MS. WENDY CRISTINA PERDOMO PENA M.D.
NPI 1659934412
Internal Medicine - Rheumatology in Mountain View, CA
About Ms. Wendy Cristina Perdomo Pena M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. WENDY CRISTINA PERDOMO PENA M.D. (NPI 1659934412) is an individual rheumatology provider in Mountain View, California, licensed in California (A201213) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 4
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
Ms. Wendy Cristina Perdomo Pena 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 Reassignment
Medicare enrollment records show Wendy Perdomo Pena reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 314 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 94040 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MOUNTAIN VIEW, CA 94040
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 Wendy Perdomo Pena's NPI number?
The NPI number for Wendy Perdomo Pena is 1659934412. It was assigned to this individual provider in the NPPES registry on April 17, 2019.
Where is Wendy Perdomo Pena located?
Wendy Perdomo Pena practices at 2495 Hospital Dr Ste 450, Mountain View, CA 94040. The listed phone number is (408) 871-3400.
What is Wendy Perdomo Pena's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Wendy Perdomo Pena enrolled in Medicare?
Yes. Wendy Perdomo Pena 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 organization bills Medicare for Wendy Perdomo Pena's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wendy Perdomo Pena reassigns Medicare benefits to El Camino Health Medical Network, LLC (San Jose, CA). The 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 Wendy Perdomo Pena'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 Wendy Perdomo Pena was last updated on October 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Ms. Wendy Cristina Perdomo Pena, M.D. · NPI 1659934412
Rheumatology physician in Mountain View, California. Individual provider, active in the CMS NPPES registry since April 17, 2019.
## Identity
- **NPI:** 1659934412 (Entity type: Individual)
- **Enumerated:** April 17, 2019
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** A201213 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2495 HOSPITAL DR STE 450, Mountain View, CA 94040-4171
- **Phone:** (408) 871-3400
## 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:** El Camino Health Medical Network, LLC (NPI 1164880761, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** October 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1659934412) · Data from the CMS NPPES public registry.