DOUGLAS LANGE M.D.
NPI 1003865064
Orthopaedic Surgery in Walnut Creek, CA
About Douglas Lange M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DOUGLAS LANGE M.D. (NPI 1003865064) is an individual orthopaedic surgery provider in Walnut Creek, California, licensed in California (C34891) and active in the NPI registry since May 2006. 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)
Douglas Lange M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Douglas Lange reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 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 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.
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 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 Douglas Lange's NPI number?
The NPI number for Douglas Lange is 1003865064. It was assigned to this individual provider in the NPPES registry on May 8, 2006.
Where is Douglas Lange located?
Douglas Lange practices at 2405 Shadelands Dr, Walnut Creek, CA 94598. The listed phone number is (925) 939-8585.
What is Douglas Lange's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Douglas Lange enrolled in Medicare?
Yes. Douglas Lange is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Douglas Lange's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Lange reassigns Medicare benefits to John Muir Trauma Physicians Billing Service (Walnut Creek, 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 Douglas Lange'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 Douglas Lange was last updated on September 17, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Douglas Lange, M.D. · NPI 1003865064
Orthopaedic Surgery physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since May 8, 2006.
## Identity
- **NPI:** 1003865064 (Entity type: Individual)
- **Enumerated:** May 8, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** C34891 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2405 SHADELANDS DR, Walnut Creek, CA 94598-2444
- **Phone:** (925) 939-8585 · **Fax:** (925) 933-2709
## 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:** John Muir Trauma Physicians Billing Service (NPI 1962551861, Walnut Creek, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 17, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1003865064) · Data from the CMS NPPES public registry.