EVELYN PORTER M.D.
NPI 1710121744
Emergency Medicine in San Francisco, CA
About Evelyn Porter M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EVELYN PORTER M.D. (NPI 1710121744) is an individual emergency medicine provider in San Francisco, California, licensed in California (A111665) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Evelyn Porter M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Evelyn Porter reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Evelyn Porter's NPI number?
The NPI number for Evelyn Porter is 1710121744. It was assigned to this individual provider in the NPPES registry on April 21, 2009.
Where is Evelyn Porter located?
Evelyn Porter practices at 505 Parnassus Ave Room L-126, San Francisco, CA 94143. The listed phone number is (415) 353-1634.
What is Evelyn Porter's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Evelyn Porter enrolled in Medicare?
Yes. Evelyn Porter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Evelyn Porter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Evelyn Porter reassigns Medicare benefits to 5 organizations: Regents Of The University Of California (San Francisco, CA), Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California Sfgh Medical Group (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Evelyn Porter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Evelyn Porter was last updated on June 25, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Evelyn Porter, M.D. · NPI 1710121744
Emergency Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 21, 2009.
## Identity
- **NPI:** 1710121744 (Entity type: Individual)
- **Enumerated:** April 21, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A111665 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 505 PARNASSUS AVE, ROOM L-126, San Francisco, CA 94143-0208
- **Phone:** (415) 353-1634
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1376613943, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** June 25, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1710121744) · Data from the CMS NPPES public registry.