DR. VERONIKA SIMANEK M.D.
NPI 1174556500
Internal Medicine in Walnut Creek, CA
About Dr. Veronika Simanek M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. VERONIKA SIMANEK M.D. (NPI 1174556500) is an individual internal medicine provider in Walnut Creek, California, licensed in California (A74252) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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. Veronika Simanek 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
2Medicare enrollment records show Veronika Simanek reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 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 2
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 94598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
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 Veronika Simanek's NPI number?
The NPI number for Veronika Simanek is 1174556500. It was assigned to this individual provider in the NPPES registry on July 9, 2006.
Where is Veronika Simanek located?
Veronika Simanek practices at 2255 Ygnacio Valley Rd Suite A, Walnut Creek, CA 94598. The listed phone number is (925) 937-9984.
What is Veronika Simanek's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Veronika Simanek enrolled in Medicare?
Yes. Veronika Simanek 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 Veronika Simanek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Veronika Simanek reassigns Medicare benefits to 2 organizations: John Muir Trauma Physicians Billing Service (Walnut Creek, CA) and John Muir Physician Network (Walnut Creek, CA). 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 Veronika Simanek'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 Veronika Simanek was last updated on June 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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. Veronika Simanek, M.D. · NPI 1174556500
Internal Medicine physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since July 9, 2006.
## Identity
- **NPI:** 1174556500 (Entity type: Individual)
- **Enumerated:** July 9, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A74252 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2255 YGNACIO VALLEY RD, SUITE A, Walnut Creek, CA 94598-3343
- **Phone:** (925) 937-9984 · **Fax:** (925) 933-4886
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): John Muir Trauma Physicians Billing Service (NPI 1962551861, Walnut Creek, CA); John Muir Physician Network (NPI 1841407665, Walnut Creek, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** June 21, 2012
- **Other identifiers:** Medicare PIN P00044535 (CA); Medicaid 00A742520 (CA); Medicare UPIN H78967 (CA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1174556500) · Data from the CMS NPPES public registry.