DAVID L. MADNICK MD
NPI 1770102535
Internal Medicine - Cardiovascular Disease in Walnut Creek, CA
About David L. Madnick Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID L. MADNICK MD (NPI 1770102535) is an individual cardiovascular disease provider in Walnut Creek, California, licensed in California (A185810) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS.
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 (PECOS)
David L. Madnick Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show David Madnick reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- 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 94596 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 2
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 David Madnick's NPI number?
The NPI number for David Madnick is 1770102535. It was assigned to this individual provider in the NPPES registry on April 13, 2020.
Where is David Madnick located?
David Madnick practices at 1425 S Main St, Walnut Creek, CA 94596. The listed phone number is (925) 295-4050.
What is David Madnick's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is David Madnick enrolled in Medicare?
Yes. David Madnick is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for David Madnick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Madnick reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 David Madnick'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 David Madnick was last updated on June 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# David L. Madnick, MD · NPI 1770102535
Cardiovascular Disease physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since April 13, 2020.
## Identity
- **NPI:** 1770102535 (Entity type: Individual)
- **Enumerated:** April 13, 2020
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** A185810 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1425 S MAIN ST, Walnut Creek, CA 94596-5318
- **Phone:** (925) 295-4050
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1770102535) · Data from the CMS NPPES public registry.