MELISSA LOUISE WESTERMANN MD
NPI 1760730758
Obstetrics & Gynecology - Maternal & Fetal Medicine in San Diego, CA
About Melissa Louise Westermann Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MELISSA LOUISE WESTERMANN MD (NPI 1760730758) is an individual maternal & fetal medicine provider in San Diego, California, licensed in California (A130149) and active in the NPI registry since August 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Orange, and is a graduate of University Of California, Irvine, California College Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Melissa Louise Westermann 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
5Medicare enrollment records show Melissa Westermann reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 562 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 577 clinicians in this Medicare group
Murrieta, CA 92563
- Reassigned Medicare billing, California enrollment
- 240 clinicians in this Medicare group
Costa Mesa, CA 92627
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: University Of California Irvine
- 255 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 149 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 92123 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.
SAN DIEGO, CA 92123
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 Melissa Westermann's NPI number?
The NPI number for Melissa Westermann is 1760730758. It was assigned to this individual provider in the NPPES registry on August 22, 2012.
Where is Melissa Westermann located?
Melissa Westermann practices at 7910 Frost St, San Diego, CA 92123. The listed phone number is (858) 966-6710.
What is Melissa Westermann's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Melissa Westermann enrolled in Medicare?
Yes. Melissa Westermann 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 Melissa Westermann's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Westermann reassigns Medicare benefits to 5 organizations: Rady Children's Hospital San Diego (San Diego, CA), Centro De Salud De La Comunidad De San Ysidro,inc (San Diego, CA), United Medical Doctors (Murrieta, CA), Uc Irvine Health Cancer Center, Newport Pacific Medical Center (Costa Mesa, CA) and Regents Of The University Of California (Orange, 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 Melissa Westermann'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 Melissa Westermann was last updated on August 7, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Melissa Louise Westermann, MD · NPI 1760730758
Maternal & Fetal Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since August 22, 2012.
## Identity
- **NPI:** 1760730758 (Entity type: Individual)
- **Enumerated:** August 22, 2012
- **Primary specialty:** Obstetrics & Gynecology - Maternal & Fetal Medicine · taxonomy 207VM0101X
- **State license:** A130149 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 7910 FROST ST, San Diego, CA 92123
- **Phone:** (858) 966-6710
## 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): Rady Children's Hospital San Diego (NPI 1669617197, San Diego, CA); Centro De Salud De La Comunidad De San Ysidro,inc (NPI 1962177873, San Diego, CA); United Medical Doctors (NPI 1770559981, Murrieta, CA); Uc Irvine Health Cancer Center, Newport Pacific Medical Center (NPI 1558783696, Costa Mesa, CA); Regents Of The University Of California (NPI 1356304034, Orange, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2012
## Record status
- **NPPES last updated:** August 7, 2019
---
Source: [NPI Profile](https://npiprofile.com/npi/1760730758) · Data from the CMS NPPES public registry.