JESUS AARON RAMIREZ MD
NPI 1528697570
Internal Medicine in Stanford, CA
About Jesus Aaron Ramirez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JESUS AARON RAMIREZ MD (NPI 1528697570) is an individual internal medicine provider in Stanford, California, licensed in California (A207242) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with University Of Cincinnati Medical Center, Llc, and maintains a secondary practice location in Cincinnati.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
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
Jesus Aaron Ramirez 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 Jesus Ramirez 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
Cincinnati, OH 45219
- Reassigned Medicare billing, Ohio enrollment
- 2,038 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 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Cincinnati Medical Center, LLC
Acute Care Hospitals · Cincinnati, OHWest Chester Hospital
Acute Care Hospitals · West Chester, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94305 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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Jesus Ramirez's NPI number?
The NPI number for Jesus Ramirez is 1528697570. It was assigned to this individual provider in the NPPES registry on April 2, 2020.
Where is Jesus Ramirez located?
Jesus Ramirez practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Jesus Ramirez's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jesus Ramirez enrolled in Medicare?
Yes. Jesus Ramirez 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 Jesus Ramirez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jesus Ramirez reassigns Medicare benefits to 2 organizations: Stanford Health Care (Stanford, CA) and University Of Cincinnati Physicians Company, LLC (Cincinnati, OH). 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 Jesus Ramirez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jesus Ramirez accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, CareSource and MedMutual list Jesus Ramirez as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Jesus Ramirez affiliated with any hospitals?
According to CMS data, Jesus Ramirez is affiliated with University Of Cincinnati Medical Center, LLC and West Chester Hospital.
When was this NPI record last updated?
The NPPES record for Jesus Ramirez was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Jesus Aaron Ramirez, MD · NPI 1528697570
Internal Medicine physician in Stanford, California. Individual provider, active in the CMS NPPES registry since April 2, 2020.
## Identity
- **NPI:** 1528697570 (Entity type: Individual)
- **Enumerated:** April 2, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A207242 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-4000
## 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 Of Cincinnati Physicians Company, LLC (NPI 1801840434, Cincinnati, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Virginia Commonwealth University, School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** August 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1528697570) · Data from the CMS NPPES public registry.