STACY PORTER MD
NPI 1659647386
Internal Medicine in Menlo Park, CA
About Stacy Porter Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STACY PORTER MD (NPI 1659647386) is an individual internal medicine provider in Menlo Park, California, licensed in California (A126790) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (2012).
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
Stacy Porter Md 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
2Medicare enrollment records show Stacy Porter reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Newark, CA 94560
- Reassigned Medicare billing, California enrollment
- 435 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94025 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
MENLO PARK, CA 94025
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 Stacy Porter's NPI number?
The NPI number for Stacy Porter is 1659647386. It was assigned to this individual provider in the NPPES registry on March 27, 2012.
Where is Stacy Porter located?
Stacy Porter practices at 1300 Crane St, Menlo Park, CA 94025. The listed phone number is (650) 498-7080.
What is Stacy Porter's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Stacy Porter enrolled in Medicare?
Yes. Stacy 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 Stacy Porter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stacy Porter reassigns Medicare benefits to 2 organizations: Stanford Health Care (Stanford, CA) and University Healthcare Alliance (Newark, 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 Stacy 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 Stacy Porter was last updated on August 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# Stacy Porter, MD · NPI 1659647386
Internal Medicine physician in Menlo Park, California. Individual provider, active in the CMS NPPES registry since March 27, 2012.
## Identity
- **NPI:** 1659647386 (Entity type: Individual)
- **Enumerated:** March 27, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A126790 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 CRANE ST, Menlo Park, CA 94025-4260
- **Phone:** (650) 498-7080 · **Fax:** (650) 324-6279
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Stanford Health Care (NPI 1437292927, Stanford, CA); University Healthcare Alliance (NPI 1760531198, Newark, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2012
## Record status
- **NPPES last updated:** August 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1659647386) · Data from the CMS NPPES public registry.