Doctor profile · Federal record
Dr. William Falk, MSN, APRN, BC
Family Nurse Practitioner (CMS: Nurse Practitioner) · San Francisco, CA
- NPI 1609942861
- Accepts Medicare
- MIPS 31.8 / 100 · 2023
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
46 Cragmont Ave
San Francisco, CA 941161308
(415) 823-5131
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- September 25, 2012
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- California #14427
- Medicaid
- CA #NP0144270
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609942861. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,906
Distinct HCPCS
8
Medicare allowed
$167,633
| 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 | 1,111 | 292 | $72 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 424 | 186 | $104 | |
99305 |
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 154 | 154 | $128 | |
G0407 |
Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth | 82 | 61 | $69 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 57 | 56 | $175 | |
G0425 |
Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealth | 37 | 37 | $87 | |
G0408 |
Follow-up inpatient consultation, complex, physicians typically spend 35 minutes communicating with the patient via telehealth | 28 | 24 | $100 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 13 | 13 | $148 |
In context: peer comparison
Among 77 peers in San Francisco Family Nurse Practitioner, average services per provider: 64. This provider delivers 30× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
455
Patients
53
Total drug cost
$17,139
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Donepezil Hcl | Generic | 151 | 26 | $2,447 |
| Escitalopram Oxalate | Generic | 61 | 12 | $604 |
| Mirtazapine | Generic | 41 | 15 | $1,166 |
| Aripiprazole | Generic | 37 | 0 | $7,261 |
| Quetiapine Fumarate | Generic | 35 | 0 | $604 |
| Duloxetine Hcl | Generic | 25 | 0 | $969 |
| Valproic Acid (Valproic Acid (As Sodium Salt)) | Brand | 22 | 0 | $382 |
| Lorazepam | Generic | 21 | 0 | $162 |
| Divalproex Sodium ER (Divalproex Sodium) | Brand | 19 | 0 | $1,698 |
| Olanzapine | Generic | 18 | 0 | $522 |
Frequently asked questions
What is Dr. William Falk's medical specialty?
Dr. William Falk practices Family Nurse Practitioner in San Francisco, CA.
Where does Dr. William Falk practice?
Dr. William Falk practices at 46 Cragmont Ave, San Francisco, CA 941161308. Office phone: 4158235131.
What is Dr. William Falk's NPI?
Dr. William Falk's National Provider Identifier (NPI) is 1609942861, issued by NPPES.
Does Dr. William Falk accept Medicare assignment?
Yes. Dr. William Falk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Falk 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); Initial nursing facility care with moderate level of medical decision making (HCPCS 99305). Source: CMS Medicare Physician & Other Practitioners file.