Doctor profile · Federal record
Dr. William Tomkiewicz, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · San Francisco, CA
- NPI 1962580571
- Accepts Medicare
- 44 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2200 Ofarrell St
San Francisco, CA 941153357
(415) 833-2000 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123466
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- June 27, 2025
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A43022
- Medicaid
- CA #00A430220
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1962580571. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
284
Distinct HCPCS
4
Medicare allowed
$31,561
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 135 | 129 | $102 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 119 | 118 | $126 | |
87635 |
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | 17 | 17 | $50 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 13 | 13 | $145 |
In context: peer comparison
Among 87 peers in San Francisco Emergency Medicine Physician, average services per provider: 91. This provider delivers 3.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
31
Patients
31
Total drug cost
$341
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 18 | 18 | $214 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 13 | 13 | $127 |
Frequently asked questions
What is Dr. William Tomkiewicz's medical specialty?
Dr. William Tomkiewicz practices Emergency Medicine Physician in San Francisco, CA.
Where does Dr. William Tomkiewicz practice?
Dr. William Tomkiewicz practices at 2200 Ofarrell St, San Francisco, CA 941153357. Office phone: 4158332000.
What is Dr. William Tomkiewicz's NPI?
Dr. William Tomkiewicz's National Provider Identifier (NPI) is 1962580571, issued by NPPES.
Does Dr. William Tomkiewicz accept Medicare assignment?
Yes. Dr. William Tomkiewicz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Tomkiewicz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (HCPCS 87635). Source: CMS Medicare Physician & Other Practitioners file.