MARSHALL ALLEN WILLIAMS II DDS
NPI 1649962937
Dentist - General Practice in Montgomery, AL
About Marshall Allen Williams Ii Dds NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARSHALL ALLEN WILLIAMS II DDS (NPI 1649962937) is an individual general practice provider in Montgomery, Alabama, licensed in Alabama (D.007308-C1) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS and maintains a secondary practice location in Montgomery.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marshall Allen Williams Ii Dds is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marshall Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Montgomery, AL 36108
- Reassigned Medicare billing, Alabama enrollment
- 31 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 36108 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.
MONTGOMERY, AL 36108
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 Marshall Williams's NPI number?
The NPI number for Marshall Williams is 1649962937. It was assigned to this individual provider in the NPPES registry on May 24, 2023.
Where is Marshall Williams located?
Marshall Williams practices at 3060 Mobile Hwy, Montgomery, AL 36108. The listed phone number is (334) 293-6670.
What is Marshall Williams's specialty?
The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.
Is Marshall Williams enrolled in Medicare?
Yes. Marshall Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marshall Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marshall Williams reassigns Medicare benefits to Health Services, Inc (Montgomery, AL). 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 Marshall Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marshall Williams accept?
Health plans from Best Life, Blue Cross and Blue Shield of Alabama, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 10 other insurers list Marshall Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marshall Williams was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Marshall Allen Williams II, DDS · NPI 1649962937
General Practice provider in Montgomery, Alabama. Individual provider, active in the CMS NPPES registry since May 24, 2023.
## Identity
- **NPI:** 1649962937 (Entity type: Individual)
- **Enumerated:** May 24, 2023
- **Primary specialty:** Dentist - General Practice · taxonomy 1223G0001X
- **State license:** D.007308-C1 (Alabama)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3060 MOBILE HWY, Montgomery, AL 36108-4027
- **Phone:** (334) 293-6670
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Health Services, Inc (NPI 1528082336, Montgomery, AL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649962937) · Data from the CMS NPPES public registry.