MELANIE R. DE GUZMAN MD
NPI 1306918057
Obstetrics & Gynecology in Milpitas, CA
About Melanie R. De Guzman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MELANIE R. DE GUZMAN MD (NPI 1306918057) is an individual obstetrics & gynecology provider in Milpitas, California, licensed in California (A83802) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
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
Melanie R. De Guzman 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 Reassignment
Medicare enrollment records show Melanie De Guzman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 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 95035 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.
MILPITAS, CA 95035
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 Melanie De Guzman's NPI number?
The NPI number for Melanie De Guzman is 1306918057. It was assigned to this individual provider in the NPPES registry on November 15, 2006. The provider is also known as Melanie De Guzman Zarnegar.
Where is Melanie De Guzman located?
Melanie De Guzman practices at 770 E Calaveras Blvd, Milpitas, CA 95035. The listed phone number is (650) 945-2900.
What is Melanie De Guzman's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Melanie De Guzman enrolled in Medicare?
Yes. Melanie De Guzman 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 Melanie De Guzman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melanie De Guzman reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Melanie De Guzman'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 Melanie De Guzman was last updated on January 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Melanie R. De Guzman, MD · NPI 1306918057
Obstetrics & Gynecology physician in Milpitas, California. Individual provider, active in the CMS NPPES registry since November 15, 2006.
## Identity
- **NPI:** 1306918057 (Entity type: Individual)
- **Enumerated:** November 15, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A83802 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 770 E CALAVERAS BLVD, Milpitas, CA 95035-5491
- **Phone:** (650) 945-2900
## 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:** Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** January 10, 2022
- **Other identifiers:** Medicaid 00A838020 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1306918057) · Data from the CMS NPPES public registry.