DR. ROBERT JAMES WALTER MD, DHCE
NPI 1831351519
Internal Medicine - Pulmonary Disease in Bethesda, MD
About Dr. Robert James Walter Md, Dhce NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT JAMES WALTER MD, DHCE (NPI 1831351519) is an individual pulmonary disease provider in Bethesda, Maryland, licensed in Virginia (0101247743) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and maintains a secondary practice location in Fort Sam Houston.
NPPES Registry Identity
Specialties & Licenses 4
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)
Dr. Robert James Walter Md, Dhce is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Robert Walter reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 110 clinicians in this Medicare group
Corpus Christi, TX 78404
- Reassigned Medicare billing, Texas enrollment
- 69 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20889 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 11
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.
BETHESDA, MD 20889
BETHESDA, MD 20889
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 Robert Walter's NPI number?
The NPI number for Robert Walter is 1831351519. It was assigned to this individual provider in the NPPES registry on June 25, 2008.
Where is Robert Walter located?
Robert Walter practices at 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (301) 295-4000.
What is Robert Walter's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Robert Walter enrolled in Medicare?
Yes. Robert Walter is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Robert Walter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Walter reassigns Medicare benefits to 2 organizations: Texas Ips LLC (San Antonio, TX) and Gulf Coast Intensivists, PLLC (Corpus Christi, TX). Each 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 Robert Walter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Walter accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Imperial Insurance Companies, Inc., Oscar Health and Oscar Insurance Company list Robert Walter 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 Robert Walter was last updated on December 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Robert James Walter, MD, DHCE · NPI 1831351519
Pulmonary Disease physician in Bethesda, Maryland. Individual provider, active in the CMS NPPES registry since June 25, 2008.
## Identity
- **NPI:** 1831351519 (Entity type: Individual)
- **Enumerated:** June 25, 2008
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** 0101247743 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8901 ROCKVILLE PIKE, Bethesda, MD 20889-0001
- **Phone:** (301) 295-4000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Texas Ips LLC (NPI 1629368535, San Antonio, TX); Gulf Coast Intensivists, PLLC (NPI 1104509199, Corpus Christi, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1831351519) · Data from the CMS NPPES public registry.