Doctor profile · Federal record

Dr. William Stone, MD

Surgery Physician · Surgery Physician · Sonora, CA

  • NPI 1255505764
  • MIPS 82.3 / 100 · 2023
  • 18 yrs on file
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
900 Greenley RD
Sonora, CA 953705287
(605) 593-3688
Mailing address
18200 Old Wards Ferry Road
Sonora, CA 95370

Credentials & registration

NPPES · NUCC
NPI registered
April 2008 — 18 yrs on file
Profile last updated
April 30, 2022
Specialty taxonomy
208600000X — NUCC code
State licenses (2)
California #C167208 · South Dakota #8495

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255505764. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
71
Distinct HCPCS
3
Medicare allowed
$8,547
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 27 17 $80
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 24 16 $120
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 20 20 $175

In context: peer comparison

Among 2 peers in Sonora Surgery Physician, average services per provider: 559. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$89
Transactions
4
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Mdd US Operations, LLC 4 $88.94

By nature of payment

Food and Beverage
$89

Frequently asked questions

Auto-generated from federal data
What is Dr. William Stone's medical specialty?
Dr. William Stone practices Surgery Physician in Sonora, CA.
Where does Dr. William Stone practice?
Dr. William Stone practices at 900 Greenley RD, Sonora, CA 953705287. Office phone: 6055933688.
What is Dr. William Stone's NPI?
Dr. William Stone's National Provider Identifier (NPI) is 1255505764, issued by NPPES.
What procedures does Dr. William Stone commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.