DR. PHILIS DENISE RANSOM M.D.
NPI 1396914545
Obstetrics & Gynecology in San Bernardino, CA
About Dr. Philis Denise Ransom M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PHILIS DENISE RANSOM M.D. (NPI 1396914545) is an individual obstetrics & gynecology provider in San Bernardino, California, licensed in California (A100123) and active in the NPI registry since February 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Highland, and is a graduate of Loma Linda University School Of Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Philis Denise Ransom 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 Philis Ransom reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fontana, CA 92336
- Reassigned Medicare billing, California enrollment
- 49 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 92405 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.
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 Philis Ransom's NPI number?
The NPI number for Philis Ransom is 1396914545. It was assigned to this individual provider in the NPPES registry on February 21, 2008.
Where is Philis Ransom located?
Philis Ransom practices at 742 W Highland Ave, San Bernardino, CA 92405. The listed phone number is (909) 881-7320.
What is Philis Ransom's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Philis Ransom enrolled in Medicare?
Yes. Philis Ransom 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 Philis Ransom's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philis Ransom reassigns Medicare benefits to San Marcos Medical Group Inc (Fontana, 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 Philis Ransom'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 Philis Ransom was last updated on June 29, 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.
# Dr. Philis Denise Ransom, M.D. · NPI 1396914545
Obstetrics & Gynecology physician in San Bernardino, California. Individual provider, active in the CMS NPPES registry since February 21, 2008.
## Identity
- **NPI:** 1396914545 (Entity type: Individual)
- **Enumerated:** February 21, 2008
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A100123 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 742 W HIGHLAND AVE, San Bernardino, CA 92405
- **Phone:** (909) 881-7320 · **Fax:** (909) 881-7330
## 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:** San Marcos Medical Group Inc (NPI 1447446448, Fontana, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** June 29, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1396914545) · Data from the CMS NPPES public registry.