Doctor profile · Federal record
Dr. Jonathan Chao, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Palo Alto, CA
- NPI 1154611416
- Accepts Medicare
- 15 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
795 El Camino Real
Palo Alto, CA 943012302
(650) 321-4121 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- April 2011 — 15 yrs on file
- Profile last updated
- May 28, 2020
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A128476
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154611416. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
516
Distinct HCPCS
7
Medicare allowed
$73,531
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 233 | 167 | $155 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 127 | 127 | $160 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 87 | 81 | $111 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 24 | 21 | $218 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 17 | 16 | $75 | |
G0008 |
Administration of influenza virus vaccine | 16 | 15 | $38 | |
G0009 |
Administration of pneumococcal vaccine | 12 | 12 | $35 |
In context: peer comparison
Among 30 peers in this city , average services per provider: 82. This provider delivers 6.3× the peer median.Open Payments
Industry payments received
All-time total
$110
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| BIOTISSUE HOLDINGS INC. | 1 | $109.57 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,358
Patients
368
Total drug cost
$19,664
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 354 | 94 | $4,299 |
| Amlodipine Besylate | Generic | 216 | 62 | $2,199 |
| Simvastatin | Generic | 127 | 34 | $1,298 |
| Lisinopril | Generic | 95 | 23 | $1,022 |
| Losartan Potassium | Generic | 78 | 23 | $1,060 |
| Tamsulosin Hcl | Generic | 77 | 22 | $1,827 |
| Hydrochlorothiazide | Generic | 55 | 16 | $411 |
| Levothyroxine Sodium | Generic | 50 | 11 | $681 |
| Metoprolol Succinate | Generic | 49 | 13 | $1,028 |
| Metformin Hcl | Generic | 48 | 16 | $420 |
Hospital affiliations
Frequently asked questions
What is Dr. Jonathan Chao's medical specialty?
Dr. Jonathan Chao practices Internal Medicine Physician in Palo Alto, CA.
Where does Dr. Jonathan Chao practice?
Dr. Jonathan Chao practices at 795 El Camino Real, Palo Alto, CA 943012302. Office phone: 6503214121.
What is Dr. Jonathan Chao's NPI?
Dr. Jonathan Chao's National Provider Identifier (NPI) is 1154611416, issued by NPPES.
Does Dr. Jonathan Chao accept Medicare assignment?
Yes. Dr. Jonathan Chao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Chao 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.