Financial research concept

Premium per Member per Month (PMPM): Health Insurance Premium Yield

Premium per member per month converts health-insurance premium revenue into a monthly member-level yield, separating pricing and product mix from raw membership growth.

By Lee BaileyPublished Sep 16, 2026
  1. PMPM separates yield from membership growth
  2. PMPM is not pure price
  3. Premium PMPM and medical-cost PMPM answer different questions
  4. Average membership is usually better than ending membership
  5. Medicare and Medicaid PMPM can be funding-sensitive
  6. A simple example
  7. Filing examples
  8. Bottom line
  9. Part of the Managed Care Insurance Operating Model
  10. See It in Company Research
  11. Continue Research

Premium per member per month (PMPM) measures premium revenue on a monthly per-member basis for a defined health-insurance population.

A simple formulation is:

text
1Premium PMPM
2= Premium Revenue
3÷ Member Months

where:

text
1Member Months
2= Sum of Covered Members for Each Month in the Period

If a plan earns $900 million of premium revenue across 1.5 million member months, premium PMPM is $600.

PMPM separates yield from membership growth

Total premium revenue can increase because the insurer covers more people, earns more premium per covered member, or both.

A useful bridge is:

text
1Premium Revenue
2≈ Average Medical Membership
3× Premium PMPM
4× Months in Period

That makes PMPM a natural companion to Medical Membership.

If membership rises 10% while premium PMPM is flat, premium revenue can still grow substantially. If membership falls but pricing and risk-adjusted premium yield rise enough, premium revenue can grow despite fewer members.

PMPM is not pure price

Premium per member can change for reasons beyond an explicit rate increase.

Important drivers include:

  • product mix;
  • member age and risk mix;
  • geography;
  • employer versus individual business;
  • Medicare, Medicaid, or commercial mix;
  • benefit design;
  • government benchmark or subsidy changes;
  • risk-adjustment effects;
  • contract renewals; and
  • acquired or exited books of business.

So a 6% increase in PMPM does not necessarily mean the insurer raised like-for-like prices by 6%.

Premium PMPM and medical-cost PMPM answer different questions

Premium PMPM describes revenue yield. Medical-cost PMPM describes claims or benefit cost per member.

The spread between them helps explain underwriting economics, but administrative expense and other items still matter.

At a simplified level:

text
1Medical Loss Ratio
2≈ Medical Cost PMPM
3÷ Premium PMPM

That relationship only works when the numerator and denominator use compatible populations, periods, and accounting definitions.

Average membership is usually better than ending membership

Premium revenue is earned throughout a period, so ending member count is generally not the best denominator for reconstructing PMPM.

If a plan grows from 1.0 million members at the beginning of a quarter to 1.3 million at the end, using 1.3 million for the entire quarter would understate the implied premium per member. Member-month or average-membership data is more aligned with the revenue period.

Medicare and Medicaid PMPM can be funding-sensitive

For government-sponsored business, per-member premium can change with benchmark updates, state contract rates, direct subsidies, risk scores, quality bonuses, and benefit-design changes.

Humana's 2026 disclosures, for example, attribute premium-revenue growth partly to higher per-member Medicare Advantage and stand-alone prescription-drug-plan premiums, alongside membership growth.

A simple example

Suppose a health plan reports:

  • $3.6 billion of quarterly premium revenue; and
  • average medical membership of 2.0 million.

Approximate member months are:

text
12.0M members × 3 months = 6.0M member months

Premium PMPM is therefore:

text
1$3.6B ÷ 6.0M = $600 PMPM

If the prior-year comparable figure was $570, PMPM increased about 5.3%, but the cause still needs to be decomposed into pricing, funding, and mix.

Filing examples

Humana's Q2 2026 filing explains premium-revenue changes through both membership growth and higher per-member premiums in its Medicare businesses. UnitedHealth Group and Elevance Health similarly discuss premium pricing and membership as separate revenue drivers.

Sources:

Bottom line

Premium PMPM measures monthly premium yield per covered member, not pure price. Preserve average versus ending membership, product, funding source, geography, risk mix, benefit design, and government-program adjustments before comparing health insurers.

Part of the Managed Care Insurance Operating Model

Connect membership, premium yield, medical cost trend, loss ratio, claims timing, and prior-period development to understand managed-care underwriting economics.

How the model fits together
  • Premium and medical-cost economics: Premium revenue is broadly driven by membership, premium per member per month, and time on a consistent member basis. Medical loss ratio then compares medical or benefit cost with premium revenue, while medical cost trend helps explain pressure on that relationship.
  • Claims timing and reserve development: Days claims payable describes claims-liability timing. Prior-period medical claims development revises estimates for earlier incurred claims and can move current reported medical cost without representing current-period utilization.

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

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