DR. ERIN GREGG NEWMAN M.D.
NPI 1043542871
Internal Medicine in Orange, CA
About Dr. Erin Gregg Newman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ERIN GREGG NEWMAN M.D. (NPI 1043542871) is an individual internal medicine provider in Orange, California, licensed in California (A 110997) and active in the NPI registry since February 2010. She is enrolled in Medicare PECOS, maintains a secondary practice location in Madera, and is a graduate of University Of Southern California Keck School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses 2
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. Erin Gregg Newman 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 Reassignments
3Medicare enrollment records show Erin Newman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 525 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Valley Childrens Medical Group
- 387 clinicians in this Medicare group
Lihue, HI 96766
- Reassigned Medicare billing, Hawaii enrollment
- 298 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 6
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ORANGE, CA 92868
ORANGE, CA 92868
ORANGE, CA 92868
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 Erin Newman's NPI number?
The NPI number for Erin Newman is 1043542871. It was assigned to this individual provider in the NPPES registry on February 3, 2010.
Where is Erin Newman located?
Erin Newman practices at 101 The City Dr S Bldg 29, Orange, CA 92868. The listed phone number is (714) 456-7002.
What is Erin Newman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Erin Newman enrolled in Medicare?
Yes. Erin Newman 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 Erin Newman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Newman reassigns Medicare benefits to 3 organizations: Uc Regents (Orange, CA), Valley Children's Medical Group (Modesto, CA) and Kauai Medical Clinic (Lihue, HI). 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 Erin Newman'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 Erin Newman was last updated on March 21, 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. Erin Gregg Newman, M.D. · NPI 1043542871
Internal Medicine physician in Orange, California. Individual provider, active in the CMS NPPES registry since February 3, 2010.
## Identity
- **NPI:** 1043542871 (Entity type: Individual)
- **Enumerated:** February 3, 2010
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A 110997 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S BLDG 29, Orange, CA 92868-3201
- **Phone:** (714) 456-7002
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Uc Regents (NPI 1003864174, Orange, CA); Valley Children's Medical Group (NPI 1437555265, Modesto, CA); Kauai Medical Clinic (NPI 1376596643, Lihue, HI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Southern California Keck School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** March 21, 2023
- **Other identifiers:** Medicaid 1043542871 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1043542871) · Data from the CMS NPPES public registry.