Doctor profile · Federal record
Dr. John Turns, MD
Family Medicine Physician (CMS: Family Practice) · Sleep Medicine (Internal Medicine) Physician · Castro Valley, CA
- NPI 1942371588
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
22101 Redwood RD
Castro Valley, CA 945467107
(510) 582-0777 - Additional location
-
5601 Norris Canyon RD, Suite #140
San Ramon, CA 94583
(925) 830-0644
fax (925) 830-0868
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G044402
- Medicaid
- CA #00G444020
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942371588. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
8,696
Distinct HCPCS
10
Medicare allowed
$732,148
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 7,601 | 146 | $79 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 624 | 128 | $113 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 106 | 14 | $110 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 98 | 74 | $174 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 85 | 39 | $163 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 75 | 45 | $193 | |
99316 |
Nursing facility discharge management, more than 30 minutes | 34 | 33 | $103 | |
94010 |
Test to measure expiratory airflow and volume | 31 | 30 | $34 | |
93040 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician | 25 | 24 | $15 | |
99315 |
Nursing facility discharge day management, 30 minutes or less | 17 | 16 | $74 |
In context: peer comparison
Among 8 peers in Castro Valley Family Medicine Physician, average services per provider: 203. This provider delivers 43× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,576
Patients
379
Total drug cost
$97,258
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 438 | 70 | $7,622 |
| Amlodipine Besylate | Generic | 282 | 41 | $1,944 |
| Levothyroxine Sodium | Generic | 247 | 25 | $3,000 |
| Divalproex Sodium | Generic | 190 | 24 | $12,464 |
| Metoprolol Tartrate | Generic | 160 | 27 | $1,422 |
| Gabapentin | Generic | 149 | 24 | $2,605 |
| Quetiapine Fumarate | Generic | 147 | 19 | $5,988 |
| Metformin Hcl | Generic | 146 | 24 | $1,670 |
| Eliquis (Apixaban) | Brand | 141 | 14 | $41,933 |
| Furosemide | Generic | 129 | 19 | $789 |
Frequently asked questions
What is Dr. John Turns's medical specialty?
Dr. John Turns practices Family Medicine Physician in Castro Valley, CA.
Where does Dr. John Turns practice?
Dr. John Turns practices at 22101 Redwood RD, Castro Valley, CA 945467107. Office phone: 5105820777.
What is Dr. John Turns's NPI?
Dr. John Turns's National Provider Identifier (NPI) is 1942371588, issued by NPPES.
Does Dr. John Turns accept Medicare assignment?
Yes. Dr. John Turns accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Turns commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.