinopril | Generic | 181 | 60 | $1,893 |
| Hydrochlorothiazide | Generic | 152 | 49 | $972 |
| Levothyroxine Sodium | Generic | 148 | 47 | $2,822 |
| Losartan Potassium | Generic | 125 | 42 | $2,018 |
| Amlodipine Besylate | Generic | 112 | 36 | $983 |
| Trazodone Hcl | Generic | 111 | 31 | $1,260 |
| Gabapentin | Generic | 91 | 35 | $3,255 |
| Sertraline Hcl | Generic | 75 | 16 | $827 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 74 | 21 | $819 |
Hospital affiliations
Frequently asked questions
What is Dr. Nancy Chang's medical specialty?
Dr. Nancy Chang practices Family Medicine Physician in Oceanside, CA.
Where does Dr. Nancy Chang practice?
Dr. Nancy Chang practices at 4318 Mission Ave, Oceanside, CA 920576541. Office phone: 7609015010.
What is Dr. Nancy Chang's NPI?
Dr. Nancy Chang's National Provider Identifier (NPI) is 1710241559, issued by NPPES.
Does Dr. Nancy Chang accept Medicare assignment?
Yes. Dr. Nancy Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nancy Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.