DR. DAVID J CHALMERS M.D.
NPI 1669665196
Urology - Pediatric Urology in South Portland, ME
About Dr. David J Chalmers M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID J CHALMERS M.D. (NPI 1669665196) is an individual pediatric urology provider in South Portland, Maine, licensed in Maine (MD20180) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Dr. David J Chalmers M.d. 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 Chalmers reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Portland, ME 04106
- Reassigned Medicare billing, Maine enrollment
- Also billed through NPI 1134305386 (Maine)
- 203 clinicians in this Medicare group
South Portland, ME 04106
- Reassigned Medicare billing, Maine enrollment
- Also billed through NPI 1346299815 (Maine)
- 3,140 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SOUTH PORTLAND, ME 04106
SOUTH PORTLAND, ME 04106
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 Chalmers's NPI number?
The NPI number for David Chalmers is 1669665196. It was assigned to this individual provider in the NPPES registry on August 17, 2007.
Where is David Chalmers located?
David Chalmers practices at 100 Brickhill Ave, South Portland, ME 04106. The listed phone number is (207) 773-1728.
What is David Chalmers's specialty?
The primary specialty registered for this NPI is Urology, specializing in Pediatric Urology, with taxonomy code 2088P0231X.
Is David Chalmers enrolled in Medicare?
Yes. David Chalmers 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 Chalmers's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Chalmers reassigns Medicare benefits to 2 organizations: Maine Medical Partners (South Portland, ME) and Mainehealth (South Portland, 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 Chalmers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Chalmers accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list David Chalmers 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.
Is David Chalmers affiliated with any hospitals?
According to CMS data, David Chalmers is affiliated with Maine Medical Center.
When was this NPI record last updated?
The NPPES record for David Chalmers was last updated on April 26, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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. David J Chalmers, M.D. · NPI 1669665196
Pediatric Urology physician in South Portland, Maine. Individual provider, active in the CMS NPPES registry since August 17, 2007.
## Identity
- **NPI:** 1669665196 (Entity type: Individual)
- **Enumerated:** August 17, 2007
- **Primary specialty:** Urology - Pediatric Urology · taxonomy 2088P0231X
- **State license:** MD20180 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 100 BRICKHILL AVE, South Portland, ME 04106-1999
- **Phone:** (207) 773-1728
## 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): Maine Medical Partners (NPI 1710215751, South Portland, ME); Mainehealth (NPI 1679887400, South Portland, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** April 26, 2017
- **Other identifiers:** Medicare PIN E400148625 (ME); Medicare PIN E400151013 (ME)
---
Source: [NPI Profile](https://npiprofile.com/npi/1669665196) · Data from the CMS NPPES public registry.