Doctor profile · Federal record

Dr. Jeffrey Merz-Herrala, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · San Francisco, CA

  • NPI 1619505120
  • Accepts Medicare
  • 6 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
520 Illinois St
San Francisco, CA 941432501
(415) 353-9188
Additional location
1001 Potrero Ave. Bldg. 25 1St Floor
San Francisco, CA 941103518
(628) 206-8111
Additional location
1411 E 31St St
Oakland, CA 946021092
(612) 849-0040

Credentials & registration

NPPES · NUCC
NPI registered
March 2020 — 6 yrs on file
Profile last updated
September 23, 2025
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A184839

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619505120. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$30
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
TerSera Therapeutics LLC 1 $29.73

By nature of payment

Food and Beverage
$30

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jeffrey Merz-Herrala's medical specialty?
Dr. Jeffrey Merz-Herrala practices Emergency Medicine Physician in San Francisco, CA.
Where does Dr. Jeffrey Merz-Herrala practice?
Dr. Jeffrey Merz-Herrala practices at 520 Illinois St, San Francisco, CA 941432501. Office phone: 4153539188.
What is Dr. Jeffrey Merz-Herrala's NPI?
Dr. Jeffrey Merz-Herrala's National Provider Identifier (NPI) is 1619505120, issued by NPPES.
Does Dr. Jeffrey Merz-Herrala accept Medicare assignment?
Yes. Dr. Jeffrey Merz-Herrala accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.