HEIDI R WIERMAN MD
NPI 1699868158
Internal Medicine - Geriatric Medicine in Portland, ME
About Heidi R Wierman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HEIDI R WIERMAN MD (NPI 1699868158) is an individual geriatric medicine provider in Portland, Maine, licensed in Maine (MD15844) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and is a graduate of Oregon Health Sciences University School Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 10
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
Heidi R Wierman Md 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 Heidi Wierman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, ME 04102
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Portland, ME 04102
- Reassigned Medicare billing, Maine enrollment
- 203 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 4
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEMid Coast Hospital
Acute Care Hospitals · Brunswick, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, ME 04102
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 Heidi Wierman's NPI number?
The NPI number for Heidi Wierman is 1699868158. It was assigned to this individual provider in the NPPES registry on October 2, 2006.
Where is Heidi Wierman located?
Heidi Wierman practices at 22 Bramhall St., Portland, ME 04102. The listed phone number is (207) 662-2875.
What is Heidi Wierman's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Heidi Wierman enrolled in Medicare?
Yes. Heidi Wierman 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 Heidi Wierman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heidi Wierman reassigns Medicare benefits to 2 organizations: Mainehealth (Portland, ME) and Maine Medical Partners (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 Heidi Wierman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Heidi Wierman accept?
Health plans from Harvard Pilgrim Health Care and Taro Health list Heidi Wierman 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 Heidi Wierman affiliated with any hospitals?
According to CMS data, Heidi Wierman is affiliated with Maine Medical Center and Mid Coast Hospital.
When was this NPI record last updated?
The NPPES record for Heidi Wierman was last updated on August 15, 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.