DR. MELISSA AMORITA BIEWENGA MD
NPI 1700147352
General Practice in San Diego, CA
About Dr. Melissa Amorita Biewenga Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MELISSA AMORITA BIEWENGA MD (NPI 1700147352) is an individual general practice provider in San Diego, California, licensed in California (A122243) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Denver, and is a graduate of Drexel University College Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 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
Dr. Melissa Amorita Biewenga 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 Melissa Biewenga reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1023425972 (California)
- 13,921 clinicians in this Medicare group
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 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.
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 92120
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 Biewenga's NPI number?
The NPI number for Melissa Biewenga is 1700147352. It was assigned to this individual provider in the NPPES registry on May 30, 2012. The provider is also known as Melissa Roth.
Where is Melissa Biewenga located?
Melissa Biewenga practices at 4405 Vandever Ave, San Diego, CA 92120. The listed phone number is (800) 290-5000.
What is Melissa Biewenga's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Melissa Biewenga enrolled in Medicare?
Yes. Melissa Biewenga 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 Biewenga's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Biewenga reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (San Diego, CA) and Colorado Permanente Medical Group, P.C. (Denver, CO). 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 Biewenga'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 Biewenga was last updated on October 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Melissa Amorita Biewenga, MD · NPI 1700147352
General Practice physician in San Diego, California. Individual provider, active in the CMS NPPES registry since May 30, 2012.
## Identity
- **NPI:** 1700147352 (Entity type: Individual)
- **Enumerated:** May 30, 2012
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** A122243 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4405 VANDEVER AVE, San Diego, CA 92120-3315
- **Phone:** (800) 290-5000
## 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): Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA); Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2011
## Record status
- **NPPES last updated:** October 23, 2023
- **Other identifiers:** Other 029468 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1700147352) · Data from the CMS NPPES public registry.