DR. JONATHAN EFRAM VOLK MD
NPI 1366622698
Internal Medicine in Stanford, CA
About Dr. Jonathan Efram Volk Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JONATHAN EFRAM VOLK MD (NPI 1366622698) is an individual internal medicine provider in Stanford, California, licensed in California (A101242) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2006).
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
Dr. Jonathan Efram Volk 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 Reassignment
Medicare enrollment records show Jonathan Volk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redwood City, CA 94063
- 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 94305 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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Jonathan Volk's NPI number?
The NPI number for Jonathan Volk is 1366622698. It was assigned to this individual provider in the NPPES registry on November 3, 2007.
Where is Jonathan Volk located?
Jonathan Volk practices at 300 Pasteur Dr S101, Stanford, CA 94305. The listed phone number is (415) 730-2764.
What is Jonathan Volk's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jonathan Volk enrolled in Medicare?
Yes. Jonathan Volk 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 Jonathan Volk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Volk reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Jonathan Volk'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 Jonathan Volk was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Jonathan Efram Volk, MD · NPI 1366622698
Internal Medicine physician in Stanford, California. Individual provider, active in the CMS NPPES registry since November 3, 2007.
## Identity
- **NPI:** 1366622698 (Entity type: Individual)
- **Enumerated:** November 3, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A101242 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, S101, Stanford, CA 94305-2200
- **Phone:** (415) 730-2764
## 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 1639252604, Redwood City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2006
## Record status
- **NPPES last updated:** December 15, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1366622698) · Data from the CMS NPPES public registry.