Doctor profile · Federal record
Dr. Nathan Teismann, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · San Francisco, CA
- NPI 1548459282
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
505 Parnassus Ave, UCSF Dept of Emergency Medicine L-126
San Francisco, CA 941430208
(415) 609-8195
Credentials & registration
- NPI registered
- October 2007 — 19 yrs on file
- Profile last updated
- January 13, 2011
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A95888
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1548459282. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
407
Distinct HCPCS
5
Medicare allowed
$53,247
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 162 | 154 | $175 | |
99284 |
Emergency department visit with moderate level of medical decision making | 108 | 106 | $121 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 73 | 69 | $8 | |
99291 |
Critical care, first 30-74 minutes | 46 | 45 | $214 | |
99283 |
Emergency department visit with low level of medical decision making | 18 | 16 | $71 |
In context: peer comparison
Among 87 peers in this city , average services per provider: 91. This provider delivers 4.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
71
Patients
71
Total drug cost
$657
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 32 | 32 | $239 |
| Doxycycline Hyclate | Generic | 20 | 20 | $353 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 19 | 19 | $66 |
Frequently asked questions
What is Dr. Nathan Teismann's medical specialty?
Dr. Nathan Teismann practices Emergency Medicine Physician in San Francisco, CA.
Where does Dr. Nathan Teismann practice?
Dr. Nathan Teismann practices at 505 Parnassus Ave, San Francisco, CA 941430208. Office phone: 4156098195.
What is Dr. Nathan Teismann's NPI?
Dr. Nathan Teismann's National Provider Identifier (NPI) is 1548459282, issued by NPPES.
Does Dr. Nathan Teismann accept Medicare assignment?
Yes. Dr. Nathan Teismann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Teismann commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.