Jeffrey Robert Merz-Herrala, MD
Emergency Medicine · San Francisco, CA
At a glance
520 Illinois St, San Francisco, CA 94143-2501
NPPES record updated Sep 23, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
520 Illinois StSan Francisco, CA 94143-2501
Additional reported practice locations
1411 E 31St StOakland, CA 946021092
Phone: 6128490040 1001 Potrero Ave. Bldg. 25 1St Floor
San Francisco, CA 941103518
Phone: 6282068111
Education & affiliations
- Medical / professional school
- Harvard Medical School
- Graduation year
- 2020
- CMS specialties
- Anesthesiology · Emergency Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
- Permanente Medical Group Inc
- University Anesthesia Medical Group
- University Of California San Francisco
- University Of California Sfgh Medical Group
Reported hospital affiliations
- Ucsf Medical Center San Francisco, CA
- Zuckerberg San Francisco General Hosp & Trauma Ctr San Francisco, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $218.89 |
Reporting companies
| Company | Amount |
|---|---|
| SPR THERAPEUTICS, INC | $162.18 |
| MML US, INC. | $56.71 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Emergency Medicine
- Taxonomy code
- 207P00000X
- Enumeration date
- Mar 30, 2020
- Record updated
- Sep 23, 2025
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- JEFFREY ROBERT HERRALA
- Reported credentials
- MD
Reported taxonomies and licenses
207P00000X · Primary
License reported: A184839 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
520 Illinois StSan Francisco, CA 94143-2501
- Phone
- (415) 353-9188
Mailing address
520 ILLINOIS STSAN FRANCISCO, CA 941432501
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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