Doctor profile · Federal record
Dr. William Deardorff
Geriatric Medicine (Internal Medicine) Physician (CMS: Geriatric Medicine) · Student in an Organized Health Care Education/Training Program · San Francisco, CA
- NPI 1003348830
- Accepts Medicare
- MIPS 70.8 / 100 · 2023
- 9 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
505 Parnassus Ave, 15 Long
San Francisco, CA 94143
(415) 406-1417
fax (415) 514-8192
Credentials & registration
- NPI registered
- March 2017 — 9 yrs on file
- Profile last updated
- July 15, 2024
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207RG0300X — NUCC code
- State license (1)
- California #A169642
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003348830. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
413
Distinct HCPCS
8
Medicare allowed
$55,100
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 84 | 62 | $174 | |
G0317 |
Prolonged nursing facility evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualifi | 82 | 39 | $34 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 60 | 54 | $206 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 52 | 30 | $132 | |
99316 |
Nursing facility discharge management, more than 30 minutes | 52 | 52 | $148 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 32 | 19 | $88 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 27 | 20 | $122 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 24 | 24 | $193 |
In context: peer comparison
Among 11 peers in this city , average services per provider: 79. This provider delivers 5.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
268
Patients
78
Total drug cost
$3,175
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 29 | 29 | $211 |
| Atorvastatin Calcium | Generic | 25 | 22 | $191 |
| Spironolactone | Generic | 24 | 0 | $128 |
| Mirtazapine | Generic | 21 | 0 | $388 |
| Amlodipine Besylate | Generic | 19 | 15 | $116 |
| Carvedilol | Generic | 18 | 0 | $145 |
| Methimazole | Generic | 18 | 0 | $395 |
| Furosemide | Generic | 17 | 0 | $73 |
| Omeprazole | Generic | 17 | 0 | $167 |
| Metformin Hcl | Generic | 16 | 0 | $120 |
Hospital affiliations
Frequently asked questions
What is Dr. William Deardorff's medical specialty?
Dr. William Deardorff practices Geriatric Medicine (Internal Medicine) Physician in San Francisco, CA.
Where does Dr. William Deardorff practice?
Dr. William Deardorff practices at 505 Parnassus Ave, San Francisco, CA 94143. Office phone: 4154061417.
What is Dr. William Deardorff's NPI?
Dr. William Deardorff's National Provider Identifier (NPI) is 1003348830, issued by NPPES.
Does Dr. William Deardorff accept Medicare assignment?
Yes. Dr. William Deardorff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Deardorff commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with high level of medical decision making (HCPCS 99310); Prolonged nursing facility evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualifi (HCPCS G0317); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.