MAXWELL B. MERKOW MD, A MEDICAL CORPORATION
NPI 1598290769
Neurological Surgery in Walnut Creek, CA
About Maxwell B. Merkow Md, A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAXWELL B. MERKOW MD, A MEDICAL CORPORATION (NPI 1598290769) is a healthcare organization registered as a neurological surgery in Walnut Creek, California and active in the NPI registry since April 2017. The organization maintains a secondary practice location in Walnut Creek and lists Maxwell B Merkow, Owner/president, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Maxwell B. Merkow Md, A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Maxwell B. Merkow MD, A Medical Corporation, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Maxwell B. Merkow MD, A Medical Corporation's NPI number?
The NPI number for Maxwell B. Merkow MD, A Medical Corporation is 1598290769. It was assigned to this organization in the NPPES registry on April 26, 2017.
Where is Maxwell B. Merkow MD, A Medical Corporation located?
Maxwell B. Merkow MD, A Medical Corporation is located at 130 La Casa Via Bldg 2#110, Walnut Creek, CA 94598. The listed phone number is (925) 309-5155.
What is Maxwell B. Merkow MD, A Medical Corporation's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Maxwell B. Merkow MD, A Medical Corporation enrolled in Medicare?
Yes. Maxwell B. Merkow MD, A Medical Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Maxwell B. Merkow MD, A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Neurosurgery, reassign their Medicare billing to Maxwell B. Merkow MD, A Medical Corporation. A 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 the clinician's services. Of these, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Maxwell B. Merkow MD, A Medical Corporation was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Maxwell B. Merkow Md, A Medical Corporation · NPI 1598290769
Neurological Surgery organization in Walnut Creek, California. Organization record, active in the CMS NPPES registry since April 26, 2017.
## Identity
- **NPI:** 1598290769 (Entity type: Organization)
- **Enumerated:** April 26, 2017
- **Primary specialty:** Neurological Surgery · taxonomy 207T00000X
- **Organization subpart:** No
- **Authorized official:** Maxwell Merkow, OWNER/PRESIDENT
## Practice location
- **Address:** 130 LA CASA VIA BLDG 2#110, Walnut Creek, CA 94598-3082
- **Phone:** (925) 309-5155
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians (Neurosurgery) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 17, 2018
- **Other identifiers:** Other A141272 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1598290769) · Data from the CMS NPPES public registry.