PHILIP OH DO
NPI 1841949641
Family Medicine in Antioch, CA
About Philip Oh Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILIP OH DO (NPI 1841949641) is an individual family medicine provider in Antioch, California, licensed in California (20A23399) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of William Carey University College Of Osteopathic Medicine (2022).
NPPES Registry Identity
Specialties & Licenses
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
Philip Oh Do 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 Philip Oh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- 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 94509 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.
ANTIOCH, CA 94509
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 Philip Oh's NPI number?
The NPI number for Philip Oh is 1841949641. It was assigned to this individual provider in the NPPES registry on March 21, 2022.
Where is Philip Oh located?
Philip Oh practices at 3400 Delta Fair Blvd, Antioch, CA 94509. The listed phone number is (925) 813-6500.
What is Philip Oh's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Philip Oh enrolled in Medicare?
Yes. Philip Oh 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 Philip Oh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philip Oh reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, 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 Philip Oh'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 Philip Oh was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# Philip Oh, DO · NPI 1841949641
Family Medicine physician in Antioch, California. Individual provider, active in the CMS NPPES registry since March 21, 2022.
## Identity
- **NPI:** 1841949641 (Entity type: Individual)
- **Enumerated:** March 21, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 20A23399 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 DELTA FAIR BLVD, Antioch, CA 94509-4004
- **Phone:** (925) 813-6500
## 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 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** William Carey University College Of Osteopathic Medicine, class of 2022
## Record status
- **NPPES last updated:** August 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1841949641) · Data from the CMS NPPES public registry.