Doctor profile · Federal record
Dr. Charles Preston, M.D.
Sports Medicine (Orthopaedic Surgery) Physician (CMS: Orthopedic Surgery) · Walnut Creek, CA
- NPI 1558529479
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2625 Shadelands Dr
Walnut Creek, CA 945982512
(925) 939-8585
fax (925) 933-2709 - Additional location
-
5201 Norris Canyon RD Ste 300
San Ramon, CA 945835405 - Mailing address
-
Po Box 31396
Walnut Creek, CA 945988396
Credentials & registration
- NPI registered
- May 2008 — 18 yrs on file
- Profile last updated
- November 12, 2025
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207XX0005X — NUCC code
- State license (1)
- California #A99089
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558529479. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,275
Distinct HCPCS
10
Medicare allowed
$105,065
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 512 | 78 | $1 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 210 | 152 | $105 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 159 | 127 | $151 | |
73030 |
X-ray of shoulder, minimum of 2 views | 110 | 88 | $44 | |
20610 |
Aspiration and/or injection of fluid from large joint | 102 | 79 | $79 | |
73221 |
Mri scan of arm joint without contrast | 41 | 38 | $209 | |
73564 |
X-ray of knee, 4 or more views | 36 | 29 | $61 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 29 | 29 | $132 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $194 | |
29827 |
Repair of shoulder rotator cuff using an endoscope | 16 | 16 | $1,158 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 438. This provider delivers 2.9× the peer median.Open Payments
Industry payments received
All-time total
$4,668
Transactions
7
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Stryker Corporation | 2 | $4,556.76 | |
| Bioventus LLC | 2 | $38.21 | |
| Ferring Pharmaceuticals Inc. | 1 | $28.19 | |
| Orthofix Medical, Inc. | 1 | $24.27 | |
| TRICE MEDICAL, INC. | 1 | $20.95 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
19
Patients
14
Total drug cost
$65
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meloxicam | Generic | 19 | 14 | $65 |
Frequently asked questions
What is Dr. Charles Preston's medical specialty?
Dr. Charles Preston practices Sports Medicine (Orthopaedic Surgery) Physician in Walnut Creek, CA.
Where does Dr. Charles Preston practice?
Dr. Charles Preston practices at 2625 Shadelands Dr, Walnut Creek, CA 945982512. Office phone: 9259398585.
What is Dr. Charles Preston's NPI?
Dr. Charles Preston's National Provider Identifier (NPI) is 1558529479, issued by NPPES.
Does Dr. Charles Preston accept Medicare assignment?
Yes. Dr. Charles Preston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charles Preston commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.