DR. WALTER J ROK M.D.
NPI 1780649467
Pediatrics - Adolescent Medicine in Fall River, MA
About Dr. Walter J Rok M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WALTER J ROK M.D. (NPI 1780649467) is an individual adolescent medicine provider in Fall River, Massachusetts, licensed in Massachusetts (50751) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Walter J Rok M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Walter Rok reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fall River, MA 02721
- Reassigned Medicare billing, Massachusetts enrollment
- 5 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.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FALL RIVER, MA 02721
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 Walter Rok's NPI number?
The NPI number for Walter Rok is 1780649467. It was assigned to this individual provider in the NPPES registry on April 18, 2006.
Where is Walter Rok located?
Walter Rok practices at 851 Middle St Suite 1100, Fall River, MA 02721. The listed phone number is (508) 324-6800.
What is Walter Rok's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.
Is Walter Rok enrolled in Medicare?
Yes. Walter Rok is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Walter Rok's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Walter Rok reassigns Medicare benefits to Pediatric Associates Of Fall River, Inc (Fall River, MA). 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 Walter Rok'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 Walter Rok was last updated on June 4, 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. Walter J Rok, M.D. · NPI 1780649467
Adolescent Medicine physician in Fall River, Massachusetts. Individual provider, active in the CMS NPPES registry since April 18, 2006.
## Identity
- **NPI:** 1780649467 (Entity type: Individual)
- **Enumerated:** April 18, 2006
- **Primary specialty:** Pediatrics - Adolescent Medicine · taxonomy 2080A0000X
- **State license:** 50751 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 851 MIDDLE ST, SUITE 1100, Fall River, MA 02721-1778
- **Phone:** (508) 324-6800 · **Fax:** (508) 674-5440
## 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:** Pediatric Associates Of Fall River, Inc (NPI 1619930146, Fall River, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 4, 2012
- **Other identifiers:** Medicare UPIN D88300 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1780649467) · Data from the CMS NPPES public registry.