The dental-network rulebook, demystified
Before a Medi-Cal dental plan can say it has a network, California makes it prove the network is real — close enough, big enough, and in your language. This is that test, in plain language.
First, a name check
The file is labeled “DMC,” which usually makes people think Drug Medi-Cal. It isn't. This document is the Medi-Cal Dental Managed Care methodology — here DMC = Dental Managed Care. It is about networks, not payment: there are no rates, cost reports, or reimbursement formulas in it. So that's the tour you're on — how California checks whether a dental plan's network actually exists.
Source: DHCS, “Medi-Cal Dental Managed Care (DMC) Methodology Overview,” p. 1.
1Orientation
What the DMC methodology actually is
It's California's yearly exam for dental plans. Each year the Department of Health Care Services (DHCS) measures every Medi-Cal Dental Managed Care plan's provider network against fixed standards, then certifies the results to the federal government.
Think of it as a three-part inspection: (A) are providers close enough, (B) are there enough of them for the members enrolled, and (C) can members actually communicate with them. A plan passes by proving all three — or, where it can't, by formally telling the state it fell short and what it will do about it.
Source: DHCS DMC Methodology Overview, pp. 1, 3.
2The why
Why this document exists
It isn't optional paperwork — it's a federal requirement with a California overlay. DHCS has to certify dental-plan networks every year and hand that certification to CMS. The standards trace back through a specific chain of law:
The federal rule
The CMS Medicaid & CHIP “Final Rule” (CMS-2390-F) and 42 CFR §§ 438.68, 438.206, 438.207 require states to set and check network-adequacy standards.
The start date
The Final Rule required DHCS to have network-adequacy standards in place effective July 1, 2018.
The California layer
California Welfare & Institutions Code § 14197 sets the state-specific network-adequacy standards DHCS applies on top of the federal floor.
Source: DHCS DMC Methodology Overview, p. 3.
3Who's on the hook
Who has to follow it
Three players, three roles. The standards apply to all DMC (Dental Managed Care) plans; DHCS does the measuring; CMS receives the annual certification.
The dental plans Must comply
Every DMC plan must submit provider and facility lists (monthly and annually), utilization projections, language subcontracts, and — when short — alternative-access requests, and must contract with the required provider types.
DHCS Certifies
The state runs the geospatial mapping, the surveys, the capacity review and the language review — then certifies the network.
CMS Receives it
The federal agency DHCS submits the network certification to, one time per year.
(Counties aren't a regulated party here — the document references them only as a source of Medi-Cal member address information for the mapping step.)
Source: DHCS DMC Methodology Overview, pp. 3–7.
4The three tests
Three ways a network gets measured
The methodology has three areas. The letters below are exactly how DHCS labels them.
Time or Distance — Geographic Access
Are providers close enough? Under the , dentists must sit within a set travel limit of the member's home. DHCS geolocates members and providers with ArcGIS and runs a distance analysis for adult members (21+) and child members (0–20), then notifies plans of any deficient ZIP codes.
Service Fulfillment — Capacity & Composition
Are there enough providers, of the right kinds? DHCS checks provider-to-member ratios, compares the plan's projected utilization against the DHCS estimate (benchmarked to Calendar Year 2022 measures), and confirms the network carries the appropriate range of preventive, primary, and specialty dental services.
Language Capabilities
Can members actually communicate? Plans must serve members with Limited English Proficiency, provide free oral interpretation (in person and by phone) and auxiliary aids (TTY, TDD, ASL) for any language, and report each provider's languages and cultural-competence training in the directory.
Source: DHCS DMC Methodology Overview, pp. 3–7.
5By the numbers
The standards a plan has to hit
These are the actual figures in the document — not estimates.
Source: DHCS DMC Methodology Overview, pp. 3–6 (time/distance p. 3; ratios p. 5; provider types p. 6).
The standards, line by line
| Standard | Requirement | Source page |
|---|---|---|
| Time or distance — primary care dentists | Within 10 miles or 30 minutes of the member's residence | p. 3 |
| Time or distance — total dentists (primary + specialty) | Within 10 miles or 30 minutes of the member's residence | p. 3 |
| Provider-to-member ratio — primary care dentists | 1 : 2,000 | p. 5 |
| Provider-to-member ratio — total dentists | 1 : 1,200 | p. 5 |
| Secret-shopper surveys | Conducted for all DMC plans on at least a quarterly basis | p. 4 |
| Utilization benchmark | Annual dental visit & preventive-services measures, Calendar Year 2022 | p. 6 |
| Alternative Access Standard (AAS) approval | Valid for 3 contract years; resubmit every 3 years unless the network changes sooner | p. 5 |
The 7 required provider types
- Primary Care Dentists
- Endodontics
- Oral & Maxillofacial Surgery
- Orthodontics
- Pedodontics
- Periodontics
- Prosthodontics
Source: DHCS DMC Methodology Overview, p. 6 (provider types); pp. 3–5 (standards).
6The methodology in motion
How DHCS actually checks
Four moves, run every year, then certified to CMS.
Map it
DHCS geolocates members and providers in ArcGIS and runs the Origin–Destination Cost Matrix Tool to measure travel time and distance for adults (21+) and children (0–20).
Shop it
Through surveys — at least quarterly — DHCS calls plan offices to test real provider availability and appointment timing.
Count it
DHCS checks provider-to-member ratios and compares the plan's projected utilization against the DHCS estimate to confirm the network can actually carry its members.
Translate it
DHCS reviews language access — interpretation subcontracts, auxiliary aids, and the directory's record of each provider's languages and cultural-competence training.
↻ … run annually, and submitted to CMS once each year.
Source: DHCS DMC Methodology Overview, pp. 3–7 (mapping/tools p. 4).
7When the network comes up short
What happens if a plan can't meet the standard
The document is a certification process, not a penalty schedule — it doesn't set fines or recoupment. What it does set is a paper trail the plan must produce when it falls short:
Deficient ZIP codes get flagged
When a plan can't meet the time-or-distance standard, DHCS notifies it of the deficient ZIP codes — separately for adults and children — and the plan must respond.
The plan files an “Alternative Access Standard”
The plan must submit an request — but only after it has exhausted all other reasonable contracting options. It lists, by ZIP code and county, how far the nearest in-network provider is from the most remote members, plus an immediate plan (e.g., out-of-network providers) and a long-term plan to obtain providers. DHCS approves or denies each request per ZIP code and provider type, and posts approved requests publicly.
In plain language Read it straight
An approved Alternative Access Standard is the plan formally telling the state, “we could not build a real network here.” It buys three years before the plan has to ask again — and the gap between a network that passes on paper and one a member can actually reach is exactly the this site exists to document.
Sources: DHCS DMC Methodology Overview — AAS process, 3-year validity & public posting, pp. 4–5; immediate & long-term plan requirement, p. 6; secret-shopper findings, p. 4. Commentary is the editor's, clearly labeled as such.
Separately, when secret-shopper surveys turn up contract-compliance problems, DHCS notifies the plan, which must then educate and monitor its providers to bring them into compliance.
Decoder ring
DMC, translated
Every acronym in the document, in one place.
Definitions condensed from the DHCS DMC Methodology Overview (pp. 1–7).
Read it yourself
We're paraphrasing a public document — so here's the document. Seven pages, dated August 29, 2025.
Open the DMC Methodology Overview (PDF)
Why this matters here
These are the standards a Medi-Cal dental network is supposed to meet. See the Knox-Keene rules and what the State’s own 2021 certification says about specialists for how the law is supposed to close that gap.