---
title: PhysicalOnlyMatchRule
summary: API reference for PhysicalOnlyMatchRule.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Domain
reference_type: package
---

# PhysicalOnlyMatchRule

`PhysicalOnlyMatchRule` is the `IProviderMatchRule` implementation used when a biller's physical address alone (or physical matched against payment/facility/all three) should be enough to identify a unique provider location: it applies when the biller has only a physical address, or when the physical address matches whichever other roles are present, and it matches only against provider locations that have exactly one non-expired, non-correspondence/non-payment address, further narrowed to locations with exactly one non-expired address overall. It is part of the `ProviderIndexerV2` rule set for operation OP-DOM-04 ([DOM-BR-028](../../business-rules.md#dom-br-028-v2-indexing)) and is also the default fallback rule `ProviderMatcher` builds when no explicit rule set is supplied.

## Purpose
- Matches a biller's physical address against provider locations that have exactly one qualifying (non-expired, non-correspondence, non-payment) address, applying when the biller has only a physical address or when its physical address matches its payment/facility/all-three addresses ([DOM-BR-022](../../business-rules.md#dom-br-022-address-match), [DOM-BR-029](../../business-rules.md#dom-br-029-matching)).
- Narrows the initial address match down to provider locations with exactly one non-expired address overall, returning that location only when exactly one such candidate remains.

## Context
- Namespace: `SAIF.Domain.Claims.Ebilling.Indexing`
- Assembly/package: `SAIF.Domain` (`Domain/SAIF.Domain/SAIF.Domain.csproj`, .NET Framework 4.6.2 class library)

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| PhysicalOnlyMatchRule (constructor) | `public PhysicalOnlyMatchRule(IEnumerable<EbillAddress> ebillAddresses, IEnumerable<ProviderAddress> providerAddresses)` | Initializes the rule with the biller's e-bill addresses and the candidate provider addresses, via `ProviderMatchBase`. |
| UniqueProviderLocationMatch | `public ProviderLocation UniqueProviderLocationMatch(bool concatenateTwoLineBillAddresses)` | Applies only when the biller has a physical-address-only profile or a matching physical/payment/facility combination, then returns the unique provider location whose only qualifying address matches the physical address, or `null` otherwise ([DOM-BR-029](../../business-rules.md#dom-br-029-matching)). |

## Inherited public members

Members in this section are inherited from `ProviderMatchBase` in `SAIF.Domain`. They are available on this type through inheritance.

| Member | Signature | Purpose | Origin |
| --- | --- | --- | --- |
| BillerHasPhysicalPaymentAndFacilityAddresses | `public bool BillerHasPhysicalPaymentAndFacilityAddresses()` | Reports whether the biller has all three address roles present. | `SAIF.Domain` — `ProviderMatchBase` |
| EbillAddressAndProviderAddressMatch | `public static bool EbillAddressAndProviderAddressMatch(EbillAddress ebillAddress, ProviderAddress providerAddress, bool concatenateTwoLineBillAddresses)` | Reports whether an e-bill address matches a candidate provider address on Line1 (optionally concatenated with Line2), City, and zero-padded zip code ([DOM-BR-022](../../business-rules.md#dom-br-022-address-match)). | `SAIF.Domain` — `ProviderMatchBase` |
| TwoEbillAddressesMatch | `public static bool TwoEbillAddressesMatch(EbillAddress addressOne, EbillAddress addressTwo)` | Reports whether two e-bill addresses match on Line1, City, and zero-padded zip code. | `SAIF.Domain` — `ProviderMatchBase` |
| GetUniqueLocation | `public static ProviderLocation GetUniqueLocation(IList<ProviderAddress> matchedAddressesListOne, IList<ProviderAddress> matchedAddressesListTwo)` | Intersects two matched-address lists by provider-location id and returns the single common `ProviderLocation`, or `null` when the intersection is not exactly one location ([DOM-BR-025](../../business-rules.md#dom-br-025-payment-resolution)). | `SAIF.Domain` — `ProviderMatchBase` |
| GetMatchingProviderAddresses (single address) | `public static IEnumerable<ProviderAddress> GetMatchingProviderAddresses(EbillAddress ebillAddress, IEnumerable<ProviderAddress> providerAddresses, bool concatenateTwoLineBillAddresses)` | Filters the candidate provider addresses down to those matching the given e-bill address. | `SAIF.Domain` — `ProviderMatchBase` |
| GetMatchingProviderAddresses (address set) | `public static IEnumerable<ProviderAddress> GetMatchingProviderAddresses(IEnumerable<EbillAddress> ebillAddresses, IEnumerable<ProviderAddress> providerAddresses, bool concatenateBillAddresses)` | Filters the candidate provider addresses down to those matching any address in the given e-bill address set. | `SAIF.Domain` — `ProviderMatchBase` |
| RemoveSpecialCharacters | `public static string RemoveSpecialCharacters(string input)` | Strips every character except letters, digits, and spaces from the input, returning `null` for a null input. | `SAIF.Domain` — `ProviderMatchBase` |

## Behavioral notes
- The rule filters candidate provider locations to those with exactly one address excluding correspondence and payment types before matching, then re-checks that the matched location has exactly one non-expired address overall — a location that passes the first filter but has multiple non-expired addresses of other types will not produce a unique match*.

> **Note:** Statements marked with `*` were inferred from code structure, naming conventions, or
> contextual evidence where direct confirmation was not available in source artifacts.

## Sources
- `Domain/SAIF.Domain/Claims/Ebilling/Indexing/PhysicalOnlyMatchRule.cs`
- `Domain/SAIF.Domain/Claims/Ebilling/Indexing/ProviderMatchBase.cs`