DAVID WALTER D.O.
NPI 1487868394
Psychiatry & Neurology - Child & Adolescent Psychiatry in Portland, ME
About David Walter D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID WALTER D.O. (NPI 1487868394) is an individual child & adolescent psychiatry provider in Portland, Maine, licensed in Maine (DO1537) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Philadelphia College Of Osteopathic Medicine (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 and accepts Medicare assignment
David Walter D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show David Walter reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saco, ME 04072
- Reassigned Medicare billing, Maine enrollment
- 200 clinicians in this Medicare group
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 348 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 David Walter's NPI number?
The NPI number for David Walter is 1487868394. It was assigned to this individual provider in the NPPES registry on May 9, 2007.
Where is David Walter located?
David Walter practices at 25 Middle Street, Portland, ME 04101. The listed phone number is (207) 321-8300.
What is David Walter's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is David Walter enrolled in Medicare?
Yes. David Walter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for David Walter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Walter reassigns Medicare benefits to 2 organizations: Sweetser (Saco, ME) and Acadia Hospital Corp (Bangor, ME). 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 David Walter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Walter accept?
Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list David 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 David Walter was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# David Walter, D.O. · NPI 1487868394
Child & Adolescent Psychiatry physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since May 9, 2007.
## Identity
- **NPI:** 1487868394 (Entity type: Individual)
- **Enumerated:** May 9, 2007
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** DO1537 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 25 MIDDLE STREET, Portland, ME 04101
- **Phone:** (207) 321-8300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **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): Sweetser (NPI 1538122445, Saco, ME); Acadia Hospital Corp (NPI 1215940523, Bangor, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Philadelphia College Of Osteopathic Medicine, class of 1993
## Record status
- **NPPES last updated:** October 8, 2025
- **Other identifiers:** Medicaid 310050099 (ME)
---
Source: [NPI Profile](https://npiprofile.com/npi/1487868394) · Data from the CMS NPPES public registry.