Doctor profile · Federal record
Dr. Douglas Zhang, M.D.
Geriatric Medicine (Family Medicine) Physician (CMS: General Practice) · San Leandro, CA
- NPI 1023074341
- Accepts Medicare
- MIPS 20.5 / 100 · 2023
- 32 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
13851 E 14Th St
San Leandro, CA 945782628
(510) 351-2100
fax (510) 357-3389
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- March 23, 2011
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207QG0300X — NUCC code
- State license (1)
- California #A63200
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023074341. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,484
Distinct HCPCS
10
Medicare allowed
$529,287
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,603 | 631 | $137 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 876 | 376 | $99 | |
99454 |
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 820 | 141 | $67 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 666 | 171 | $73 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 462 | 255 | $98 | |
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 146 | 82 | $56 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 132 | 39 | $59 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 129 | 129 | $153 | |
G0008 |
Administration of influenza virus vaccine | 100 | 100 | $29 | |
90662 |
Influenza vaccine split virus, preservative free | 96 | 96 | $54 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 288. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$1,612
Transactions
70
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk Inc | 13 | $202.95 | |
| AstraZeneca Pharmaceuticals LP | 8 | $196.25 | |
| Amgen Inc. | 7 | $147.92 | |
| PFIZER INC. | 7 | $144.88 | |
| ABBVIE INC. | 6 | $131.03 | |
| Lilly USA, LLC | 5 | $123.95 | |
| GlaxoSmithKline, LLC. | 5 | $110.22 | |
| Mylan Specialty L.P. | 3 | $96.19 | |
| Janssen Pharmaceuticals, Inc | 3 | $78.65 | |
| Astellas Pharma US Inc | 3 | $68.30 | |
| Merck Sharp & Dohme LLC | 2 | $61.76 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 3 | $58.41 | |
| Dexcom, Inc. | 2 | $44.44 | |
| IDORSIA PHARMACEUTICALS US INC | 2 | $42.23 | |
| Abbott Laboratories | 1 | $25.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
5,064
Patients
1,503
Total drug cost
$84,690
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 809 | 235 | $13,712 |
| Amlodipine Besylate | Generic | 578 | 173 | $7,972 |
| Metformin Hcl | Generic | 526 | 152 | $7,483 |
| Losartan Potassium | Generic | 521 | 150 | $10,061 |
| Metoprolol Succinate | Generic | 333 | 101 | $7,805 |
| Lisinopril | Generic | 325 | 95 | $3,618 |
| Levothyroxine Sodium | Generic | 299 | 79 | $5,626 |
| Hydrochlorothiazide | Generic | 244 | 72 | $1,397 |
| Simvastatin | Generic | 229 | 67 | $3,004 |
| Omeprazole | Generic | 227 | 74 | $5,375 |
Hospital affiliations
Frequently asked questions
What is Dr. Douglas Zhang's medical specialty?
Dr. Douglas Zhang practices Geriatric Medicine (Family Medicine) Physician in San Leandro, CA.
Where does Dr. Douglas Zhang practice?
Dr. Douglas Zhang practices at 13851 E 14Th St, San Leandro, CA 945782628. Office phone: 5103512100.
What is Dr. Douglas Zhang's NPI?
Dr. Douglas Zhang's National Provider Identifier (NPI) is 1023074341, issued by NPPES.
Does Dr. Douglas Zhang accept Medicare assignment?
Yes. Dr. Douglas Zhang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Zhang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99442); Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (HCPCS 99454). Source: CMS Medicare Physician & Other Practitioners file.